Radio Frequency Switch (e.g., T/r Switch) Patents (Class 335/4)
  • Patent number: 9741516
    Abstract: In an electromagnetic relay, terminal slits into which a coil terminal connected to a coil, a fixed contact terminal to which a fixed contact is attached, and a movable contact terminal electrically connected to a movable contact are inserted into is formed in a base, and the base is formed with ventilation holes used to discharge gas generated in an internal space and discharge vapor generated in the internal space. The ventilation holes are formed so as to be connected with the terminal slits.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: August 22, 2017
    Assignees: MITSUBA CORPORATION, HONDA MOTOR CO., LTD.
    Inventors: Toshio Takahashi, Hiroyuki Mori, Yoshiki Noro, Tsutomu Fukui
  • Patent number: 9697973
    Abstract: A novel-structure electromagnetic relay containing a permanent magnet. At least three pairs of leading-out rods penetrate through a rectangular base, two pairs of leading-out rods are connected with the lower ends of four static spring plates respectively, an iron core and a coil framework are arranged at a diagonal position on the upper surface of the base, winding connectors of coils are connected with the other pair of leading-out rods respectively, the static spring plates are arranged at the other diagonal position on the upper surface of the base, a support is arranged at the top end of the coil framework, a pole face, a yoke and the permanent magnet are installed on the support, an armature, movable spring plates, the pole face and the yoke are located and connected through a middle shaft, and a sealing casing is covered outside the relay.
    Type: Grant
    Filed: October 15, 2013
    Date of Patent: July 4, 2017
    Assignee: HARBIN INSTITUTE OF TECHNOLOGY
    Inventors: Huimin Liang, Yong Xie, Jiaxin You, Guoqiang Xie
  • Patent number: 9543817
    Abstract: This invention relates to energy harvesting of electrical energy by the change in a magnetic circuitous permeability path for magnetic lines of force that move through a coil of wire to induce, by Faraday's Law of Electromotive Induction, an electromotive force at the coil winding terminals of an associated coil. An abrupt, substantially instant change generated by a magnet's axial or angular mechanical and magnetic contact or dislocation through instant movement of the magnet by magnetic unlike pole spring back attractive force action with a high permeability stationary hollow or solid magnetic metal core centered in a coil bobbin with a wire wound wire coil providing efficient electrical generation therefrom.
    Type: Grant
    Filed: May 19, 2015
    Date of Patent: January 10, 2017
    Inventor: David Deak, Sr.
  • Patent number: 9142374
    Abstract: A solenoid linear actuator comprises a unibody soft magnetic core with a central body and an upper disk and narrower end extrusions, and a pair of soft magnetic bodies on the two ends of the solenoid. When the solenoid is energized, unibody core is magnetized and attracted to the soft magnetic plates from below, pulling unibody core downward. The extrusions on the two ends of unibody core actuate external mechanisms (pushers and cantilevers, respectively) to accomplish various electrical switching operations. A permanent magnet can be added to the upper side to assist the actuation.
    Type: Grant
    Filed: May 16, 2014
    Date of Patent: September 22, 2015
    Inventor: Jun Shen
  • Patent number: 8847715
    Abstract: A permanent magnet is pivotally mounted in a top spacer layer of a switching device and rests on a flex arm created in an underlying flex circuit layer. The underside of the flex arm rests on a thin bar formed in a lower spacer layer beneath which lies a base layer including an electromagnet. Activation of the electromagnet causes rotation of the flex arm to thereby close and open electrical contacts formed respectively on the underside of the flex arm and on the top surface of the base layer.
    Type: Grant
    Filed: September 26, 2012
    Date of Patent: September 30, 2014
    Assignee: Telepath Networks, Inc.
    Inventors: Kevin Wilson, Robert Tarzwell, Patrick McGuire
  • Patent number: 8663105
    Abstract: An ingestible apparatus produces and processes physiological signals representative of a physiological parameter. The apparatus measures the physiological parameter from within the body of a living entity. The apparatus includes a physiological transducer circuit to sense the physiological signals, a processor to process the physiological signals in response to the physiological transducer circuit, and a transmitter that transmits the processed signals during transmission intervals which are alternated with idle intervals. The apparatus further includes a capacitor-based circuit, including at least one capacitor, to accumulate sufficient charge during one of the idle intervals to supply power to the transmitter during one of the transmission intervals.
    Type: Grant
    Filed: August 8, 2009
    Date of Patent: March 4, 2014
    Assignee: NXP, B.V.
    Inventors: Jean-Marie Malaurie, Yvan Olivier Jean Ghislain Droinet, Marc-Herve Stodel
  • Patent number: 8526883
    Abstract: An RF switch for an RF splitter is disclosed, in which the bias voltage for the RF switching elements can be supplied, by using an RF to DC translator, from the RF signal on the input side to the switch. By using a native NMOS switch, routing of the RF signal is thus enabled without the necessity for an external power supply.
    Type: Grant
    Filed: June 11, 2009
    Date of Patent: September 3, 2013
    Assignee: NXP, B.V.
    Inventor: Frederic Francois Villain
  • Publication number: 20130093540
    Abstract: An induction generator for a radio switch having a magnet element as well as an induction coil with a coil core wherein the coil core is U-shaped, wherein a first rest position and a second rest position are in each case defined for the magnet element, in contact with the limbs of the coil core, and a flux direction reversal takes place in the coil core, whenever a change takes place between these positions, wherein a movement path for the magnet element is predetermined for a movement between the rest positions, wherein the induction generator has a first mechanical energy storage device which is operatively connected to the magnet element and first of all stores energy in the course of forcing a movement from a rest position and, after reaching an intermediate position, which is defined along the movement path and corresponding to which the magnetic forces on the coil core suddenly decrease, emits this energy to the magnet element in order to mechanically accelerate the movement of the magnet element to the
    Type: Application
    Filed: February 14, 2011
    Publication date: April 18, 2013
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventor: Eduard Ruff
  • Patent number: 8421561
    Abstract: A high frequency relay has at least two drive terminal units arranged at an outer peripheral brim portion of at least two regions of three regions divided from a plane region of a base with a signal line. The base may be a plane triangle, plane square, plane hexagon, or a plane circle.
    Type: Grant
    Filed: December 4, 2007
    Date of Patent: April 16, 2013
    Assignee: OMRON Corporation
    Inventor: Tatsuo Shinoura
  • Patent number: 8207460
    Abstract: An RF MEMS switch apparatus includes a planar substrate and an electrostatic actuator formed thereon. The electrostatic actuator includes two sets of interdigitated comb which is capable of moving an armature and a shunt contact head. The armature can be connected to the substrate through a main return spring and one or more contact head support springs. The shunt contact head includes a primary shunt contact and one or more spring-loaded sacrificial contacts. The shunt contact head can serve as a primary contact to bridge a stationary input electrode and an output electrode. The switch is off in a relaxed position and when actuated the primary shunt contact comes into direct mechanical contact with the stationary input electrode and the stationary output electrode. The switch remains closed as long as the actuator is powered and the springs return the armature to the relaxed position when the power is removed.
    Type: Grant
    Filed: January 15, 2010
    Date of Patent: June 26, 2012
    Assignee: Senda Micro Technologies, Inc.
    Inventors: Lorenzo G. Rodriguez, James Henry Campbell, Jose G. Mireles
  • Patent number: 8058957
    Abstract: According to one embodiment, a first magnetic coupling element is coupled to a first conductive element of a first electrical circuit. A second magnetic coupling element is coupled to a second conductive element of a second electrical circuit. The second magnetic coupling element is operable to attract the first magnetic coupling element using a magnetic force such that electrical contact is made between the first conductive element and the second conductive element.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: November 15, 2011
    Assignee: Raytheon Company
    Inventors: James M. Irion, II, Brian W. Johansen
  • Patent number: 7872551
    Abstract: A relay includes a contact point block having a support shaft with both ends spanning a contact point base, a plunger having a movable contact at a lower end thereof, and a movable iron piece configured to drive the plunger and to have a plate spring. The relay also includes an electromagnetic unit and a base block having a fixed contact point at a position opposite to the movable contact point. The movable iron piece is supported on the supporting shaft. The plunger is inserted through an operation hole of the contact point base. Upper and lower surfaces of the contact point block are held by the electromagnetic unit and the base block. The electromagnetic unit directly fixes the iron core to an upper surface of the contact point base.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: January 18, 2011
    Assignee: OMRON Corporation
    Inventors: Masanori Nakamura, Yojiro Saruwatari, Tatsuo Shinoura, Akira Ota
  • Patent number: 7847660
    Abstract: A relay driving a plunger includes a movable iron piece, and a movable contact point, and position restricting means. The movable iron piece is configured to rotate around a horizontal shaft center between a contact point base and an electromagnetic unit based on excitation and nonexcitation of an electromagnetic unit placed above the contact point base. The movable contact point is fixed to a lower end portion of the plunger protruding from a lower surface of the contact point base. The movable contact point is contacted with and separated from a fixed contact point. The position restricting means is provided on an upper surface side of the contact point base.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: December 7, 2010
    Assignee: OMRON Corporation
    Inventors: Masanori Nakamura, Yojiro Saruwatari, Tatsuo Shinoura, Akira Ota
  • Patent number: 7843289
    Abstract: An improved electromechanical switch designed to operate at frequencies from DC through microwave has terminal probe tips that are formed from an alloy of noble metal and contoured with a pattern of peaks and valleys in order to provide better contact wiping operation and capture of wear debris. The switch incorporates damper elements to reduce switching contact bounce, thus providing increased contact life as well as higher quality signal switching.
    Type: Grant
    Filed: April 23, 2008
    Date of Patent: November 30, 2010
    Assignee: Scientific Components Corporation
    Inventors: Aron Raklyar, Gennady Simkin, Efim Polishchuk
  • Patent number: 7768365
    Abstract: A relay driving a plunger includes a movable iron piece, and a movable contact point, and position restricting means. The movable iron piece is configured to rotate around a horizontal shaft center between a contact point base and an electromagnetic unit based on excitation and nonexcitation of an electromagnetic unit placed above the contact point base. The movable contact point is fixed to a lower end portion of the plunger protruding from a lower surface of the contact point base. The movable contact point is contacted with and separated from a fixed contact point. The position restricting means is provided on an upper surface side of the contact point base.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: August 3, 2010
    Assignee: OMRON Corporation
    Inventors: Masanori Nakamura, Yojiro Saruwatari, Tatsuo Shinoura, Akira Ota
  • Patent number: 7710223
    Abstract: A relay includes a movable iron piece, a plate spring fixed to the one surface of the movable iron piece, a shaft hole formed by the one surface of the movable iron piece and the plate spring, and a supporting shaft inserted through the shaft hole. The movable iron piece is rotated round the supporting shaft based on excitation and nonexcitation of a magnetic unit. Both end portions of the plate spring alternately drive a contact point unit. The shaft hole is formed by a flat portion of the one surface of the movable iron piece and a bearing portion formed by subjecting the plate spring to bending work. The movable iron piece is supported so as to be rotatable.
    Type: Grant
    Filed: August 8, 2006
    Date of Patent: May 4, 2010
    Assignee: OMRON Corporation
    Inventors: Akira Ota, Tatsuo Shinoura, Yojiro Saruwatari, Masanori Nakamura
  • Patent number: 7633361
    Abstract: An improved electromechanical RF switch provides enhanced reliability and lifespan by incorporating a middle plate between the case and base elements for locating the guide pins, reed holders and reeds to increase accuracy in critical component alignment. The middle plate reduces required precision during assembly of the switch, thus increasing assembly accuracy while reducing labor cost. The guide pins are made of a hard insulator such as glass to generate less wear particles, and the reed holder has a groove filled with lubricant to trap any wear particles that result from sliding friction during switch operation. Optionally, a low-friction bushing is used within the case bore to further reduce sliding friction during reed holder travel. The reeds are made of thin, flexible metal and have ends shaped so that when the ends contact switching terminals, a wiping action removes any surface contamination from both the reed ends and the terminals.
    Type: Grant
    Filed: January 28, 2009
    Date of Patent: December 15, 2009
    Assignee: Scientific Components Corporation
    Inventors: Aron Raklyar, Gennady Simkin, Efim Polishchuk, Alexsander Meisarosh
  • Publication number: 20090289736
    Abstract: Spinwave transmission systems that include switching devices to direct the transmission of the spinwaves used for data transfer and processing. In one particular embodiment, a system for spinwave transmission has a first magnetic stripe configured for transmission of a spinwave and a second magnetic stripe for transmission of the spinwave, with a gap therebetween. The system includes a coupler that has a first orientation and a second orientation, where in the first orientation, no magnetic connection is made between the magnetic stripes, and in the second orientation, a connection is made between the magnetic stripes. The connection allows transmission of the spinwave from the first magnetic stripe to the second magnetic stripe. The first and second orientation may be the physical position of the coupler, moved by thermal, piezoelectric, or electrostatic forces, or, the first and second orientation may be a magnetic state of the coupler.
    Type: Application
    Filed: May 23, 2008
    Publication date: November 26, 2009
    Applicant: SEAGATE TECHNOLOGY LLC
    Inventors: Haiwen Xi, Dadi Setiadi, Insik Jin, Yang Li, Song Xue
  • Patent number: 7609135
    Abstract: A switching apparatus has a conductive housing forming a chamber. The housing has an aperture enabling communication between the chamber and a housing exterior. A rod extends through the aperture, and has a first end within the chamber, and an opposed second end outside the chamber. The rod reciprocates over a range of motion between a first position in which a limited portion of the rod extends into the chamber, and a second position in which a greater portion of the rod extends into the chamber. The rod has a electrically insulative portion electrically isolating the first end from the second end, and has a conductive surface contacting the housing. A pair of electrical contacts are located in the chamber, and a shorting bar connected to the first end of the rod operates to bridge the contacts when the rod is in a selected position.
    Type: Grant
    Filed: November 12, 2004
    Date of Patent: October 27, 2009
    Assignee: Tektronix, Inc.
    Inventor: Kei-Wean Calvin Yang
  • Publication number: 20090160585
    Abstract: An improved electromechanical RF switch provides enhanced reliability and lifespan by incorporating a middle plate between the case and base elements for locating the guide pins, reed holders and reeds to increase accuracy in critical component alignment. The middle plate reduces required precision during assembly of the switch, thus increasing assembly accuracy while reducing labor cost. The guide pins are made of a hard insulator such as glass to generate less wear particles, and the reed holder has a groove filled with lubricant to trap any wear particles that result from sliding friction during switch operation. Optionally, a low-friction bushing is used within the case bore to further reduce sliding friction during reed holder travel. The reeds are made of thin, flexible metal and have ends shaped so that when the ends contact switching terminals, a wiping action removes any surface contamination from both the reed ends and the terminals.
    Type: Application
    Filed: January 28, 2009
    Publication date: June 25, 2009
    Inventors: Aron Raklyar, Gennady Simkin, Efim Polishchuk, Alexsander Meisarosh
  • Patent number: 7415245
    Abstract: An ultrawideband radio frequency pulse is generated by shaping a carrier signal having a selected frequency with a window function. The shaped carrier is gated to produce the ultrawideband pulse. In further embodiments, the window function comprises a sinusoidal function, and the ultrawideband pulse is formed via a mixer and a CMOS radio frequency switch.
    Type: Grant
    Filed: March 31, 2004
    Date of Patent: August 19, 2008
    Assignee: Intel Corporation
    Inventors: Keith R Tinsley, Jeffery R Foerster, Minnie Ho, Evan R Green, Luiz M. Franca-Neto, Siva G. Narendra
  • Patent number: 7286030
    Abstract: The present invention relates to an electromagnetic relay comprising: a base comprising at least one printed circuit card, which card has at least two conductor tracks forming respective switch accesses; at least one conductive contact element movable between a closed position in which it presses against said two conductor tracks in order to establish an electrical connection between them, and an open position in which the contact element is spaced apart from at least one of said two tracks; a contact element support, the support comprising at least one flexible arm carrying the contact element; and an actuator mounted on the printed circuit card, and comprising at least one coil constituted by a winding of electric wires; wherein the support includes at least one portion, in particular a portion in the form of a tongue, on which a moving member of the actuator acts in order to move said flexible arm of the support.
    Type: Grant
    Filed: April 9, 2004
    Date of Patent: October 23, 2007
    Assignee: Radiall
    Inventors: Fabrice Janot, Patrice Becavin, Pascal Gonin
  • Patent number: 7109832
    Abstract: In one embodiment, a method for reducing signal noise in a relay having pass-through and attenuator circuits which are alternately closed by operation of an armature assembly of the relay is disclosed. In accordance with the method, the armature assembly is provided with a grounding portion. The grounding portion of the armature assembly is oriented to make contact with the pass-through circuit when the attenuator circuit is closed, but not when the pass-through circuit is closed.
    Type: Grant
    Filed: July 18, 2005
    Date of Patent: September 19, 2006
    Assignee: Agilent Technologies, Inc.
    Inventor: James A. Freeman
  • Patent number: 7015777
    Abstract: The present invention relates to a switch device for opening and closing at least one electrical line, the device comprising: at least one pair of contact terminals; at least one drive member each drive member including a contact piece suitable for being displaced axially between a closed position in which the contact piece presses simultaneously against the two contact terminals of said at least one pair, interconnecting them electrically, and an open position in which the contact piece is spaced apart from said two contact terminals; and at least one actuator comprising an actuator element that is movable and suitable for driving said drive member(s); at least one of the actuator element and the drive member being connected to a stationary portion of said device by means of a generally flexible holding element, which element has at least one region secured to said stationary portion of the device, and at least one region secured to the actuator element or the drive member, which region is suitable for fl
    Type: Grant
    Filed: March 25, 2003
    Date of Patent: March 21, 2006
    Assignee: Radiall
    Inventors: Pascal Gonin, Patrice Becavin, Jean-Pierre Charreton
  • Patent number: 6856212
    Abstract: A switch contact for use in a microwave switch. The contact comprises a probe contact member having a first contact region with a first surface, and a reed contact member having a second contact region with a second surface. The second surface is non-conformal with respect to the first surface for providing an incomplete mechanical contact when the contact members are in contact.
    Type: Grant
    Filed: December 16, 2002
    Date of Patent: February 15, 2005
    Assignee: Com Dev Ltd.
    Inventors: Regina Kwiatkowski, Mihai Vladimirescu, Terence J. Menezes
  • Patent number: 6853273
    Abstract: Disclosed herein is a relay having a first circuit, a second circuit, a ground, an electro-magnetic actuator assembly, and an armature assembly. The armature assembly is movable between first and second positions with respect to the first and second circuits, and is controlled by the electro-magnetic actuator assembly. Movement of the armature assembly to its first position allows current to flow through the first circuit. Movement of the armature assembly to its second position couples the first circuit to the ground and allows current to flow through the second circuit. The ground may be embodied in an extension of the armature assembly that contacts the first circuit when the armature assembly moves to its second position, or the ground may be embodied in a biased conductor that is moved into contact with the first circuit when the armature assembly moves to its second position.
    Type: Grant
    Filed: December 20, 2001
    Date of Patent: February 8, 2005
    Assignee: Agilent Technologies, Inc.
    Inventor: James A. Freeman
  • Patent number: 6795697
    Abstract: RF switches and methods of use are provided. In one embodiment, a RF switch includes first and second switch assemblies, each comprising an elongate member and a magnetic housing on an end of the member. The magnet is disposed between contact pads for first and second circuits, and an electromagnetic source is coupled to the assemblies. Each switch has a first and second state. Another RF switch of the present invention includes a rotor, an elongate member disposed centrally through the rotor, an actuator coupled to the member and configured to rotate the member and the rotor, and a contact on the rotor that may touch a substrate. The contact is used to complete a first path or a second path.
    Type: Grant
    Filed: July 5, 2002
    Date of Patent: September 21, 2004
    Assignee: Superconductor Technologies, Inc.
    Inventors: Elna R. Saito, Gregory L. Hey-Shipton, James R. Costa, Stacey M. Bilski
  • Publication number: 20040095216
    Abstract: A non-reciprocal circuit element includes a magnetic plate, a common electrode, a first main segment, a second main segment, a third main segment, and a magnet opposing to the magnetic plate and the magnet applying a bias magnetic field. The temperature coefficient of the saturation magnetization of the magnetic plate is from −0.2%/° C. to −0.1%/° C. in the temperature range from −35° C. to 85° C. The temperature coefficient of the residual magnetization of the magnet is from −0.20%/° C. to −0.15%/° C. in a temperature range from −35° C. to 85° C.
    Type: Application
    Filed: November 12, 2003
    Publication date: May 20, 2004
    Applicant: Alps Electric Co., Ltd.
    Inventors: Kinshiro Takadate, Hitoshi Onishi
  • Patent number: 6707356
    Abstract: An electro-mechanical relay including a substrate. A pass through circuit may be mounted on a first face of the substrate. An attenuator circuit may be mounted on a second face of the substrate. An armature assembly may be provided that is movable between first and second positions with respect to the substrate. The armature assembly when moved to its first position causes the pass through circuit to be coupled into a circuit. When moved to its second position, the armature assembly causes the attenuator circuit to be coupled into a circuit.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: March 16, 2004
    Assignee: Agilent Technologies, Inc.
    Inventor: James A Freeman
  • Patent number: 6650210
    Abstract: A relay switching device for switching high frequency signals has high reliability and stable insertion loss. The switching device has a housing with a base and a case. The case has a bore and the base has a slot. An electromagnet is mounted in the case. A reed holder has a pair of ends. One end of the reed holder is mounted in the bore adjacent the electromagnet. A pair of terminals are mounted in the base and extend into the slot. A guide member is mounted in the slot. A conductive reed is mounted to the other end of the reed holder. The reed is supported by the guide member and extends over the terminals. The electromagnet moves the reed between an open and closed position. The guide member prevents rotation of the reed as it moves between the open and closed positions.
    Type: Grant
    Filed: March 11, 2003
    Date of Patent: November 18, 2003
    Assignee: Scientific Components
    Inventors: Aron Raklyar, Iosif Royt
  • Patent number: 6639494
    Abstract: A MEMS switch with a bridge having three symmetric arms each having one end connected to a support arrangement and another end integral with a common central bridge portion. First and second conductors are deposited on a substrate, with the first conductor having an end with an open area which encompasses a pull down electrode which is also on the substrate, and of a height less than that of the conductor. A control voltage applied to the pull down electrode causes downward movement of the bridge, to present a relatively low impedance, thereby allowing a signal to propagate between the first and second conductors, without the bridge touching the pull down electrode. Each of the arms is slotted to reduce curl-induced stiffness.
    Type: Grant
    Filed: December 18, 2002
    Date of Patent: October 28, 2003
    Assignee: Northrop Grumman Corporation
    Inventor: Nathan Bluzer
  • Patent number: 6429758
    Abstract: The present invention is an RF electromechanical single pole single throw (SPST) switch providing a low loss path for RF signals in closed position and a high impedance path for RF signals in open position. The structure has two reed switches each having an actuator and two contacts with both reed switches electrically connected in parallel and mechanically attached such that one contact in each reed switch is grounded and the another contact connects to the actuators that are also connected together and to an RF input pin.
    Type: Grant
    Filed: December 4, 2001
    Date of Patent: August 6, 2002
    Assignee: Renaissance Electronics Corporation
    Inventors: Dean Emelo, Brian Alexander, Massimo M. Pellegrini
  • Patent number: 6340923
    Abstract: A high frequency relay comprises a contact base block having pairs of fixed contacts, contact members with movable contacts, and an electromagnet for moving the contact members to open and close the fixed contacts by the movable contacts. The contact base block comprises an injection-molded base having projections on its front surface, first metal films formed as the fixed contacts on top surfaces of the projections, second metal films formed as connection terminals for outside devices on a rear surface of the base, each of which corresponds to one of the first metal films, through holes each having a conductive material on its inner surface to make an electrical connection between one of the first metal films and the corresponding second metal film in the shortest distance, and a third metal film formed on the base to provide electrical isolation from the first and second metal films, which works as electromagnetic shield as well as a ground.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: January 22, 2002
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Hiroshi Yamanaka, Toshiyuki Suzuki, Kazunobu Nakata
  • Patent number: 6337612
    Abstract: The present invention provides a switch using solenoid comprising a base having a plurality of grooves formed thereon; a plurality of solenoids having an armature respectively, and being disposed on each of the grooves, wherein the armature is moved in upward and downward directions while an electric current flows into the solenoid; a plurality of connectors respectively disposed in the grooves; and a plurality of contact means for electrically connecting the predetermined number of the connectors disposed in each of the grooves, and being movably disposed in each of the grooves to be pressed by the armature moved in downward direction. Therefore, the number of parts and manufacturing cost of the switch in accordance with the present invention are reduced, and total size of the switch may be minimized.
    Type: Grant
    Filed: April 18, 2000
    Date of Patent: January 8, 2002
    Assignee: KMW Co., Ltd.
    Inventors: Duk-Yong Kim, Dong-Hwi Lee
  • Patent number: 6329891
    Abstract: A high frequency relay capable of effectively shielding a signal path, yet reducing a number of the parts forming the shield and the associated structure. The relay has a dielectric base mounting three fixed contacts arranged in a line and defined at upper ends of three contact terminals extending through the base. Two movable contact springs are utilized, each bridging the two adjacent fixed contacts for closing and opening a high frequency signal path between the two adjacent fixed contacts. Upstanding from the base is a pair of electromagnetic shield plates which define a shielded space therebetween for accommodating the three fixed contacts and the two movable contact springs. Each of the shield plates is configured to come into electrical contact with corresponding one of the movable contact springs moved in the contact opening position.
    Type: Grant
    Filed: November 22, 2000
    Date of Patent: December 11, 2001
    Assignee: Matsushita Electric Works, Ltd.
    Inventors: Tokatoshi Hayashi, Atsushi Nakahata, Takuji Yamashita, Hidetoshi Takeyama, Koji Sagawa, Tetsuya Yamada, Tomohiro Taguchi, Hisao Yabu
  • Publication number: 20010033212
    Abstract: A compact nonreciprocal circuit device in which a large amount of attenuation can be obtained at a predetermined frequency band without increasing cost. In the nonreciprocal circuit device, three central conductors are arranged to cross each other on a ferrite member to which a direct-current magnetic field is applied. An inductor is disposed at the bottom of a capacitor connected to a port of a first central conductor. The capacitor and the inductor constitute a series resonant circuit, by which a trap filter for signals passing through an isolator as the nonreciprocal circuit device is constituted. A resonance frequency of the series resonant circuit is set to be approximately twice the central frequency of a pass bandwidth of the isolator so that the second harmonic of a fundamental wave is attenuated. In addition, at the basic wave frequency, the series resonant circuit acts as capacitive impedance.
    Type: Application
    Filed: March 2, 2001
    Publication date: October 25, 2001
    Inventors: Katsuyuki Ohira, Takashi Hasegawa
  • Patent number: 6211756
    Abstract: An electromechanical relay (10) that includes a frame (52) and a header assembly (20) having a plurality of contacts (24, 26, 28). The relay (10) also includes a core assembly (62) having an end engaging the frame (52). The relay (10) further includes an armature assembly (64) pivotally connected to the core assembly (62). The armature assembly (64) has at least one actuator (76, 77) engaging one of the contacts (24, 26). The relay (10) also includes a shield (16) connected to the header assembly (20) and defining a cavity (84) in which the contacts (24, 26, 28) are disposed.
    Type: Grant
    Filed: November 6, 1998
    Date of Patent: April 3, 2001
    Assignee: Teledydne Industries, Inc.
    Inventors: Richard L. Sun, Given Chun, Ricardo E. Vallero
  • Patent number: 6204740
    Abstract: A coaxial relay is build up from a contact block and an electromagnet block. The contact block carries a plurality of coaxial connectors each composed of a core conductor and a shield conductor surrounding the core conductor. The core conductors extend into a shield chamber to define thereat respective coaxial contacts. At least one movable blade is disposed within the shield chamber for closing and opening the two adjacent coaxial contacts. The movable blade is provided with a dielectric actuator which projects on the top of the contact block and is engaged with a return spring secured to the contact block for urging the movable blade in a direction of opening the coaxial contacts. The electromagnet block carries at least one electromagnet and an armature which is engageable with the actuator when the electromagnet block is assembled to the contact block. The armature moves about a pivot axis from a first position of opening the coaxial contacts to a second position of closing the same.
    Type: Grant
    Filed: April 21, 2000
    Date of Patent: March 20, 2001
    Assignee: Matsushita Electric Works, Ltd.
    Inventor: Atsushi Nakahata
  • Patent number: 6133812
    Abstract: A multipole, multiposition switching relay is provided. The switching relay includes an electromagnetic drive coil having a spring-biased plunger slidably mounted therein. The plunger is operably connected to a switching apparatus for connecting and disconnecting terminals of coaxial connectors. The drive coil pulls the plunger into its hollow center when an electric current is applied to the drive coil. A magnet located near the drive coil creates a magnetic field which maintains the plunger in the drive coil after the electric current has been disconnected from the drive coil, and the switching relay will remain in the chosen state. A second drive coil may be provided which shunts, or reverses, the magnetic field, allowing the plunger to return to its original position due to the biasing force provided by the spring. Energizing the second drive coil automatically resets any previously selected position of the first drive coil to its original position.
    Type: Grant
    Filed: May 21, 1999
    Date of Patent: October 17, 2000
    Assignee: Relcomm Technologies, Inc.
    Inventor: Martin A. Magda
  • Patent number: 6124771
    Abstract: The present invention relates to a switch with a rocker, which has an affixed magnet, capable of being reliably opened or closed by a mechanical operation of a magnetized rocker. The present invention comprises of a supporting plate and a plurality of electromagnets occurring a magnetic force when a power is supplied thereto and being disposed in a bottom surface of the supporting plate. Further, the present invention has a rocker made of a magnetic substance, magnetized in order to occur repulsion with the electromagnet and then rotated by a predetermined angle. Furthermore, the present invention at least one magnet for magnetizing the rocker and retaining an inclined state of the rocker by the if occurred attraction with the electromagnet, and being disposed on the rocker.
    Type: Grant
    Filed: March 22, 1999
    Date of Patent: September 26, 2000
    Assignee: KMW Co. Ltd.
    Inventors: Duk Yong Kim, Dong Hwi Lee
  • Patent number: 6037849
    Abstract: A microwave switch comprising a connection assembly which has multiple positions and a drive assembly which places the connection assembly into a selected one of the positions at a time. The microwave switch may, for example, be a microwave T-switch or another type of microwave switch. The drive assembly includes an actuator plate which is mechanically coupled to reeds of the connection assembly and places the connection assembly into the selected position. During operation of the switch, a magnetic force of the permanent magnet is substantially the only holding force that holds the actuator plate in place in at least one direction. In another aspect, the drive assembly further comprises multiple movable links which mechanically couple arms of the actuator plate to various reeds. Each movable link comprises first and second generally flat members. Within each respective one of the movable links, the first member and second members are spaced by different amounts from the actuator plate.
    Type: Grant
    Filed: July 26, 1999
    Date of Patent: March 14, 2000
    Assignee: Delaware Capital Formation, Inc.
    Inventor: Krzysztof J. Ciezarek
  • Patent number: 6016092
    Abstract: Methods for the fabrication of miniature electromagnetic microwave switches are disclosed in this invention. In one embodiment, on a dielectric substrate, miniature electromagnetic switches for coplanar waveguide transmission lines are fabricated. In another embodiment, miniature electromagnetic microwave switches are fabricated for microstrip transmission lines. The miniature microwave switches are built on a dielectric substrate and are accompanied by miniature electromagnetic coils on the back of the substrate. The switch is controlled by regulating the dc current applied to the electromagnetic coil. A switch is ON when a dc controlling current is applied to the electromagnetic coil and is OFF when the controlling current is cut off. A reverse dc current may also be applied to the electromagnetic coil to repel the top electrode from the bottom electrode. The use of reverse current will prevent the possible sticking of the two electrodes, thus, reducing the switching time.
    Type: Grant
    Filed: August 10, 1998
    Date of Patent: January 18, 2000
    Inventors: Cindy Xing Qiu, Yi-Chi Shih, Lap Sum Yip
  • Patent number: 5952902
    Abstract: A coaxial "M" switch having three coaxial input connectors (A, B, C) spaced evenly from each other, and three coaxial output connectors (1, 2, 3) identically arranged. In a cylindrical barrel embodiment (10) the input and output connectors are located at opposite ends of a cylindrical configuration. In one planar embodiment (30), the input and output connectors alternate with each other and define a hexagonal configuration (40). In another planar embodiment, the input connectors (A, B, C) define an inner triangular configuration (70) that is surrounded by the output connectors (1, 2, 3) defining an outer triangular configuration. In each embodiment, reeds are actuated in predetermined configurations to define three switch positions.
    Type: Grant
    Filed: March 12, 1999
    Date of Patent: September 14, 1999
    Inventors: Rolf Kich, Richard L. Bennett, David M. Kershner, James D. Thompson
  • Patent number: 5894255
    Abstract: The present disclosure is directed to a relay. The relay includes a frame and a header seal assembly base having contacts and a return spring. The relay also includes an armature assembly which engages the return spring. The armature assembly has at least one actuator. The relay further includes a core assembly located on the armature assembly. The core assembly has an end engaging the frame. The relay also includes a coil shim having a cutout section. The coil shim is connected to the frame and the cutout section engages the armature assembly when the relay is in the de-energized state. The coil shim has an opening for accepting the core assembly. The relay also includes a coil engaging the coil shim. The coil has an opening for accepting the core assembly.
    Type: Grant
    Filed: May 6, 1998
    Date of Patent: April 13, 1999
    Assignee: Allegheny Ludlum Corporation
    Inventor: James M. Wallintin
  • Patent number: 5838218
    Abstract: A waveguide switch is provided in which energy such as ultrasonic optical, electromagnetic or infrared waves travel in a first waveguide having fixed length formed in a first member connected to a second member having multiple waveguides of varying lengths which may be rotatably mounted to the first waveguide in order that upon rotation of the first or second member, different waveguides may be aligned to form an overall position identifying waveguide of varying lengths in order to provide a means for controlling a component attached to the switch. A transmitter and a receiver are mounted within the waveguide and connected to a detector in order to convert the time-of-flight data of the waves to an electrical signal.
    Type: Grant
    Filed: November 25, 1996
    Date of Patent: November 17, 1998
    Assignee: Methode Electronics, Inc.
    Inventors: Lawrence T. Rupert, William F. Swisher, Theodore P. Kill
  • Patent number: 5815049
    Abstract: A dual switch for coupling a waveguide microwave switch to a coaxial microwave switch. The waveguide microwave switch has a waveguide hollow member and a waveguide rotating section rotatably mounted about a rotational axis within the waveguide hollow member at one end. The coaxial microwave switch has a coaxial hollow member adjacent to the one end of the waveguide hollow member and a coaxial rotating section rotatably mounted within the coaxial hollow member about an axis coaxial with the rotational axis. The waveguide microwave switch is coupled to the coaxial microwave switch by at least one set of cooperating magnets fastened at a given radial distance from the rotational axis to the waveguide rotating section and the coaxial rotating section respectively, such that any rotation of the waveguide rotating section about the rotational axis will be followed by a corresponding rotation about the rotational axis of the coaxial rotating section.
    Type: Grant
    Filed: March 10, 1997
    Date of Patent: September 29, 1998
    Inventor: Guido G. Cappelli
  • Patent number: 5815057
    Abstract: An electromagnetic switching device for controlling the flow of electrical current between a plurality of pins. The switching device includes a base, an input pin, first and second output pins, a reed, an actuator, a magnetic field generator, and generator pins. The reed and actuators are movable between a first position which electrically couples the first output pin and the input pin, and a second position which electrically couples the second output pin and the input pin. Dielectric compatible plastic material with enhanced shielding characteristics is located in apertures in the base to structurally retain the pins therein. The actuator further includes a center body portion, an arm integrally molded with the center body portion extending generally laterally outward therefrom, and a finger depending downwardly from the arm. The finger is structurally coupled to the movable reed to move the reed between its first and second positions.
    Type: Grant
    Filed: May 17, 1996
    Date of Patent: September 29, 1998
    Assignee: K & L Microwave Incorporated
    Inventors: Jerzy Hoffman, John L. Wenger
  • Patent number: 5748055
    Abstract: The invention is directed to a microwave switch comprising a switch housing having side walls in which wave guide terminals are provided, and a switch rotor carried by a shaft which is mounted in bearings in said switch housing and being rotatable between switch positions defined by stop means limiting the rotation of said switch rotor a maximum of 180.degree., and an electromagnetic driving device having a permanent magnetic rotor part fixed directly onto the shaft of the switch rotor and having diametrically positioned magnetic poles of opposite polarities, and a stator part having an electric driving coil arranged on a magnetic yoke which is connected with two poles shoes, said stop means comprising a stop element on said switch rotor and impact elements provided in said switch housing.
    Type: Grant
    Filed: December 30, 1996
    Date of Patent: May 5, 1998
    Assignee: Sivers Lab Aktiebolag
    Inventor: Goran Ors
  • Patent number: 5724014
    Abstract: A latching electromagnetic RF switch is provided with an armature having a permanent magnet mounted thereon. An electromagnetic coil surrounding the armature has a ferromagnetic member mounted opposite the armature. A spring holds the permanent magnet away from the ferromagnetic member, latching the switch in a first position. In a second position, the permanent magnet attracts the ferromagnetic member and holds the armature against the force of the spring latching the switch.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: March 3, 1998
    Assignee: The Narda Microwave Corporation
    Inventors: Vincent Leikus, Yuly Bauer
  • Patent number: 5699030
    Abstract: An electromagnetic relay, such as an electromechanical RF switch, which is operated by an electromagnetic coil, is provided with an indicating circuit which responds to the position of the electromagnetic armature as well as the application of driving current to the coil. A magnetically activated reed switch is mounted adjacent to the electromagnetic coil at a distance selected so that the magnetic field of the coil will operate the reed switch when current is applied to the coil and the armature is driven into a position closing a magnetic circle.
    Type: Grant
    Filed: April 4, 1996
    Date of Patent: December 16, 1997
    Assignee: The Narda Microwave Corporation
    Inventors: Vincent Leikus, Yuly Bauer