Convertible To Different Antennas Patents (Class 343/724)
  • Patent number: 10014591
    Abstract: An antenna is provided and includes a base antenna component, a loop antenna component, a first coupling by which the loop antenna component is pivotally attached to and selectively electrically communicative with the base antenna component, a whip antenna component, a second coupling by which the whip antenna component is pivotally attached to and selectively electrically communicative with the loop antenna component; and a transmission/reception (T/R) module. The T/R module is disposable in signal communication with at least one or more of the base, loop and whip antenna components.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: July 3, 2018
    Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Hyman D. Chantz
  • Patent number: 9923267
    Abstract: Apparatuses and methods for making configurable antennas are provided. An apparatus can include a phase change material (PCM) having a conductive phase and an insulating phase. The PCM can be activated to the conductive phase to produce an antenna structure. Different antenna shapes can be created by selectively inducing regions in the PCM to be conductive. Different antenna shapes can be produced having specific resonance frequencies and radiation patterns to suit the application. The PCM phase change can be induced using selective heat application.
    Type: Grant
    Filed: July 19, 2017
    Date of Patent: March 20, 2018
    Assignee: The Florida International University Board of Trustees
    Inventors: Nezih Pala, Burak Gerislioglu, Arash Ahmadivand, Mustafa Karabiyik
  • Patent number: 9866262
    Abstract: A wireless transceiving device is proposed. The wireless transceiving device includes a transmitting circuit, a receiving circuit and an auxiliary receiving circuit. The transmitting circuit includes a signal transceiving circuit. The receiving circuit includes the signal transceiving circuit. The auxiliary receiving circuit is coupled to the receiving circuit and includes an auxiliary antenna. When the receiving circuit receives a signal via the signal transceiving circuit, the auxiliary receiving circuit assists the receiving circuit to receive the signal via the auxiliary antenna.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: January 9, 2018
    Assignee: ZyXEL communications Corp.
    Inventor: Lu-Wei Chiang
  • Patent number: 9849322
    Abstract: An infrastructure monitoring assembly includes a housing mountable on a fire hydrant of an infrastructure system; and a sensor coupled to the housing, the sensor configured to sense at least one condition of a fluid within the infrastructure system. An infrastructure monitoring system includes a fire hydrant of an infrastructure system; a housing mountable on the fire hydrant of the infrastructure system; and a sensor coupled to the housing, the sensor configured to sense at least one condition of a fluid within the infrastructure system.
    Type: Grant
    Filed: September 9, 2015
    Date of Patent: December 26, 2017
    Assignee: Mueller International, LLC
    Inventors: Gregory E. Hyland, Robert Paul Keefe, Marietta Edmunds Zakas, Clayton Robert Barker
  • Patent number: 9559408
    Abstract: An antenna device capable of using an existing external antenna as a diversity antenna is disclosed. The disclosed antenna device includes: a radiator configured to be extensible to the outside of a terminal; a feeding switch configured to perform a switching operation for connecting one of a plurality of feeding units to the radiator; at least one conductive line of which a first end coming into contact with a part of the radiator when the radiator is inserted into the inside of the terminal; and at least one ground switch coupled to the at least one conductive line and configured to switch a connection between a second end of the conductive line and the ground. In accordance with the disclosed antenna device, it is possible to use an existing external antenna as a diversity antenna without installing an additional antenna.
    Type: Grant
    Filed: November 22, 2013
    Date of Patent: January 31, 2017
    Assignee: ACE TECHNOLOGIES CORPORATION
    Inventor: Byoung-Nam Kim
  • Publication number: 20150109175
    Abstract: A re-reconfigurable built-in antenna of a portable terminal is provided. The antenna includes an antenna radiator having a feeding pad electrically connected to a feeding portion of a main board of the terminal and at least one ground pad disposed in a position different from that of the feeding pad for selectively establishing an electrical connection to a ground portion of the terminal, and a switching element, commonly connected to the at least one ground pad of the antenna radiator, for selectively establishing an electrical connection to the ground portion by a switching operation. The antenna radiator changes a shape of the antenna radiator by using the selective electrical connection of the ground portion so as to have various operational frequency bands and radiation properties.
    Type: Application
    Filed: December 24, 2014
    Publication date: April 23, 2015
    Inventors: Jin-U KIM, Austin KIM, Dong-Hwan KIM, Jae-Ho LEE, Jung-Ho PARK
  • Patent number: 8989289
    Abstract: A method and system for transmitting three distinct electromagnetic signals on a same frequency are provided. One or more transmitting devices transmit a first data signal and an inverse of the first data signal in two orthogonal linear polarities of an antenna maintaining their inverted phase relationship and a same amplitude as propagated. Transmitting devices also transmit a second data signal in a linear polarity with a 45 degree rotation around the transmit axis of the first data signal. Transmitting devices also transmit a third data signal in linear polarity orthogonal to the second data signal and consequently 315 degree rotation around the transmit axis from the first data signal.
    Type: Grant
    Filed: October 28, 2013
    Date of Patent: March 24, 2015
    Inventor: Nigel Iain Stuart Macrae
  • Publication number: 20150015445
    Abstract: System and method embodiments are provided for capacitive coupled loop inverted F reconfigurable multiband antenna. The embodiments enable tuning and adjustment of the low frequency response of the antenna without appreciably effecting the high frequency response of the antenna. In an embodiment, a reconfigurable multiband antenna includes a first antenna section comprising a first end and a second end, wherein the second end is coupled to an antenna feed, a second antenna section comprising a third end and a fourth end, wherein the third end is coupled to ground, and a switch coupling the second end to the third end, wherein the first end and the fourth end are capacitively coupled.
    Type: Application
    Filed: July 11, 2013
    Publication date: January 15, 2015
    Inventor: Jorge Fabrega Sanchez
  • Publication number: 20150002348
    Abstract: A communication device including a ground element and an antenna element is provided. The antenna element is disposed adjacent to an edge of the ground element, and a loop structure is formed by the antenna element and the edge of the ground element. The antenna element includes a first and a second metal portions. The first metal portion has a first and a second ends. The first end is a first feeding point of the antenna element and connected to a communication module through a capacitive element. The second metal portion has a third end connected to the second end through a first switch and a fourth end connected to the ground element through a shorting metal portion. The second metal portion further has a second feeding point connected to the communication module through a second switch and disposed away from the third end and close to the fourth end.
    Type: Application
    Filed: November 5, 2013
    Publication date: January 1, 2015
    Applicant: Acer Incorporated
    Inventors: Kin-Lu Wong, Meng-Ting Chen
  • Patent number: 8884837
    Abstract: An antenna module includes an antenna body, a signal feeding element and a conducting element. The signal feeding element is mounted on the antenna body, and the antenna body can move between a first position and a second position relative to the signal feeding element. When the antenna body is at the first position, the antenna body contacts and conducts with the conducting element to form a loop. When the antenna body is at the second position, the antenna body does not contact with the conducting element. In an embodiment, antenna receives signal well in both position.
    Type: Grant
    Filed: August 29, 2011
    Date of Patent: November 11, 2014
    Assignee: ASUSTeK Computer Inc.
    Inventors: Chia-Hao Chang, Min-Jui Huang
  • Patent number: 8862072
    Abstract: A tuning circuit disposed between an antenna and wireless network interface card selectively adjusts transmissions from the antenna to plural frequency bands, each band associated with wireless signals of a wireless network provider. A direct current bias selectively applies to tuning circuit analog components to adjust the frequency band as desired to support communication for a selected wireless provider.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: October 14, 2014
    Assignee: Dell Products L.P.
    Inventors: Sripathi Yarasi, Liam B. Quinn
  • Patent number: 8823219
    Abstract: Exemplary embodiments are directed to device for selectively forming an open loop antenna or a closed loop antenna. A device may include a wireless power receiver and a receive antenna operably coupled to the wireless power receiver and having a portion for selectively forming an open loop antenna or a closed loop antenna.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: September 2, 2014
    Assignee: QUALCOMM Incorporated
    Inventor: Shahin Farahani
  • Patent number: 8792937
    Abstract: A computing device with a configurable antenna. The antenna is configured through a switching circuit operating under software control. Operating characteristics of the antenna are configured based on connections between conducting segments established by the switching circuit, allowing the nominal frequency, bandwidth or other characteristics of the antenna to be configured. Because the switching is software controlled, the configurable antenna may be integrated with a software defined radio. The radio and antenna can be reconfigured to support communication according to different wireless technologies at different times or to interleave packets according to different wireless technologies to support concurrent sessions using different wireless technologies.
    Type: Grant
    Filed: December 4, 2012
    Date of Patent: July 29, 2014
    Assignee: Microsoft Corporation
    Inventors: Amer A. Hassan, Christian Huitema
  • Publication number: 20140187174
    Abstract: An apparatus comprising a first dipole antenna, a beamforming antenna array (BFAA), a first switch coupled to the dipole antenna, a second switch coupled to the BFAA, and a processor coupled to the first switch and the second switch, wherein the processor is configured to select between a multi-input, multi-output (MIMO) antenna configuration and a beamforming configuration by setting the states of the first switch and the second switch.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 3, 2014
    Applicant: FUTUREWEI TECHNOLOGIES, INC.
    Inventors: Saeid Safavi, Dedi D. Haziza
  • Patent number: 8754821
    Abstract: A multi-band antenna includes a feed-in section, a loop conductor, a first conductor arm, a second conductor arm, and a third conductor arm. The feed-in section includes a feed-in point for feeding of signals. The loop conductor extends from the feed-in section and has a grounding point disposed adjacent to the feed-in point. The first conductor arm is configured to resonate in a first frequency band and extends from the feed-in section. The second conductor arm is configured to resonate in a second frequency band and extends from the feed-in section. The third conductor arm is configured to resonate in a third frequency band and extends from the feed-in section. At least one of the loop conductor, the first conductor arm, the second conductor arm, and the third conductor arm is bent so as to be disposed in different planes.
    Type: Grant
    Filed: June 1, 2011
    Date of Patent: June 17, 2014
    Assignee: Quanta Computer Inc.
    Inventors: Ying-Chih Wang, Ling-Chen Wei, Tsung-Ming Kuo
  • Publication number: 20140145889
    Abstract: An antenna device capable of using an existing external antenna as a diversity antenna is disclosed. The disclosed antenna device includes: a radiator configured to be extensible to the outside of a terminal; a feeding switch configured to perform a switching operation for connecting one of a plurality of feeding units to the radiator; at least one conductive line of which a first end coming into contact with a part of the radiator when the radiator is inserted into the inside of the terminal; and at least one ground switch coupled to the at least one conductive line and configured to switch a connection between a second end of the conductive line and the ground. In accordance with the disclosed antenna device, it is possible to use an existing external antenna as a diversity antenna without installing an additional antenna.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 29, 2014
    Applicant: ACE TECHNOLOGIES CORPORATION
    Inventor: Byoung-Nam Kim
  • Patent number: 8723738
    Abstract: A mobile terminal includes a first housing, a second housing, and a connection section. A first antenna that resonates at a prescribed wavelength is arranged in the first housing. A first conductive section is arranged in the second housing. The connection section connects the first housing and the second housing so as to transit between an open state, in which the first housing and the second housing are open, and a closed state, in which the first housing and the second housing are closed. The first conductive section includes a first section formed at a length corresponding to the prescribed wavelength, and a high-impedance section that is arranged on the end of the first section and has a higher impedance than the first section.
    Type: Grant
    Filed: March 25, 2011
    Date of Patent: May 13, 2014
    Assignee: KYOCERA Corporation
    Inventor: Yoshiaki Hiraoka
  • Patent number: 8659480
    Abstract: A frequency reconfigurable antenna may include at least two antenna segments and a photonic crystal positioned between the at least two antenna segments. The photonic crystal may selectably electrically connect or isolate the at least two antenna segments with respect to each other based on a conductive state of the photonic crystal.
    Type: Grant
    Filed: May 5, 2010
    Date of Patent: February 25, 2014
    Assignee: The Boeing Company
    Inventor: Donald Frank Wilkins
  • Patent number: 8605807
    Abstract: A method and system for transmitting electromagnetic signals are provided. Data signals including a first data signal conveying first data, a second data signal conveying second data, and a third data signal conveying third data are provided. One or more transmitting devices transmit the first data signal and an inverse of the first data signal in two orthogonal linear polarities of an antenna maintaining their inverted phase relationship as propagated. Transmitting devices also transmit the second data signal in a linear polarity with a 45 degree rotation around a transmit axis of the first data signal. Transmitting devices also transmit the third data signal in a linear polarity orthogonally from the second data signal and consequently ±45 degrees from the first data signals. One or more receiving stations receive the transmitted first data signal, the inverse of the first data signal, the second data signal and the third data signal.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: December 10, 2013
    Inventor: Nigel Iain Stuart Macrae
  • Publication number: 20130241782
    Abstract: An antenna device in a wireless communication includes antenna wires of four sides which include three feeding points and have a loop structure and four main switches which are located among the antenna wires of the four sides, wherein the antenna device operates as a loop antenna when the antenna wires of the four sides are connected according to operations of the main switches and wherein the antenna device operates as dipole antennas when the antenna wires of the four sides are disconnected according to operations of the main switches.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 19, 2013
    Applicants: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY, SAMSUNG ELECTRONICS CO., LTD
    Inventors: Duck-Dong Hwang, Chul-Soon Park, In-Sang Song, Inn-Yeal Oh, Chae-Jun Lee
  • Publication number: 20130069836
    Abstract: A wireless communication apparatus that includes a first antenna section having a first power feed point; a second antenna section having a second power feed point; a first electrically conductive plate extending between the first antenna section and the second antenna section; a second electrically conductive plate disposed substantially in parallel with the first electrically conductive plate and extending between the first antenna section and the second antenna section; and a short-circuiting member that electrically short-circuits the first electrically conductive plate and the second electrically conductive plate to each other such that a slit is formed by a part of a periphery of the first electrically conductive plate and a part of a periphery of the second electrically conductive plate.
    Type: Application
    Filed: July 3, 2012
    Publication date: March 21, 2013
    Applicant: Sony Mobile Communications Japan, Inc.
    Inventor: Akihiro BUNGO
  • Patent number: 8270907
    Abstract: Aspects of a method and system for matching an integrated system to an antenna utilizing on-chip measurement of reflected signals are provided. In a chip comprising at least a portion of a receiver and at least a portion of a transmitter, a best impedance match between an antenna and the chip may be determined based on on-chip measurement of one or more signals reflected from the antenna. The best impedance match between the antenna and the chip may be determined utilizing a correction algorithm. The correction algorithm may be determined utilizing data from an external test set that measures signals transmitted by the chip via the antenna. The reflected signals may be routed to a signal analyzer via on on-chip directional coupler. The best impedance match may be determined for each of a plurality of frequencies and/or each of a plurality of transmit signal strengths.
    Type: Grant
    Filed: April 5, 2011
    Date of Patent: September 18, 2012
    Assignee: Broadcom Corporation
    Inventor: Thomas Baker
  • Publication number: 20120050116
    Abstract: An antenna module includes an antenna body, a signal feeding element and a conducting element. The signal feeding element is mounted on the antenna body, and the antenna body can move between a first position and a second position relative to the signal feeding element. When the antenna body is at the first position, the antenna body contacts and conducts with the conducting element to form a loop. When the antenna body is at the second position, the antenna body does not contact with the conducting element. In an embodiment, antenna receives signal well in both position.
    Type: Application
    Filed: August 29, 2011
    Publication date: March 1, 2012
    Inventors: Chia-Hao CHANG, Min-Jui Huang
  • Patent number: 7925220
    Abstract: Aspects of a method and system for matching an integrated FM system to an antenna utilizing on-chip measurement of reflected signals are provided. In this regard a portion of a signal output by an integrated FM radio transmit block and reflected by an antenna may be routed to an on-chip signal analyzer. Accordingly, measurements of the reflected signals may be utilized to configure a matching network in order to provide a best impedance match between the FM radio and the antenna. In this regard, a best impedance match may maximize radiation efficiency and/or radiated power. Additionally, the configuration of the matching network may incorporate a correction algorithm/offset experimentally determined via a calibration utilizing external components.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: April 12, 2011
    Assignee: Broadcom Corporation
    Inventor: Thomas Baker
  • Patent number: 7917115
    Abstract: Methods and systems for auto detecting and auto switching antennas in a multi-antenna FM transmit/receive system are disclosed and may include detecting when an external antenna may be coupled to an external port of the wireless device and utilizing the external antenna for transmitting and/or receiving FM signals. The decoupling of an external antenna from an external port may be detected, which may cause the FM radio transmitter/receiver to be configured to transmit and/or receive FM signals utilizing antennas internal to the wireless device. One or more test signals, which may include AC signals, may be generated within the chip for detecting whether an external antenna may be coupled to an external port. A reflected signal from an external port may be measured and compared to a prestored value corresponding to a reflection due to an open circuit at the one or more external ports of the wireless device.
    Type: Grant
    Filed: August 1, 2007
    Date of Patent: March 29, 2011
    Assignee: Broadcom Corporation
    Inventor: Thomas Baker
  • Patent number: 7916096
    Abstract: A system and a method for configuring a communication system are provided. The communication system has an antenna system with a 3-D antenna grid. The configurable 3-D antenna grid has a plurality of antenna elements operably coupled to a plurality of switching elements. The method includes selecting a first 3-D antenna configuration associated with the configurable 3-D antenna grid from a plurality of antenna configurations. The method further includes controlling a memory device to output first data corresponding to the first 3-D antenna configuration. The method further includes closing selected ones of the plurality of switching elements to obtain the first 3-D antenna configuration in the configurable 3-D antenna grid in response to the first data. The first 3-D antenna configuration is one of the plurality of antenna configurations wherein at least a portion of the plurality of antenna elements are electrically coupled together.
    Type: Grant
    Filed: June 21, 2007
    Date of Patent: March 29, 2011
    Assignee: Delphi Technologies, Inc.
    Inventor: Andrzej M. Pawlak
  • Patent number: 7852272
    Abstract: The present invention provides an antenna apparatus for a wireless unit, the antenna apparatus exhibiting a reduced specific absorption rate (SAR) without an additional component for reducing the SAR, which is the amount of energy of an electromagnetic wave absorbed by a human body.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: December 14, 2010
    Assignee: Panasonic Corporation
    Inventors: Daigo Imano, Hironori Kikuchi
  • Patent number: 7760150
    Abstract: An object of the invention is to provide an antenna apparatus whose directional characteristic can be switched 90 degrees conforming to the communication mode at the same time as the frequency band can be switched in response to the communication mode for application to a multiband radio for covering different communication modes such as voice communications and data communications, and a radio using the antenna apparatus. An antenna apparatus 1 of the invention includes linear radiator 2, 3; a first linear director 4; and first and second linear conductors 5 and 6 connected at one end to the radiator 2, 3and at an opposite end to the first director 4 through switches 7.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: July 20, 2010
    Assignee: Panasonic Corporation
    Inventor: Junji Sato
  • Publication number: 20100117913
    Abstract: Provided is an antenna for a base station and a repeater capable of electrically or mechanically controlling the individual operation of an element antenna constituting an array antenna or a sub-array antenna so as to adaptively cope with the change in the communication environment, and having an economic and high performance transmitting and receiving function, and a method of controlling a mode of the antenna. The multi-mode antenna includes a radiation portion having one or more array antenna and capable of selectively changing an antenna effective opening surface and changing a resistance direction of an antenna beam pattern, an active channel portion connected to the array antennas and including switches, transmission and receiving channels, and a signal combiner and splitter, and a modem and control portion connected to the active channel portion and having a control portion and a modem.
    Type: Application
    Filed: March 5, 2008
    Publication date: May 13, 2010
    Applicant: Electronics and Telecommunications Research Instutite
    Inventor: Young-Bae JUNG
  • Patent number: 7696940
    Abstract: A wireless networking adapter that incorporates a Yagi-style directional antenna preferably includes at least one driver element positioned between a reflector element and at least two director elements. Another embodiment of the invention comprises a wireless access point having Yagi-style antenna that includes a driver that is adapted to rotate between a first position, in which the driver is in phase with the reflector an at least two directors, and a second position, in which the driver out of phase with a reflector and at least two directors.
    Type: Grant
    Filed: May 4, 2006
    Date of Patent: April 13, 2010
    Assignee: HField Technologies, Inc.
    Inventor: Curtis MacDonald
  • Publication number: 20100013720
    Abstract: When first and second housings are in an open state, first and second switches are electrically opened, and thus, a first antenna element and a ground conductor operate as a first dipole antenna, and a second antenna element and the ground conductor operate as a second dipole antenna with isolation from the first dipole antenna by the slit. When the first and second housings are in the closed state, the first and second switches are electrically closed, and thus, the first antenna element operates as a first inverted F antenna on the ground conductor, and the second antenna element operates as a second inverted F antenna on the ground conductor with isolation from the first inverted F antenna by the slit.
    Type: Application
    Filed: July 17, 2009
    Publication date: January 21, 2010
    Inventors: Tsutomu SAKATA, Atsushi Yamamoto, Satoru Amari
  • Publication number: 20080316127
    Abstract: A system and a method for configuring a communication system are provided. The communication system has an antenna system with a 3-D antenna grid. The configurable 3-D antenna grid has a plurality of antenna elements operably coupled to a plurality of switching elements. The method includes selecting a first 3-D antenna configuration associated with the configurable 3-D antenna grid from a plurality of antenna configurations. The method further includes controlling a memory device to output first data corresponding to the first 3-D antenna configuration. The method further includes closing selected ones of the plurality of switching elements to obtain the first 3-D antenna configuration in the configurable 3-D antenna grid in response to the first data. The first 3-D antenna configuration is one of the plurality of antenna configurations wherein at least a portion of the plurality of antenna elements are electrically coupled together.
    Type: Application
    Filed: June 21, 2007
    Publication date: December 25, 2008
    Inventor: Andrzej M. Pawlak
  • Patent number: 6600901
    Abstract: The mobile phone (1) has an antenna arrangement (5) for radiating different radiation patterns (30, 35, 40) according to an actual operation mode of the mobile phone (1). The different radiation patterns include two radiation patterns that avoid introducing radiation into the head of a user during an active telecommunications connection. At least two operation modes of the mobile phone (1) are assigned to a different radiation patern respectively. During an active operation mode, the assigned radition pattern is selected and activated. A change between the operation mode causes switching between the assigned radiation patterns. In a preferred embodiment the radiation pattern is omindirectional (30) during an idle mode, is directional (35) during active telecomunications connections and is approximately omindirectional with a preferential direction (40) during other active telecommunications connections in which control signal are exchanged.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: July 29, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Leif Koehne, Per D. Pedersen, Pia Thomsen, Ole Jagielski
  • Publication number: 20020151291
    Abstract: A ferro-electric tunable duplexer is provided, integrated with one or more of the following parts: a power amplifier, an isolator, a diplexer, a low noise amplifier and an antenna matching circuit. More specifically, in addition to adding F-E tunability, one or more of the above components is integrated with the duplexer on one substrate. The components are integrated on one substrate either by placing each component, with the appropriate matching circuit directly on the substrate, or by direct fabrication of the component and matching circuit into or onto the substrate.
    Type: Application
    Filed: February 12, 2002
    Publication date: October 17, 2002
    Inventor: Stanley S. Toncich
  • Patent number: 6380898
    Abstract: The present invention is a dual mode antenna. The antenna of the invention connects in an inverted-F feed when in a retracted position, and in a monopole feed in an extended position. The antenna mounts adjacent a relatively large ground plane, such as a grounding shell or EMI shield included in a laptop computer display, for example. A preferred antenna includes an elongate radiator mounted in a non-conductive housing to permit retraction and extension of the elongate radiator. The housing includes electrical contact points that form an inverted-F feed antenna connection to the elongate radiator when the elongate radiator is in a retracted position. The electrical contact points form a monopole feed antenna connection to the elongate radiator when the elongate radiator is in an extended position.
    Type: Grant
    Filed: August 3, 2000
    Date of Patent: April 30, 2002
    Assignee: Amphenol - T&M Antennas
    Inventors: Thomas G. Moore, Richard Kaisner
  • Publication number: 20010022559
    Abstract: An antenna includes a radiation conductor unit constructed with a plurality of radiation conductors having different lengths which extend in parallel to each other from an electricity-supplying conductor and a grounded conductor unit which opposes said plurality of radiation conductor in an approximately parallel manner with a predetermined distance therebetween. The radiation conductor unit and the grounded conductor unit are contained in an insulating casing constructed by a pair of cases which is fixed to each other. The casing is provided with a plurality of projections for positioning the radiation conductor unit and the grounded conductor unit.
    Type: Application
    Filed: March 1, 2001
    Publication date: September 20, 2001
    Applicant: Alps Electrtic Co., Ltd.
    Inventors: Toshiyuki Takahashi, Tomoki Ikeda
  • Patent number: 5905467
    Abstract: A wireless communication terminal comprises a first housing section including an antenna for enabling wireless communications with the terminal and a second housing section including a second communications antenna, the second housing section being extendibly connected to the first housing in an manner such that when the second housing section is in its extended position the second antenna is located one half wavelength from the first antenna. One or both of the antennas may be a fixed type, e.g., a whip or stub, or a retractable type, e.g., telescoping. The antennas may be located external or may be internal (e.g., patch type antennas) to the housing sections.
    Type: Grant
    Filed: July 25, 1997
    Date of Patent: May 18, 1999
    Assignee: Lucent Technologies Inc.
    Inventors: Shankar Narayanaswamy, Markus Rupp
  • Patent number: 5703602
    Abstract: A small, collapsible, high-gain, dipole antenna and a method to make the antenna. The present invention provides a collapsible half-wavelength dipole antenna for use in a portable device, the antenna having a fully collapsed position and a fully extended position. The antenna includes a static dipole arm, and a movable dipole arm. The movable dipole arm is capable of being moved to the fully collapsed position and the fully extended position. The antenna also includes a balun feed assembly electrically coupled to the static dipole arm and to the movable dipole arm. The antenna is capable of transmitting and receiving electrical signals in either the fully collapsed position or the fully extended position. The balun feed assembly is fixed to the static dipole arm, and the movable dipole arm is movably coupled to the balun feed assembly.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: December 30, 1997
    Assignee: Metricom, Inc.
    Inventor: Matthew Phillip Casebolt
  • Patent number: 5504495
    Abstract: A convertible antenna system for enabling immediate installation of an antenna for continuing the broadcasting of conventional signals in the currently available channel ranges, but which allows for eventual convertibility to HDTV (high definition television) operation. Thus, field convertibility adjustments or modifications are made to the initially installed system after the point in time at which a channel has been assigned for HDTV broadcasting. Such channel assignment is in one of a number of possible frequency spectrum locations such as a channel adjacent to the conventional broadcast channel, or a significantly removed VHF channel, or even a UHF channel. The field adjustments can simply involve coupling or decoupling lines and associated components, or can include replacing an antenna portion.
    Type: Grant
    Filed: September 17, 1993
    Date of Patent: April 2, 1996
    Assignee: General Signal Corporation
    Inventor: Oded Bendov
  • Patent number: 4992799
    Abstract: An antenna with a first and second portions (16 and 18) that are rotatably movable with respect to each other. The antenna may be rotated from a first position to a second position and from the second position to the first position so that it operates as two antennas while in the first position and as a loop antenna while in the second position.
    Type: Grant
    Filed: September 28, 1989
    Date of Patent: February 12, 1991
    Assignee: Motorola, Inc.
    Inventor: Oscar M. Garay
  • Patent number: 4313119
    Abstract: A dual mode antenna for a miniature radio transceiver includes a low profile loop antenna structure while mounted on a body and a high efficiency dipole antenna while held in the hand.
    Type: Grant
    Filed: April 18, 1980
    Date of Patent: January 26, 1982
    Assignee: Motorola, Inc.
    Inventors: Oscar M. Garay, Kazimierz Siwiak