US3925740A - Tuning structures for microstrip transmission lines - Google Patents

Tuning structures for microstrip transmission lines Download PDF

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Publication number
US3925740A
US3925740A US489956A US48995674A US3925740A US 3925740 A US3925740 A US 3925740A US 489956 A US489956 A US 489956A US 48995674 A US48995674 A US 48995674A US 3925740 A US3925740 A US 3925740A
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US
United States
Prior art keywords
transmission line
microstrip transmission
substrate
strip conductor
ground plane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US489956A
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English (en)
Inventor
Peter Dennis Steensma
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TDK Micronas GmbH
ITT Inc
Original Assignee
Deutsche ITT Industries GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Deutsche ITT Industries GmbH filed Critical Deutsche ITT Industries GmbH
Priority to US489956A priority Critical patent/US3925740A/en
Priority to GB29604/75A priority patent/GB1515151A/en
Priority to FR7522304A priority patent/FR2279259A1/fr
Application granted granted Critical
Publication of US3925740A publication Critical patent/US3925740A/en
Assigned to ITT CORPORATION reassignment ITT CORPORATION CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). Assignors: INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P3/00—Waveguides; Transmission lines of the waveguide type
    • H01P3/02—Waveguides; Transmission lines of the waveguide type with two longitudinal conductors
    • H01P3/08—Microstrips; Strip lines
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P7/00—Resonators of the waveguide type
    • H01P7/08—Strip line resonators
    • H01P7/082—Microstripline resonators
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/0213—Electrical arrangements not otherwise provided for
    • H05K1/0237—High frequency adaptations

Definitions

  • One embodiment includes a stub July 19, 1974 strip conductor disposed on the microstrip transmission line substrate at right angles with respect to and spaced from the strip conductor of the microstrip transmission line and a tuning member at right angles 333/ 2 3; 333 24 333 34 M to the substrate disposed over the gap between the H01 7/00; 01 H20 stub strip conductor and the strip conductor.
  • 33 3 24 C, 7 S, 82 B, 84 R the distance of the tuning member above the substrate 333/34 M 12 is varied the shunt impedance of the microstrip transmission is varied.
  • the other embodiment includes a Refe Cit d tuning member threaded in a hole through the carrier UNITED STATES PATENTS of the microstrip transmission line with the metallization removed from the ground plane of the microstrip transmission line immediately above the hole.
  • the inward and outward movement of the tuning member Umted States Patent Steensrna [22 Filed:
  • alllllllllllllllllldflrllllllldm i av 8 6 w 7 333/24 C 333/84 R 333/84 M provides a variable series impedance for the microstrip transmission line.
  • An object of the present invention is the provision of a structure to change an impedance of a microstrip transmission line and thereby tune this transmission line.
  • Another object of the present invention is the provision of a structure to change the shunt impedance of The tuning structure is provided by an arrangement inthe microstrip transmission line and thereby tune this 1 transmission line.
  • Another object of the present invention is the provision of a structure to vary the series impedance of a microstrip transmission line and thereby tune this transmission line.
  • a feature of the present invention is to provide a tuning structure for a microstrip transmission line comprising: a substrate; a ground plane disposed on one surface of the substrate; a strip conductor disposed on the other surface of the substrate superimposed with respect to the ground plane, the substrate, the ground plane and the strip conductor providing the microstrip transmission line; a carrier in association with the ground plane to support the microstrip transmission line; and an arrangement including a tuning member associated with the strip conductor and capable of moving in a perpendicular relationship with respect to the substrate to change an impedance of the microstrip transmission line and thereby tune the microstrip transmission line.
  • FIG. 1 is a top plan view with the enclosure cover removed of one embodiment of a tuning structure for tuning a microstrip transmission line in accordance with the principles of the present invention
  • FIG. 2 is a cross-sectional view taken along line 2--2 of FIG. 1;
  • FIG. 3 is a top plan view with the enclosure cover removed of a second embodiment of a tuning structure for tuning a microstrip transmission line in accordance with the principles of the present invention.
  • FIG. 4 is a cross-sectional view taken along line 4-4 of FIG. 3.
  • the microstrip transmission line is a conventional microstrip transmission line manufactured by any of the well known printed circuit techniques and includes a substrate 1, ground plane 2 disposed on one surface of substrate 1 and strip conductor 3 disposed on the other surface of substrate 1.
  • Stub strip conductor 8 can be formed upon substrate 1 employing any of the well known printed circuit techniques.
  • Tuning member 6 may be a dielectric rod threaded in cover 9 of enclosure 5 but preferably tuning member 6 is metallic as illustrated enabling a more efficient tuning of the microstrip transmission line.
  • Member 6 may be a continuous member screwed into a threaded aperture in cover 9 for movement perpendicular to substrate 1 or as illustrated member 6 may be threaded on to a dielectric rod 10 which in turn is screwed into a threaded aperture in cover 9.
  • the enclosure 5 with its cover 9 is employed in a conventional manner to isolate the microstrip transmission line from other electrical components of the overall system in which it is included. This isolation prevents radio frequency energy from leaking from the microstrip transmission line which may have detrimental effects upon other radio frequency components of the system. Also, the isolation provided by enclosure 5 and its cover 9 prevents radio frequency energy from other radio frequency components from interferring with the operation of the microstrip transmission line.
  • the microstrip transmission line is manufactured by employing any one of the known printed circuit techniques and includes a strip conductor 11 deposited on one surface of substrate 12 and ground plane 13 deposited on the other surface of substrate 12.
  • the microstrip transmission line is supported by a carrier 14 within an enclosure 15.
  • a threaded hold 16 is provided in carrier 14 and enclosure 15 and at the same time ground plane 13 is removed from substrate 12 at region 17 to provide an extension of hole 16 to the bottom of the substrate 12.
  • a screw 18 is threaded into hole 16.
  • phase velocity (phase velocity) (uniuength) 3
  • the affect of this arrangement is to create a variable impedance in series with the transmission path of the microstrip transmission line and hence a variable series impedance for the microstrip transmission line which will enable tuning this transmission line.
  • screw 18 has a diameter greater than the width of strip conductor 11 a portion 19 of conductor 11 in operative association with screw 18 is widened to a width equal to the diameter of screw 18 and portion 19 has a length equal to the diameter of screw 18 to provide a more efficient control of the series impedance.
  • the enclosure of this arrangement has the same purpose as enclosure 5 of the arrangement of FIGS. 1 and 2.
  • a tuning structure for a microstrip transmission line comprising:
  • an arrangement including a tuning member associated with said strip conductor and capable of moving inward and outward in a perpendicular relationship with respect to said substrate to change an impedance of said microstrip transmission line and thereby tune said microstrip transmission line; and
  • said arrangement further including a stub strip conductor disposed on said other surface of said substrate spaced from and at right angles to said strip conductor, the spacing of said stub strip conductor and said strip conductor 4 provides a gap in operative association with said tuning member, said tuning member varying a capacitance across said gap and thereby the total shunt impedance presented to said microstrip transmission line.
  • a tuning structure for a microstrip transmission line comprising:
  • an arrangement including a tuning member associated with said strip conductor and capable of moving inward and outward in a perpendicular relationship with respect to said substrate to change an impedance of said microstrip transmission line and thereby tune said microstrip transmission line; and an enclosure for said transmission line, said carrier and said arrangement to provide a radio frequency interference shield therefore; said arrangement further including a hole at right angles to said substrate through said carrier, said enclosure and said ground plane; said tuning member being inserted in said hole to change the length of flux paths to ground from said microstrip transmission line and thereby the series impedance of said microstrip transmission line immediately above said tuning member;
  • said tuning member being a metallic screw screwed into said threaded hole
  • said screw having a diameter greater than the width of said strip conductor

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  • Waveguides (AREA)
US489956A 1974-07-19 1974-07-19 Tuning structures for microstrip transmission lines Expired - Lifetime US3925740A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
US489956A US3925740A (en) 1974-07-19 1974-07-19 Tuning structures for microstrip transmission lines
GB29604/75A GB1515151A (en) 1974-07-19 1975-07-15 Tuning structures for microstrip transmission lines
FR7522304A FR2279259A1 (fr) 1974-07-19 1975-07-17 Dispositif d'accord pour lignes de transmission a microbande

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US489956A US3925740A (en) 1974-07-19 1974-07-19 Tuning structures for microstrip transmission lines

Publications (1)

Publication Number Publication Date
US3925740A true US3925740A (en) 1975-12-09

Family

ID=23945975

Family Applications (1)

Application Number Title Priority Date Filing Date
US489956A Expired - Lifetime US3925740A (en) 1974-07-19 1974-07-19 Tuning structures for microstrip transmission lines

Country Status (3)

Country Link
US (1) US3925740A (enExample)
FR (1) FR2279259A1 (enExample)
GB (1) GB1515151A (enExample)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999142A (en) * 1975-11-12 1976-12-21 The United States Of America As Represented By The Secretary Of The Army Variable tuning and feedback on high power microwave transistor carrier amplifier
US4471329A (en) * 1981-03-05 1984-09-11 Italtel Societa Italiana Telecomunicazioni S.P.A. Microwave circuit component for superhigh-frequency signals
US4472690A (en) * 1982-06-14 1984-09-18 Rockwell International Corporation Universal transistor characteristic matching apparatus
US4535307A (en) * 1982-06-30 1985-08-13 Raytheon Company Microwave circuit device package
US4618838A (en) * 1984-02-27 1986-10-21 Sony Corporation Impedance adjusting element for a microstrip circuit
US4618836A (en) * 1984-12-24 1986-10-21 Motorola, Inc. Wide band dielectric resonator oscillator having temperature compensation
FR2589650A1 (fr) * 1985-11-05 1987-05-07 Radiotechnique Circuit a ligne microbande resonnante
US4814729A (en) * 1987-12-09 1989-03-21 Rockwell International Corporation Precisely tunable impatt diode module for weather radar apparatus
US4885556A (en) * 1988-11-01 1989-12-05 The Boeing Company Circularly polarized evanescent mode radiator
US4912437A (en) * 1987-11-23 1990-03-27 Solitra Oy Stripline circuit and method for regulating the characteristics thereof
EP0522515A1 (en) * 1991-07-08 1993-01-13 Sumitomo Electric Industries, Ltd. Microwave resonator of compound oxide superconductor material
US5616538A (en) * 1994-06-06 1997-04-01 Superconductor Technologies, Inc. High temperature superconductor staggered resonator array bandpass filter
WO2001031740A1 (en) * 1999-10-29 2001-05-03 Telefonaktiebolaget Lm Ericsson Module antenna device
US20030087765A1 (en) * 1993-05-28 2003-05-08 Superconductor Technologies, Inc. High temperature superconducting structures and methods for high Q, reduced intermodulation structures
US20030222732A1 (en) * 2002-05-29 2003-12-04 Superconductor Technologies, Inc. Narrow-band filters with zig-zag hairpin resonator
US7231238B2 (en) 1989-01-13 2007-06-12 Superconductor Technologies, Inc. High temperature spiral snake superconducting resonator having wider runs with higher current density
JP2009231947A (ja) * 2008-03-19 2009-10-08 Fujitsu Ltd 超伝導フィルタ装置及び通信用モジュール
JP2010021639A (ja) * 2008-07-08 2010-01-28 Fujitsu Ltd フィルタ
US20100214041A1 (en) * 2009-02-25 2010-08-26 Shu-Ying Cho Coupled Microstrip Lines with Tunable Characteristic Impedance and Wavelength
US20110149443A1 (en) * 2009-12-23 2011-06-23 Contreras John T Tunable microstrip transmission path in a hard disk drive
US8279025B2 (en) 2008-12-09 2012-10-02 Taiwan Semiconductor Manufacturing Company, Ltd. Slow-wave coaxial transmission line having metal shield strips and dielectric strips with minimum dimensions
EP2575206A1 (en) * 2011-09-29 2013-04-03 Kabushiki Kaisha Toshiba Filter
US8922293B2 (en) 2008-06-09 2014-12-30 Taiwan Semiconductor Manufacturing Company, Ltd. Microstrip lines with tunable characteristic impedance and wavelength
WO2018068138A1 (en) * 2016-10-11 2018-04-19 International Road Dynamics, Inc. Parametric disturbance sensor for a vehicular measurement system

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2418967A1 (fr) * 1978-03-03 1979-09-28 Lignes Telegraph Telephon Circulateur a elements localises a circuit d'elargissement de bande reglable
DE3028828A1 (de) * 1980-07-30 1982-02-25 Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt Abstimmbare streifenleiterschaltung
FR2496997A1 (fr) * 1980-12-23 1982-06-25 Orega Electro Mecanique Dispositif de reglage de l'accord d'une ligne de transmission resonnante, ligne de transmission et filtre de bande hyperfrequence munis de tels dispositifs.
GB2199190A (en) * 1986-12-22 1988-06-29 Philips Electronic Associated Patch antenna

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310760A (en) * 1964-08-12 1967-03-21 Bell Telephone Labor Inc Strip line tuning structures
US3359513A (en) * 1965-08-31 1967-12-19 Douglas J Kelley Strip transmission line having phase trimmer means
US3613035A (en) * 1969-11-13 1971-10-12 Rca Corp Tuning arrangement for a strip transmission line in a hermetically sealed package

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3310760A (en) * 1964-08-12 1967-03-21 Bell Telephone Labor Inc Strip line tuning structures
US3359513A (en) * 1965-08-31 1967-12-19 Douglas J Kelley Strip transmission line having phase trimmer means
US3613035A (en) * 1969-11-13 1971-10-12 Rca Corp Tuning arrangement for a strip transmission line in a hermetically sealed package

Cited By (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3999142A (en) * 1975-11-12 1976-12-21 The United States Of America As Represented By The Secretary Of The Army Variable tuning and feedback on high power microwave transistor carrier amplifier
US4471329A (en) * 1981-03-05 1984-09-11 Italtel Societa Italiana Telecomunicazioni S.P.A. Microwave circuit component for superhigh-frequency signals
US4472690A (en) * 1982-06-14 1984-09-18 Rockwell International Corporation Universal transistor characteristic matching apparatus
US4535307A (en) * 1982-06-30 1985-08-13 Raytheon Company Microwave circuit device package
EP0154496A3 (en) * 1984-02-27 1988-01-27 Sony Corporation Microstrip circuits
US4618838A (en) * 1984-02-27 1986-10-21 Sony Corporation Impedance adjusting element for a microstrip circuit
AU573692B2 (en) * 1984-02-27 1988-06-16 Sony Corporation Microstrip circuit
US4618836A (en) * 1984-12-24 1986-10-21 Motorola, Inc. Wide band dielectric resonator oscillator having temperature compensation
US4719435A (en) * 1985-11-05 1988-01-12 U.S. Philips Corporation Resonant microstrip-line circuit
EP0222445A1 (fr) * 1985-11-05 1987-05-20 Philips Electronique Grand Public Circuit à ligne microbande résonante
FR2589650A1 (fr) * 1985-11-05 1987-05-07 Radiotechnique Circuit a ligne microbande resonnante
US4912437A (en) * 1987-11-23 1990-03-27 Solitra Oy Stripline circuit and method for regulating the characteristics thereof
US4814729A (en) * 1987-12-09 1989-03-21 Rockwell International Corporation Precisely tunable impatt diode module for weather radar apparatus
US4885556A (en) * 1988-11-01 1989-12-05 The Boeing Company Circularly polarized evanescent mode radiator
US7231238B2 (en) 1989-01-13 2007-06-12 Superconductor Technologies, Inc. High temperature spiral snake superconducting resonator having wider runs with higher current density
EP0522515A1 (en) * 1991-07-08 1993-01-13 Sumitomo Electric Industries, Ltd. Microwave resonator of compound oxide superconductor material
US5391543A (en) * 1991-07-08 1995-02-21 Sumitomo Electric Industries, Ltd. Microwave resonator of compound oxide superconductor material having a tuning element with a superconductive tip
US20030087765A1 (en) * 1993-05-28 2003-05-08 Superconductor Technologies, Inc. High temperature superconducting structures and methods for high Q, reduced intermodulation structures
US6895262B2 (en) 1993-05-28 2005-05-17 Superconductor Technologies, Inc. High temperature superconducting spiral snake structures and methods for high Q, reduced intermodulation structures
US5616538A (en) * 1994-06-06 1997-04-01 Superconductor Technologies, Inc. High temperature superconductor staggered resonator array bandpass filter
US6392603B1 (en) 1999-10-29 2002-05-21 Telefonaktiebolaget Lm Ericsson (Publ) Module antenna device
WO2001031740A1 (en) * 1999-10-29 2001-05-03 Telefonaktiebolaget Lm Ericsson Module antenna device
US20030222732A1 (en) * 2002-05-29 2003-12-04 Superconductor Technologies, Inc. Narrow-band filters with zig-zag hairpin resonator
JP2009231947A (ja) * 2008-03-19 2009-10-08 Fujitsu Ltd 超伝導フィルタ装置及び通信用モジュール
US8922293B2 (en) 2008-06-09 2014-12-30 Taiwan Semiconductor Manufacturing Company, Ltd. Microstrip lines with tunable characteristic impedance and wavelength
JP2010021639A (ja) * 2008-07-08 2010-01-28 Fujitsu Ltd フィルタ
US8279025B2 (en) 2008-12-09 2012-10-02 Taiwan Semiconductor Manufacturing Company, Ltd. Slow-wave coaxial transmission line having metal shield strips and dielectric strips with minimum dimensions
US8324979B2 (en) 2009-02-25 2012-12-04 Taiwan Semiconductor Manufacturing Company, Ltd. Coupled microstrip lines with ground planes having ground strip shields and ground conductor extensions
US20100214041A1 (en) * 2009-02-25 2010-08-26 Shu-Ying Cho Coupled Microstrip Lines with Tunable Characteristic Impedance and Wavelength
US8305712B2 (en) 2009-12-23 2012-11-06 Hitachi Global Storage Technologies, Netherlands B.V. Tunable microstrip signal transmission path in a hard disk drive
US20110149443A1 (en) * 2009-12-23 2011-06-23 Contreras John T Tunable microstrip transmission path in a hard disk drive
EP2575206A1 (en) * 2011-09-29 2013-04-03 Kabushiki Kaisha Toshiba Filter
US8938277B2 (en) 2011-09-29 2015-01-20 Kabushiki Kaisha Toshiba Planar microstrip filter disposed in a case and having movable structural components spaced at intervals relative to the filter
WO2018068138A1 (en) * 2016-10-11 2018-04-19 International Road Dynamics, Inc. Parametric disturbance sensor for a vehicular measurement system
US11415436B2 (en) 2016-10-11 2022-08-16 International Road Dynamics, Inc. Parametric disturbance sensor for a vehicular measurement system

Also Published As

Publication number Publication date
FR2279259A1 (fr) 1976-02-13
FR2279259B3 (enExample) 1979-04-20
GB1515151A (en) 1978-06-21

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Legal Events

Date Code Title Description
AS Assignment

Owner name: ITT CORPORATION

Free format text: CHANGE OF NAME;ASSIGNOR:INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION;REEL/FRAME:004389/0606

Effective date: 19831122