Physical Structure Patents (Class 333/140)
-
Patent number: 5030931Abstract: A flexible laminated delay line assembly formed to include a plurality of patterned regions which may be folded into sandwiched relation to one another without affecting electrical continuity. The transmission line layer is laminated between successively adjacent dielectric and ground plane layers. Windows cut into the ground plane and dielectric layers facilitate folding and decoupling of a support spine, folding of the conductor sections and sizing of the assembly. In one construction, the dielectric layers comprise a flexible insulative substrate laminated between upper and lower thermoset layers. In another construction the dielectric layers comprise a polyetherimide that is melt flowed about the pathways of the transmission line.Type: GrantFiled: May 16, 1989Date of Patent: July 9, 1991Assignee: Thin Film Technology CorporationInventors: Mark Brooks, J. Paul Ozawa, Gary L. Seibel
-
Patent number: 5030932Abstract: This electromagnetic delay line is formed by disposing a ground electrode on one surface of a thin dielectric layer and serially connecting main electroconductive strips which are arranged in parallel at certain intervals on the opposite surface of the dielectric layer to form a zigzag strip to face the ground electrode and further, each main electroconductive strip itself is folded to be configured. Accordingly, the negative coupling produced in the zigzag strip is decreased and dispersed as well, thus improving the delay characteristics for the ultra-high frequency signal.Type: GrantFiled: July 5, 1989Date of Patent: July 9, 1991Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4967172Abstract: Disclosed are microwave phase shifter circuits which achieve phase shifts of elementary values and of whole number multiples of the values. The phase shifter circuit is made by utilizing of strip lines arranged in candlestick form on one face of a substrate and a slot line arranged on the other face. The length of the branches of the candlestick differ by b/4, b being the wavelength, and the ends of the branches are short-circuited or not short-circuited by utilizing of diodes which can be forward biased or reverse biased.Type: GrantFiled: March 28, 1989Date of Patent: October 30, 1990Assignee: Thomson-CSFInventors: Joelle Ariel, Jacques Legendre
-
Patent number: 4961060Abstract: The disclosure concerns electromagnetic delay lines of the type having localized constants and being formed by a cascade of derived m networks. The chokes of the delay line are arranged in a folded line, the chokes of two consecutive networks being separated by a distance determined to obtain the desired parameter m, two non-neighboring chokes being separated by a distance sufficient to make their coupling negligible.Type: GrantFiled: March 13, 1989Date of Patent: October 2, 1990Assignee: Compagnie Europeenne de Composants Electroniques LCCInventors: Daniel Grandjean, Jean-Michel Seurre, Didier Zastko
-
Patent number: 4885562Abstract: According to the invention, the circuit comprises at least one two-port network of the "M-derived" section type and connected as an all-pass filter with a phase law which is a linear function of frequency. The two-port network is made in monolithic technology on gallium arsenide and the plane of its structure includes at least one elementary section, which, between an inlet and an outlet which are situated at a distance apart, is constituted by a spiral connected in parallel with a capacitor of metal-insulator-metal structure, with the mid point of the spiral being connected via another capacitor of metal-insulator metal structure to a ground plane. It is applicable to making transmission lines which are programamble in length.Type: GrantFiled: December 9, 1987Date of Patent: December 5, 1989Assignee: Electronique Serge DassaultInventors: Pierre-Louis Ouvrard, Philippe Dueme
-
Patent number: 4800346Abstract: A lumped constant delay line has a substrate, capacitor element disposed on one surface of the substrate provided with a through hole therein, an inductor electrode which is dispossed on the other surface of the substrate and is connected to the capacitor elements by means of a through hole conductive section consisting of coated inside wall of the through hole by means of conductive adhesive and an inductor pin soldered onto the inductor electrode while a distributed constant type delay line has an insulating substrate on which a ferrite layer, an inductance layer, a dielectric layer and a ground electrode layer are superposed one after another and a wiper makes sliding on a wiper base composed of a group of parallel taps which are led out from the meandering paths of the inductance conductive layer and converged toward one side of the insulating substrate whereby to cause variation of delay time of the delay line.Type: GrantFiled: May 13, 1987Date of Patent: January 24, 1989Assignee: Delphi Company Ltd.Inventors: Masayauki Muramatsu, Toshiki Morozumi
-
Patent number: 4722027Abstract: In a hybrid circuit device comprising a base plate on which a circuit including coils is provided, and a flat package of integrated circuit having a smaller flat area than that of the base plate, the flat package and base plate are superimposed upon each other; the two circuits are connected together through terminals of the flat package; external terminals are connected to at least one of the two circuits; the hybrid circuit device is encapsulated with plastics as a whole, with the external terminals being exposed through the encapsulation; and on that part of the base plate which does not overlap the flat package, circuit components constituting the circuit provided on the base plate are securely mounted at lateral positions with respect to the flat package.Type: GrantFiled: August 5, 1986Date of Patent: January 26, 1988Assignee: Toko Inc.Inventor: Yasumitsu Hayakawa
-
Patent number: 4697162Abstract: This variable delay line system includes a variable delay line which has two output ends and a plurality of signal input points at its intermediate points, a means for selecting one of the input points of the variable delay line and for inputting a signal thereto, and a means for switching the signals from the output ends of the variable delay line and for outputting them. Optionally, a fixed delay line can further be included. Thereby, the varibale delay line system has a simple and compact structure and is effective.Type: GrantFiled: February 5, 1986Date of Patent: September 29, 1987Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4695812Abstract: This distributed constant type delay line has an inductance element which has a plurality of main portions lying generally in parallel stacked planes. Each of the main portions has a conducting portion with a generally central line, the conducting portions being connected in series with one another with their the central lines lying generally parallel to one another and being alternately staggered to and fro in the direction generally perpendicular to them and generally parallel to the stacked planes. A ground electrode is interposed between the conducting portions of two neighboring ones of the main portions of the inductance element. And a dielectric layer is interposed between the ground electrode and a neighboring one of the main portions of the inductance element. Thereby, a very efficient and compact construction becomes available, which is suitable for being made as a chip. Optionally, capacitance compensating electrodes are defined as extending out from the main portions of the inductance element.Type: GrantFiled: March 14, 1986Date of Patent: September 22, 1987Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4686495Abstract: This finely variable delay line includes a first variable delay line element the delay time provided by which can be relatively coarsely varied, and a second variable delay line element the delay time provided by which can be relatively finely varied, connected in series with the first variable delay line. A reflection circuit is constituted between an element included in the second variable delay line and another element of the construction, the reflection circuit reflecting back a signal towards the element of the second variable delay line. Although some slight mismatching is in fact present, such mismatching is quite negligible in practice, and this variable delay line can be very finely adjusted by steps of as little as 0.5% of its total range or less.Type: GrantFiled: February 19, 1986Date of Patent: August 11, 1987Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4656442Abstract: A hybrid circuit device comprising a flat package incorporating an integrated circuit therein, and a delay line circuit constituted by a plurality of coils and a plurality of capacitors. A base plate supporting the delay line circuit is disposed on the flat package. First terminals which are upwardly bent and second terminals are led out of the flat package. The upwardly-bent terminals connect the integrated circuit and delay line circuit to each other at side portions of the base plate. Furthermore, separate external terminals, which are attached to the base plate and connected to the second terminals of the flat package, are provided in two rows holding the flat package therebetween. The device is encapsulated with the free end portion of each of the separate external terminals being exposed through the encapsulation at a position substantially equidistant from the top and bottom surfaces of the encapsulated device.Type: GrantFiled: February 13, 1985Date of Patent: April 7, 1987Assignee: Toko, Inc.Inventor: Yasumitsu Hayakawa
-
Patent number: 4649356Abstract: A low profile high speed electromagnetic delay line capable of long delay times and transmitting signals having rise times less than approximately one nanosecond is described. The electromagnetic delay line is of a single in-line package configuration, but of such a configuration that commercial production is facilitated. A coil assembly has input and output and intermediate terminals extending from the same side of the coil assembly to be connected to flat electrodes on an insulating plate. These connections all occur on the same edge of the insulating plate. At a second opposed edge of the insulating plate are connected terminals leading to external circuits. The various electrodes which receive the coil connections are also connected to the individual capacitors of an elongated flat plate capacitor, and these electrodes are in turn connected to the external connections.Type: GrantFiled: January 2, 1986Date of Patent: March 10, 1987Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4642588Abstract: This invention aims to provide a method of adjustment for a variable delay line which is provided with two delay line elements of dissimilar delay times and switch means capable of selectively switching from one to the other of the two delay line elements and adapted to enable the delay time to be digitally increased or decreased by the delay time difference produced by the selective switching between the delay time elements. This method allows the delay time to be finely adjusted with high accuracy of the order of 1 to some tens of ps by changing the delay time of either of the two delay line elements which has a smaller delay time than the other.Type: GrantFiled: May 22, 1984Date of Patent: February 10, 1987Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4641112Abstract: In a lumped constant type delay line device, conductive plates provided with connecting portions and terminals are insert-molded with respect to a plastic base plate in such a manner that the connecting portions are exposed at one surface of the base plate and the terminals extend externally of the base plate. The delay line device further includes capacitors connected to the connecting portions of the conductive plates; and coils having taps connected to electrodes provided on cores and connected to the terminals of the conductive plates, the coils being mounted on the other surface of the base plate.Type: GrantFiled: March 4, 1986Date of Patent: February 3, 1987Assignee: Toko, Inc.Inventor: Masami Kohayakawa
-
Patent number: 4639696Abstract: In a lumped constant type delay line device comprising a plurality of terminals securely attached to a base plate of an insulating material, and a plurality of cores each having a coil wound thereon, an electrode is provided on the top surface of each core, and a tap of each coil is connected to the electrode.Type: GrantFiled: November 5, 1985Date of Patent: January 27, 1987Assignee: Toko, Inc.Inventor: Kiyobumi Murata
-
Patent number: 4629897Abstract: Proportional detector intended to detect ionizing radiations for 2-dimension localization.This detector consists of a network of conducting wires (2) forming the anodes of an ionization chamber and operating under avalanche conditions and is characterized in that it comprises a continuous resistive collector (12) with two dimensions and located between the anode (2) wires and the cathode (1) on which the localization of an electron avalanche is effected by electrostatic induction, the reading of the data concerning the electric pulse generated by induction on the collector (12) being effected at the periphery of the latter.Type: GrantFiled: February 28, 1983Date of Patent: December 16, 1986Assignee: Centre National de la Recherche ScientifiqueInventors: Marc Lemonnier, Denis Petermann, Daniel Le Fur, Stephan Metgert
-
Patent number: 4620164Abstract: A variable delay line using a lumped constant type electromagnetic delay line and enjoying a superhigh-speed rising characteristic is disclosed, which comprises an inductance element formed by winding a conductor and possessed of a plurality of taps, a plurality of capacitors having electrodes thereof on one side kept in common connection, a plurality of linking electrodes disposed along the inductance element and adapted to interconnect the taps of the inductance element and the electrodes of the capacitors on the other side, fixed contacts formed of limited surface regions of the linking electrodes, and movable contact means adapted to advance on the fixed contacts while keeping pressed contact with each fixed contact so as to permit selection of the taps of the inductance element.Type: GrantFiled: October 30, 1984Date of Patent: October 28, 1986Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4583062Abstract: An electromagnetic delay line is disclosed which is provided with an inductance element formed by a conductor winding with capacitors arranged between the inductance element and ground dividing the element into a plurality of sections. These sections are formed of loops resulting from the winding of the conductor and the loops of adjacent sections are formed in opposed planes divergent in alternately opposite directions. The electromagnetic delay line acquires the optimum coupling coefficient between the sections and achieves advantageous delay characteristics in a wide frequency band including the ultra-high frequency band. Particularly, it obtains the ultra-high speed rise time of less than 1 ns.Type: GrantFiled: January 31, 1984Date of Patent: April 15, 1986Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4570136Abstract: An electromagnetic delay line of a distributed constant type making use of a zigzag strip as a strip line and suitable for use in very high frequency ranges. The zigzag strip comprises electroconductive strips which are bent in such a manner that they are arranged on a first imaginary plane and a second imaginary plane parallel and opposite thereto and spaced apart therefrom by an interval of T, in an alternating manner, and the pitch P and the interval T are so related to each other that the ratio T/P is greater than zero and smaller than unity. Therefore the coupling produced in the zigzag strip is enhanced and the enhanced positive coupling controls negative coupling by reducing or canceling it.Type: GrantFiled: December 26, 1984Date of Patent: February 11, 1986Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4570135Abstract: An ultra-high speed lumped constant delay line includes an inductance element formed by winding a conductor into a single layer solenoid shape of predescribed pitch P, and a plurality of capacitors connected between ground and the conductor at every turn of the inductance element. The pitch P and the winding diameter T in the direction of short diameter are set according to the relation 0.2<P/T<1.9.Type: GrantFiled: February 18, 1983Date of Patent: February 11, 1986Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4565981Abstract: An electromagnetic delay line of novel construction is disclosed which comprises an inductance element having a conductor wound as regularly spaced in the form of a single-layer solenoid and a plurality of capacitors inserted to connect the conductor of the inductance element and a ground after a ladder network. The construction is characterized in that the capacitors are connected one each to a plurality of points per turn of the conductor so as to give rise to a plurality of sections for each turn of the conductor. The electromagnetic delay line thus constructed, therefore, is very compact and exhibits a very quick rise of not more than 1 ns.Type: GrantFiled: September 21, 1984Date of Patent: January 21, 1986Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4556856Abstract: An N-way, lumped element, matched, isolated branch power divider in planar form is disclosed. Lumped inductors are disposed on the top surface of a dielectric substrate, an isolation resistor network is disposed on the bottom surface of the substrate and the substrate is suspended above a ground conductor by lumped element capacitors. The capacitance values of the capacitors and the inductance values of the inductors are selected to provide between the common terminal and each branch terminal a lumped element .pi. network transmission line having a phase shift of about 90.degree. at frequencies within an operating range of frequencies.Type: GrantFiled: September 18, 1984Date of Patent: December 3, 1985Assignee: RCA CorporationInventor: Adolph Presser
-
Patent number: 4555291Abstract: A method of constructing an LC network, and the resulting LC network manufactured by cutting and removing a predetermined pattern from a first and a second conductive sheet, leaving on each sheet a generally coil-like configuration of windings with a sufficient number of interconnections between the adjacent windings to add rigidity to the sheets, laminating these conductive sheets to opposing faces of a non-conductive sheet, thereby forming at least one capacitor, cutting and removing a pre-determined pattern from the lamination eliminating at least some of the interconnections and leaving a conductive path on the conductive sheets which is in the configuration of a coil.Type: GrantFiled: May 17, 1984Date of Patent: November 26, 1985Assignee: Minnesota Mining and Manufacturing CompanyInventors: William C. Tait, Lanny L. Harklau
-
Patent number: 4554486Abstract: A transformer (T) with a primary winding (L1) and a secondary winding (L) coupled to the primary winding. A capacitive element (C) is coupled to the secondary winding for providing an increased output voltage level and an increased output current level from the transformer. The capacitive element may be either of distributed or lumped parameter structure. A reduction in the number of secondary winding turns may be compensated for with the capacitive element to maintain the same voltage output level as was obtained prior to reduction in secondary winding turns and also to obtain an increased current output level by virtue of the presence of the capacitive element and/or the reduction in the number of secondary winding turns. Such reduction in secondary winding turns reduces the physical size of the transformer as well as reducing its copper losses, and also reduces its cost of fabrication.Type: GrantFiled: October 18, 1984Date of Patent: November 19, 1985Inventor: Martin E. Gerry
-
Patent number: 4546332Abstract: A variable delay line is disclosed which comprises an electromagnetic delay line formed of an inductance element and capacitors, a conductive plate disposed along the electromagnetic delay line and opposed thereto, and a movable contact adapted to move along the delay line while remaining in continuous contact with the conductive plate and the inductance element. The variable delay line has its delay characteristics improved by bending the aforementioned conductive plate in such a manner that it is separated from the delay line along the contact parts exposed to contact with the movable contact and, as a result, the stray capacitance formed between the delay line and the conductive plate is kept down to a negligibly small level.Type: GrantFiled: January 25, 1984Date of Patent: October 8, 1985Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4525691Abstract: A lumped constant type ultra-high speed variable delay line includes an inductance element consisting of a single layer solenoid formed by winding a conductor with a prescribed pitch, a capacitor connected between said conductor and ground at each turn, a fixed contact array consisting of fixed contacts respectively formed on said each conductor at each turn of said inductance element, and a movable contact element for sliding on said fixed contact array while alternately making single-contact with one of said fixed contacts and multi-contact with adjacent fixed contacts.Type: GrantFiled: February 18, 1983Date of Patent: June 25, 1985Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4507628Abstract: Disclosed is an electromagnetic type delay line comprising an inductance element formed of a coiled conductor and a plurality of capacitors connecting the conductor to ground and consequently possessing a plurality of sections. The inductance element is formed by coiling the conductor at a prescribed pitch in the shape of a single-layer solenoid. In the inductance element, the one-turn pitch P and half-turn pitch B are selected so as to satisfy the expression, B/P.gtoreq.1.0. Owing to this construction, the coupling coefficients between the individual sections of the inductance element can be easily approximated to the theoretically optimum values.Type: GrantFiled: July 13, 1983Date of Patent: March 26, 1985Assignee: Elmec CorporationInventor: Kazuo Kameya
-
Patent number: 4506238Abstract: A hybrid circuit device comprising a flat package incorporating an integrated circuit therein, and a delay line constituted by a plurality of coils and capacitors. The base plate having the delay line mounted on one main surface thereof is placed, at the other main surface thereof, on the flat package. Upwardly bent terminals and non-bent terminals are led out of the flat package. The upwardly bent terminals connect the integrated circuit and delay line to each other at side portions of the base plate. Furthermore, separate terminals are provided in two rows holding the flat package therebetween and connected to the non-bent terminals of the flat package. The device is encapsulated, with the free end portion of each of the separate terminals being exposed.Type: GrantFiled: December 10, 1982Date of Patent: March 19, 1985Assignee: Toko, Inc.Inventors: Kunihisa Endoh, Yasumitsu Hayakawa
-
Patent number: 4482874Abstract: A method of constructing an inductive-capacitive (LC) network is disclosed in which a predetermined pattern is cut from a metallic sheet to provide a multi-turn, essentially spiral-like configuration in which a plurality of interconnecting regions are left between adjacent turns. A pre-laminate is then formed by laminating one surface of the configured sheet to a surface of a sheet of dielectric material. A completed multi-turn inductor is formed by a second cutting operation in which the remaining interconnecting regions between the adjacent turns are removed. The LC network is completed by laminating a second metallic sheet to a dielectric layer overlying the completed multi-turn inductor. The first and second cutting operations and assembly of the respective sheets are performed such that any burrs resulting from the operations are directed away from the interlying sheet of dielectric material, thereby avoiding problems due to shorting out between the two metallic sheets.Type: GrantFiled: June 4, 1982Date of Patent: November 13, 1984Assignee: Minnesota Mining and Manufacturing CompanyInventors: Roland W. Rubertus, William C. Tait
-
Patent number: 4472725Abstract: A tuneable lumped LC electronic delay line for delaying RF signals in a bandwidth of at least 100 MHz by a substantially constant amount throughout the band, the delay line including a plurality of deformable air coil inductors that are inductively coupled to one another, a plurality of capacitors connected between each inductor pair and electrical ground, and a reactive element connected at one end of the series of inductors and reactively coupled to electrical ground.Type: GrantFiled: February 1, 1982Date of Patent: September 18, 1984Assignee: Century III Electronics Inc.Inventor: Robert M. Blumenkranz
-
Patent number: 4453144Abstract: An LC composite component comprising a coaxial bobbin, a plurality of collars thereon defining winding grooves therebetween, coils wound in the winding grooves, each collar having a concave recess therein, open at a top end thereof, terminal pins projecting upwardly from the opposite ends of the concave recess, a leadless tip type capacitor having upwardly projecting electrodes accommodated in the concave recess and the coils and the capacitor electrodes being connected with each other by the terminal pins, the capacitor electrodes being connected to the terminal pins so as to stably and firmly secure the capacitor at the open end of the concave recess of each collar.Type: GrantFiled: January 27, 1982Date of Patent: June 5, 1984Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Toshiaki Tamura, Yoshiaki Otani, Hiroshi Otake, Masami Yamamura
-
Patent number: 4451764Abstract: An ignition system utilizes a bipolar activated magnetic pulse timer which effectively makes operation of the timer independent of the automotive supply voltages. Such system utilizes a distributed parameter component which may be utilized as a shunt across the ignition transformer secondary winding and also as a high voltage ignition distribution cable. The use of the distributed parameter component as a shunt enables extremely high energy levels to be generated. The use of the distributed parameter component as a distribution cable enables high energy levels to be transferred to the igniters without radio noise induction in a contiguous radio receiver.Type: GrantFiled: May 5, 1983Date of Patent: May 29, 1984Inventor: Martin E. Gerry
-
Patent number: 4310815Abstract: An electromagnetic delay line, comprising two coil formers (5) which are provided with windings and which are adjacently arranged in parallel. On the outer surface of each coil former (5) there is provided a metal strip (7). The metal strips (7) are interconnected by way of a narrow connecting strip (9). During the deposition of windings (3), the coil formers (5) are situated one in the prolongation of the other. Subsequently, they are pivoted to their ultimate position via the connecting strip.Type: GrantFiled: June 27, 1980Date of Patent: January 12, 1982Assignee: U.S. Philips CorporationInventors: Peter M. C. van der Linden, Cornelis van Wieringen
-
Patent number: 4287492Abstract: A concentrated constant type delay device can be assembled in simple steps and has simple and stable structure. The delay device comprises a composite capacitor which comprises a common electrode placed on one surface of a dielectric and a plurality of separated electrodes placed on the other surface of the dielectric and the separated electrodes being respectively connected to each joint of coils connected between an input terminal and an output terminal.Type: GrantFiled: August 24, 1979Date of Patent: September 1, 1981Assignee: TDK Electronics Co., Ltd.Inventors: Yoshio Goshima, Hisashi Osada
-
Patent number: 4272741Abstract: A delay line having an inductive component in which inductive windings are made on multiple post bobbin units to maintain spacing and alignment. Two multiple bobbin units are collectively wound and then secured together with the bobbins interfitting to form a rigid, precisely aligned element, with the wires from each bobbin positioned for ease of connection. The inductive component is mounted on the base of a dual in-line package (DIP), capacitors are secured in the inductive component and the electrical connections are made to connect the inductors and capacitors to the contact pins of the DIP. The assembly is then potted or otherwise enclosed for protection.Type: GrantFiled: April 9, 1979Date of Patent: June 9, 1981Assignee: Varian AssociatesInventor: Jacobus J. M. Vanderknyff
-
Patent number: 4241995Abstract: An apparatus for measuring the amount of relative displacement of mutually facing electrodes in such a direction as to cause a change in the distance therebetween, comprises:a power source generating an AC signal of a determined frequency;a phase-shifting means comprising a resistor and the mutually facing electrodes, the phase-shifting means being adapted to apply the AC signal to the mutually facing electrodes through the resistor and to generate an output signal of which the phase is shifted in response to the amount of relative displacement of the mutually facing electrodes; anda phase difference measuring means for measuring phase difference between the output signal of the phase-shifting means and the AC signal and generating a signal corresponding to the amount of relative displacement of the mutually facing electrodes.Type: GrantFiled: December 22, 1978Date of Patent: December 30, 1980Assignee: Nippon Kogaku K.K.Inventor: Akio Takahama
-
Patent number: 4203081Abstract: A passive circuit element for influencing pulses has two series-connected inductances which connect a first input terminal to a first output terminal, a first capacitor which is connected between the connection point of the inductances and the second terminals which are either directly connected to one another or which coincide with one another. The inductances are formed by spiral conductor paths which are arranged on a substrate and which are oppositely directed to one another. The spiral conductor paths are arranged concentrically above one another in two different conductor path layers which are separated by an insulating layer. The inner ends of the spiral conductor paths are connected by means of a contact extending through the insulating layer and to which a plate of the first capacitor is also connected.Type: GrantFiled: March 17, 1978Date of Patent: May 13, 1980Assignee: Siemens AktiengesellschaftInventor: Walter Braeckelmann
-
Patent number: 4162464Abstract: Two groups of conductors are wound helically with opposite pitch around a core and are further intertwined to establish a mesh, braid or plait. The conductors of each group are interconnected to establish the signal line and the return path for the delay line.Type: GrantFiled: November 11, 1977Date of Patent: July 24, 1979Assignee: Kabel-und Metallwerke Gutehoffnungshutte AktiengesellschaftInventor: Otto Breitenbach