EP0500949A1 - Circuit hyperfrequence - Google Patents

Circuit hyperfrequence Download PDF

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Publication number
EP0500949A1
EP0500949A1 EP91915147A EP91915147A EP0500949A1 EP 0500949 A1 EP0500949 A1 EP 0500949A1 EP 91915147 A EP91915147 A EP 91915147A EP 91915147 A EP91915147 A EP 91915147A EP 0500949 A1 EP0500949 A1 EP 0500949A1
Authority
EP
European Patent Office
Prior art keywords
short
circuit
contact
microwave
metal body
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.)
Granted
Application number
EP91915147A
Other languages
German (de)
English (en)
Other versions
EP0500949A4 (en
EP0500949B1 (fr
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. 7 shows a short-circuit section of a conventional cylindrical waveguide
  • Fig. 8 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 the direction of propagation without involving any loss.
  • the microwave circuit of the present invention comprises: a first metal body having a concentric-circle-like prominence provided at an end of a cylindrical microwave transmission path and extending outwardly from a cylindrical inner wall; and a second metal body having a planar configuration and held in contact with the first metal body.
  • the first metal body is held in contact with the second planar metal body solely through a small region corresponding to the prominence provided on the outside of the cylindrical inner wall thereof, thereby attaining an adequate electromagnetic contact between the two metal bodies and ensuring satisfactory characteristics.
  • Fig. 1 shows a short-circuit section of a cylindrical waveguide according to the present invention
  • Fig. 2 shows 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. If the short-circuit plate 4 is in an adequate short-circuit state, a microwave propagated through the cylindrical waveguide 5 makes a total reflection to change the direction of propagation without involving any loss.
  • the short-circuit plate 4 is brought into contact with a concentric-circle-like prominence 3 before it is brought into contact with the mounting surface 2 at the time of mounting, so that the contact of the short-circuit plate 4 with the end surface of the inner-wall section of the cylindrical waveguide 5, which is important when realizing a short-circuit plane, can be attained in an adequate manner, thereby ensuring a satisfactory short-circuit characteristic not depending upon the surface precision of the mounting surface 2. Further, since the short-circuit plate 4 is brought into contact with the inner wall of the cylindrical waveguide 5 before it is brought into contact with the mounting surface 2, it is possible to realize a satisfactory short-circuit plate even if a particularly high level of flatness cannot be ensured for the short-circuit plate 4.
  • FIG. 3 shows a short-circuit section of a cylindrical waveguide according to another embodiment of the present invention
  • Fig. 4 shows 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; and numeral 3 indicates a concentric-circle-like prominence.
  • the sectional configuration of the concentric-circle-like prominence 3 is changed so as to facilitate the machining thereof.
  • this structure is free from the influence of the surface precision of the contact surface 2, and through the contact of the short-circuit plate 4 with the concentric-circle-like prominence 3, it is possible to ensure satisfactory characteristics for the short-circuit plane of the cylindrical waveguide.
  • FIG. 5 and 6 show a sectional view of cylindrical-waveguide/microstrip-line conversion sections in other embodiments of the present invention.
  • 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 connecting 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.
  • a first metal body having a concentric-circle-like prominence at an end of a cylindrical microwave transmission path and extending outwardly from a cylindrical wall is brought into contact with a second metal body having a planar configuration, whereby any discontinuity in the external conductor sections in the microwave transmission path is eliminated and satisfactory transmission characteristics can be obtained, this providing a remarkable advantage.

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Waveguide Switches, Polarizers, And Phase Shifters (AREA)
  • Microwave Amplifiers (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
  • Non-Reversible Transmitting Devices (AREA)
  • Waveguide Connection Structure (AREA)
  • Control Of Motors That Do Not Use Commutators (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.
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 true EP0500949A1 (fr) 1992-09-02
EP0500949A4 EP0500949A4 (en) 1993-03-03
EP0500949B1 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)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0498896A4 (en) * 1990-08-31 1993-03-03 Matsushita Electric Industrial Co., Ltd Microwave circuit
EP1003236A2 (fr) * 1998-11-18 2000-05-24 DaimlerChrysler AG Dispositif et procédé pour la production de composants haute fréquence
WO2004030140A1 (fr) * 2002-09-20 2004-04-08 Eads Deutschland Gmbh Filtre de guide d'ondes

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003032032A (ja) * 2001-07-11 2003-01-31 Maspro Denkoh Corp アンテナ装置の信号受信装置

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

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0498896A4 (en) * 1990-08-31 1993-03-03 Matsushita Electric Industrial Co., Ltd Microwave circuit
US5280253A (en) * 1990-08-31 1994-01-18 Matsushita Electric Industrial Co. Ltd. Cylindrical waveguide-to-microstrip line converter
EP1003236A2 (fr) * 1998-11-18 2000-05-24 DaimlerChrysler AG Dispositif et procédé pour la production de composants haute fréquence
WO2004030140A1 (fr) * 2002-09-20 2004-04-08 Eads Deutschland Gmbh Filtre de guide d'ondes
KR101011282B1 (ko) * 2002-09-20 2011-01-28 이에이디에스 도이치란트 게엠베하 도파관 필터

Also Published As

Publication number Publication date
DE69120052T2 (de) 1997-01-23
DE69120052D1 (de) 1996-07-11
CA2067729C (fr) 1997-02-11
EP0500949A4 (en) 1993-03-03
JPH04113703A (ja) 1992-04-15
EP0500949B1 (fr) 1996-06-05
KR920702561A (ko) 1992-09-04
WO1992004742A1 (fr) 1992-03-19
CA2067729A1 (fr) 1992-03-04

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