EP0500949B1 - Circuit hyperfrequence - Google Patents

Circuit hyperfrequence Download PDF

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Publication number
EP0500949B1
EP0500949B1 EP91915147A EP91915147A EP0500949B1 EP 0500949 B1 EP0500949 B1 EP 0500949B1 EP 91915147 A EP91915147 A EP 91915147A EP 91915147 A EP91915147 A EP 91915147A EP 0500949 B1 EP0500949 B1 EP 0500949B1
Authority
EP
European Patent Office
Prior art keywords
supporter
metal
conductor
metal body
contact
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
EP91915147A
Other languages
German (de)
English (en)
Other versions
EP0500949A1 (fr
EP0500949A4 (en
Inventor
Akihito 2-28-18 Minami Tsukaguchi-Cho Deki
Yukiro 1-7-10-501 Tsukahara Kashima
Hirokazu 4-55-20 Ankohji-Cho Yoshimura
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of EP0500949A1 publication Critical patent/EP0500949A1/fr
Publication of EP0500949A4 publication Critical patent/EP0500949A4/en
Application granted granted Critical
Publication of EP0500949B1 publication Critical patent/EP0500949B1/fr
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
    • H01P11/00—Apparatus or processes specially adapted for manufacturing waveguides or resonators, lines, or other devices of the waveguide type
    • H01P11/001—Manufacturing waveguides or transmission lines of the waveguide type
    • H01P11/002—Manufacturing hollow waveguides
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/24—Terminating devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P1/00—Auxiliary devices
    • H01P1/24—Terminating devices
    • H01P1/28—Short-circuiting plungers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01P—WAVEGUIDES; RESONATORS, LINES, OR OTHER DEVICES OF THE WAVEGUIDE TYPE
    • H01P5/00—Coupling devices of the waveguide type
    • H01P5/08—Coupling devices of the waveguide type for linking dissimilar lines or devices
    • H01P5/10—Coupling devices of the waveguide type for linking dissimilar lines or devices for coupling balanced lines or devices with unbalanced lines or devices
    • H01P5/107—Hollow-waveguide/strip-line transitions

Definitions

  • the present invention relates to a microwave circuit used in a microwave communication apparatus, a satellite broadcast receiving converter or the like.
  • Fig. 3 shows a short-circuit section of a conventional cylindrical waveguide
  • Fig. 4 is a sectional view of the same.
  • numeral 1 indicates a metal body including a cylindrical waveguide 5
  • numeral 2 indicates a mounting surface for a short-circuit plate 4.
  • the short-circuit plate 4 is fixed to the mounting surface 2 by means of screws or the like to form a short-circuit plane. If the short-circuit plate 4 is in an ideal short-circuit state, a microwave being propagated through the cylindrical waveguide 5 makes a total reflection to change direction of propagation without involving any loss.
  • CWG/MSL cylindrical waveguide/microstrip-line
  • JP-A-2-183601 It is known from JP-A-2-183601 to provide a microwave circuit in which a metal body acting as an external conductor of a coaxial line has a concentric circle-like prominence formed on a contact surface thereof to provide a means for forming an adequate contact between the metal body and a ground plane of a microstrip line (MSL). If, however, an adequate contact is not achieved it may be necessary to replace the whole metal body.
  • MSL microstrip line
  • a microwave circuit which includes a metal body having a cylindrical-waveguide, a contact surface and a bore extending from said cylindrical-waveguide to said surface.
  • the metal body serves as an external conductor of a coaxial line.
  • a hollow dielectric supporter is fitted within said bore and a conductor which serves as an internal conductor of the coaxial line extends through said hollow dielectric supporter, and projects into said cylindrical-waveguide.
  • the conductor also extends through a hollow metal supporter also fitted in the bore.
  • the bore has a small diameter bore part and a large diameter bore part, with said hollow dielectric supporter being fitted within the small diameter bore part and the hollow metal supporter being fitted in said large diameter bore part.
  • the hollow metal supporter is such that it projects from the surface of the metal body so as to make positive contact with a ground plane of a dielectric substrate, whereby an adequate contact is made between the metal body and said ground plane.
  • EP-A1-0498896 constitutes a part of the state of the art in accordance with Article 54(3) EPC.
  • JP-A-2-183601 and EP-A1-0498896 both describe means for improving contact between an external conductor of a coaxial line and a ground plane of a CWG/MSL.
  • the microwave circuit of the present invention comprises: a metal body having a cylindrical-waveguide, a contact surface and a bore extending from said cylindrical-waveguide to said surface, said metal body serving as an external conductor of a coaxial line; a dielectric substrate laid on said metal body; a dielectric supporter fitted within said bore; and a conductor which serves as an internal conductor of the coaxial line extending through said dielectric supporter and which projects into said cylindrical-waveguide, characterised in that said conductor also extends through a metal supporter also fitted in the bore, said metal supporter and said metal body comprising conductor sections of said coaxial line, and said bore has a small diameter bore part and a large diameter bore part, said dielectric supporter being fitted within the small diameter bore part and the metal supporter being fitted in said large diameter bore part, and a concentric-circle-like prominence is provided on either the metal body or the metal supporter which, in use, are brought into contact with each other, whereby an adequate contact is made between the metal supporter and
  • the metal body is held in contact with the metal supporter solely through a small region corresponding to the prominence provided on either of the metal body or the metal supporter, thereby attaining an adequate electromagnetic contact between the two metal bodies and ensuring satisfactory characteristics.
  • FIG. 1 and 2 show a sectional view of cylindrical-waveguide/microstrip-line conversion sections in a short circuit section of a cylindrical waveguide.
  • Numeral 10 indicates a metal body including a cylindrical waveguide; numeral 6 indicates a post member; numeral 7 indicates an MIC substrate having a microstrip line; numeral 8 indicates a metal supporter for forming a hollow coaxial line-together with the post member 6; and numeral 9 indicates a dielectric supporter forming a dielectric coaxial line with the post member 6.
  • a microwave propagated through the cylindrical waveguide in a direction perpendicular to the plane of the drawings is converted to a coaxial mode in the section of the post member 6 and propagated through coaxial lines formed by the components 9 and 8, and mode conversion is further effected in the connection section between the MIC substrate 7 and the post member 6 to propagate the microwave through the microstrip line on the MIC substrate 7.
  • a concentric-circle-like prominence is provided on the external conductor forming one coaxial line, and brought into contact with the external conductor of the other coaxial line, thereby preventing loss and deterioration in VSWR due to the generation of discontinuous portions in the coaxial external conductors.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Microwave Amplifiers (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Non-Reversible Transmitting Devices (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Waveguide Connection Structure (AREA)

Abstract

L'invention se rapporte à un circuit hyperfréquence dans lequel un premier boîtier métallique (1, 10), qui comporte sur la face terminale d'un guide d'hyperfréquences cylindriques, une partie saillante de forme annulaire (3, 11), se trouve en contact avec un second boîtier métallique (4) de forme plane. Le premier boîtier n'étant en contact fiable avec le second boîtier métallique plat (4) que dans la région resserrée de la partie saillante (3, 11), le contact électromagnétique obtenu entre les deux boîtiers est satisfaisant et les caractéristiques désirées sont assurées.

Claims (2)

  1. Circuit hyperfréquence comprenant: un corps métallique (10) qui comporte un guide d'ondes cylindrique (5), une surface de contact et une forure s'étendant depuis ledit guide d'ondes cylindrique (5) jusqu'à ladite surface, ledit corps métallique (10) servant de conducteur externe d'une ligne coaxiale; un substrat diélectrique (7) appliqué sur ledit corps métallique (10); un élément de support diélectrique (9) adapté dans ladite forure; et un conducteur (6) qui sert de conducteur interne de la ligne coaxiale, traverse ledit élément de support diélectrique (9) et fait saillie dans ledit guide d'ondes cylindrique (5), caractérisé en ce que ledit conducteur (6) traverse aussi un élément de support métallique (8) également adapté dans ladite forure, ledit élément de support métallique (8) et ledit corps métallique (10) constituant des sections conductrices de ladite ligne coaxiale, et ladite forure comprenant une partie de petit diamètre et une partie de grand diamètre, ledit élément de support diélectrique (9) étant adapté dans la partie de forure de petit diamètre et l'élément de support métallique (8) étant adapté dans la partie de forure de grand diamètre, et en ce qu'une saillie en cercle concentrique (11) est formée, soit sur le corps métallique (10), soit sur l'élément de support métallique (8) qui, en service, sont mis en contact l'un avec l'autre, ce qui fait qu'un contact convenable est établi entre l'élément de support métallique (8) et le corps métallique (10) constituant les sections conductrices de la ligne coaxiale.
  2. Circuit hyperfréquence selon la revendication 1, caractérisé en ce que ledit conducteur (6) servant de conducteur interne est une tige (6).
EP91915147A 1990-09-03 1991-09-02 Circuit hyperfrequence Expired - Lifetime EP0500949B1 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP233500/90 1990-09-03
JP2233500A JPH04113703A (ja) 1990-09-03 1990-09-03 マイクロ波回路
PCT/JP1991/001171 WO1992004742A1 (fr) 1990-09-03 1991-09-02 Circuit hyperfrequence

Publications (3)

Publication Number Publication Date
EP0500949A1 EP0500949A1 (fr) 1992-09-02
EP0500949A4 EP0500949A4 (en) 1993-03-03
EP0500949B1 true EP0500949B1 (fr) 1996-06-05

Family

ID=16955999

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91915147A Expired - Lifetime EP0500949B1 (fr) 1990-09-03 1991-09-02 Circuit hyperfrequence

Country Status (6)

Country Link
EP (1) EP0500949B1 (fr)
JP (1) JPH04113703A (fr)
KR (1) KR920702561A (fr)
CA (1) CA2067729C (fr)
DE (1) DE69120052T2 (fr)
WO (1) WO1992004742A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04115604A (ja) * 1990-08-31 1992-04-16 Matsushita Electric Ind Co Ltd マイクロ波回路
DE19853022A1 (de) * 1998-11-18 2000-05-25 Daimler Chrysler Ag Vorrichtung und Verfahren zur Herstellung von Hochfrequenzbauteilen
JP2003032032A (ja) * 2001-07-11 2003-01-31 Maspro Denkoh Corp アンテナ装置の信号受信装置
DE10243670B3 (de) * 2002-09-20 2004-02-12 Eads Deutschland Gmbh Hohlleiterfilter

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527908A (en) * 1946-08-28 1950-10-31 Rca Corp Microwave closure member and seal therefor
GB1500286A (en) * 1975-04-28 1978-02-08 Decca Ltd Circuit package
JPS6030601B2 (ja) * 1978-10-17 1985-07-17 新明和工業株式会社 塵芥収集自動車
JPS6221601U (fr) * 1985-07-23 1987-02-09
JPH02183601A (ja) * 1989-01-10 1990-07-18 Maspro Denkoh Corp マイクロ波装置
JPH04115604A (ja) * 1990-08-31 1992-04-16 Matsushita Electric Ind Co Ltd マイクロ波回路

Also Published As

Publication number Publication date
WO1992004742A1 (fr) 1992-03-19
JPH04113703A (ja) 1992-04-15
CA2067729C (fr) 1997-02-11
EP0500949A1 (fr) 1992-09-02
DE69120052T2 (de) 1997-01-23
EP0500949A4 (en) 1993-03-03
DE69120052D1 (de) 1996-07-11
CA2067729A1 (fr) 1992-03-04
KR920702561A (ko) 1992-09-04

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