WO1992004742A1 - Microwave circuit - Google Patents

Microwave circuit Download PDF

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Publication number
WO1992004742A1
WO1992004742A1 PCT/JP1991/001171 JP9101171W WO9204742A1 WO 1992004742 A1 WO1992004742 A1 WO 1992004742A1 JP 9101171 W JP9101171 W JP 9101171W WO 9204742 A1 WO9204742 A1 WO 9204742A1
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WO
WIPO (PCT)
Prior art keywords
short
contact
circular waveguide
circuit
metal
Prior art date
Application number
PCT/JP1991/001171
Other languages
French (fr)
Japanese (ja)
Inventor
Akihito Deki
Yukiro Kashima
Hirokazu Yoshimura
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.
Priority to DE69120052T priority Critical patent/DE69120052T2/en
Priority to EP91915147A priority patent/EP0500949B1/en
Priority to KR1019920701030A priority patent/KR920702561A/en
Publication of WO1992004742A1 publication Critical patent/WO1992004742A1/en

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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 is a micro-wave circuit used for a micro-sigma-wave communication device and a satellite broadcast reception computer.
  • FIG. 7 shows a conventional circular waveguide short-circuit portion
  • FIG. 8 shows a cross-sectional view thereof.
  • reference numeral 1 denotes a metal housing having a circular waveguide 5
  • reference numeral 2 denotes a mounting surface of the short board 4.
  • the short plate 2 is fixed to the mounting surface 2 by a screw or the like to form a short surface.
  • the microwave propagating through the circular waveguide 5 does not totally reflect without loss and changes its propagation direction when the short plate 4 is in an ideal short circuit state. .
  • the surface accuracy of the mounting surface 2 is limited. Due to the flatness of the plate and the shortness of the short plate 4, the contact at the end face of the circular waveguide in particular was not sufficient, so the short plate 4 was completely Does not work as a short shot. For this reason, when using the short noise compo- nent shot surface, the input power cannot be sufficiently reflected, causing noise figure degradation and input VSWR degradation. Had the following problems.
  • the present invention secures sufficient contact between the outer conductor of the first metal housing having the cylindrical microwave transmission path and the conductor having the second planar shape.
  • it is also intended to provide a microwave circuit exhibiting good characteristics.
  • a microwave circuit according to the present invention has a concentric ridge at an end face of a cylindrical micro-wave transmission line outside a cylindrical inner wall. It is constituted by contacting the first metal housing and the metal housing having the second planar shape.
  • the first metal housing is brought into contact with the metal housing having the second planar shape in a narrow range only in the raised portion provided outside the cylindrical inner wall. Therefore, the electromagnetic contact between the housings is sufficient, and good characteristics can be secured.
  • FIG. 1 is an exploded perspective view showing a short-circuit portion of a circular waveguide in one embodiment of the present invention
  • FIG. 2 is a cross-sectional view thereof
  • FIG. 3 is a circular conductor according to another embodiment of the present invention.
  • FIG. 4 is an exploded perspective view showing a short-circuit portion of a waveguide
  • FIG. 4 is a cross-sectional view of the same
  • FIGS. 5 and 6 are views of one circular waveguide in the second and third embodiments of the present invention.
  • FIG. 7 is an exploded perspective view showing a conventional circular waveguide short-circuited portion
  • FIG. 8 is a cross-sectional view thereof.
  • Fig. 1 shows a short-circuit portion of a circular waveguide according to the present invention
  • Fig. 2 shows a cross-sectional view thereof.
  • 1 is a metal case having a circular waveguide 5
  • 2 is a mounting surface of a short board 4.
  • the microwave propagating in the circular waveguide 5 changes the propagation direction without loss and without total reflection if the short-circuit state in the short plate 4 is sufficient.
  • the short plate 2 is brought into contact with the concentric raised portion 3 before contacting the mounting surface 2 at the time of mounting. Since the short plate 4 at the inner wall end face of the circular waveguide 5, which is important when realizing the short surface, is Good short-circuit characteristics can be ensured without being affected by the surface accuracy of the cutting surface 2.
  • FIG. 3 shows a short-circuited portion of a circular waveguide in another embodiment of the present invention
  • FIG. 4 shows a cross-sectional view of the short-circuited portion.
  • reference numeral 10 denotes a metal housing having a circular waveguide 12
  • reference numeral 2 denotes a mounting surface of the short plate.
  • 11 are concentric ridges.
  • the processing is made easier by changing the cross-sectional shape of the concentric raised portion 11.
  • the circular guide is not affected by the surface accuracy of the contact surface 2 and the shot # 4 comes into contact with the concentric raised portion 11 as in the previous embodiment.
  • the short-circuit surface of the waveguide tube 1 2 can ensure sufficiently good characteristics o
  • FIGS. 5 and 6 are cross-sectional views of a circular waveguide-to-microstrip line conversion section according to another embodiment of the present invention.
  • 10 is a metal housing having a circular waveguide 12, 6 is a boss fitting, and 7 is a MIC having a microstrip line.
  • the substrate, 8 is a post bracket 6 and a metal supporter for forming a hollow shaft line, and 9 is a dielectric support for forming the post bracket 6 and a dielectric coaxial line. It is.
  • the micro wave propagating in the circular waveguide 12 in the direction perpendicular to the plane of the paper is converted to the same mode by the six parts of the boss fitting. Then, the light propagates through the same line formed by 9 and 8, and is subjected to further mode conversion at the joint between the MIC substrate 7 and the mounting bracket 6. Propagate the cross-stripe line.
  • the metal spacer 8 In the waveguide-microstrip line converter as described above, there is sufficient contact between the metal spacer 8 and the metal housing 10. Otherwise, discontinuities will occur in the outer conductor of each coaxial line formed by the metal spacer 8 and the dielectric supporter 9, so that the distance between the metal conductor 8 and the dielectric supporter 9 may be reduced. It causes loss and VSWR degradation during clock wave propagation. Therefore, in FIG. 5 ', the concentric raised portion 10 is provided on the metal housing 1 side, and in FIG. 6, the metal support 8 is provided on the metal support 8 side. of 2 Sufficient contact is made in the outer conductor of the two coaxial lines, and good transmission characteristics can be ensured.
  • the concentric ridge is provided on the outer conductor forming one coaxial line, and the outer conductor of the other coaxial line is brought into contact with the outer conductor of the other coaxial line.
  • the present invention relates to a first metal housing having a concentric raised portion on the end face of a cylindrical microphone aperture transmission line and an outer side from a cylindrical inner wall, and a second planar shape.

Landscapes

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

Abstract

A microwave circuit in which a first metallic case (1, 10), which has on the end face of a cylindrical microwave transmission line a ring-like protruding part (3, 11), is in contact with a second metallic case (4) having a plane-like shape. Since, only in the narrow region of the protruding part (3, 11), it is reliably in contact with the second plane-like metallic case (4), the satisfactory electromagnetic contact between the cases is obtained, and desirable characteristics can be secured.

Description

明 柳  Willow willow
発明 の 名称 Title of invention
マ イ ク 口 波回路  Micro mouth circuit
技術分野 Technical field
本発明 は、 マ イ ク σ 波通信機器及 び衛星放送受信 コ ン パ 一 夕 な ど に 用 い ら れ る マ イ ク ロ 波回路で あ る 。  The present invention is a micro-wave circuit used for a micro-sigma-wave communication device and a satellite broadcast reception computer.
背景技術 Background art
近年、 マ イ ク ロ 波通信機器 に使用 さ れ る マ イ ク ロ 波素子の進 展 に は 目 ざ ま し い も の があ り 、 Η Ε Μ Τ や M E S — F Ε Τ な ど の低雑音 デ バ イ ス も 容易 に入手で き る た め 、 特 に 受信系低雑音 コ ン バ ー タ に お け る 雑音指数 は年々 低下 し て い る 。 し か し 、 低 雑音用 マ イ ク ロ 波素子 自 身 の雑音指数が よ く て も 、 入力部か ら マ イ ク 口 波素子 ま で の間 に存在す る 損失ゃ ィ ン ピ ー ダ ン ス 不整 合 に よ る 影響 は大 き く 、 低雑音 コ ン バ ー タ 全体 と し て所望 の雑 音指数が得 ら れ な い場合があ っ た 。  In recent years, there has been a remarkable progress in the development of microwave devices used in microwave communication devices, and the development of low-frequency devices such as Η Ε M and MES-F Ε Τ has been remarkable. Since noise devices are also readily available, the noise figure, especially for low-noise converters in the receiving system, is decreasing year by year. However, even if the noise figure of the low-noise micro wave element itself is good, the loss impedance that exists between the input section and the micro-mouth wave element is low. The effect of the noise mismatch was so large that the desired noise index could not be obtained for the low-noise converter as a whole.
以下、 図面 を参照 に し な 力 ら 、 上述 し た よ う な 従来の マ イ ク 口 波回路 に つ い て説明 を行 な う 。  Hereinafter, the conventional micro-wave circuit as described above will be described with reference to the drawings.
第 7 図 は 、 従来の 円形導波管短絡部を 、 第 8 図 は そ の 断面図 を示す も の で あ る 。 第 7 図 に お い て、 1 は 円形導波管 5 を有す る 金属製筐体 で あ り 、 2 は シ ョ ー ト 板 4 の取 り 付 け面で あ る 。 通常 シ ョ ー ト 板 2 は 、 ビ ス 等 に よ り 取 り 付 け面 2 へ固定 さ れ、 シ ョ ー ト 面 を 形成 す る 。 円 形導波管 5 を 伝搬 す る マ イ ク ロ 波 は 、 シ ョ ー ト 板 4 が理想的 な 短絡状態で あ る と 、 損失 な く 全反 射 を行 な い 、 伝搬方向 を変 え る 。  FIG. 7 shows a conventional circular waveguide short-circuit portion, and FIG. 8 shows a cross-sectional view thereof. In FIG. 7, reference numeral 1 denotes a metal housing having a circular waveguide 5, and reference numeral 2 denotes a mounting surface of the short board 4. Normally, the short plate 2 is fixed to the mounting surface 2 by a screw or the like to form a short surface. The microwave propagating through the circular waveguide 5 does not totally reflect without loss and changes its propagation direction when the short plate 4 is in an ideal short circuit state. .
し か し な が ら 前記 の よ う な 構成で は 、 取 り 付 け 面 2 の 面精度 パ ラ ツ キ及び シ ョ ー ト 板 4 の平面度バ ラ ツ キ に よ り 特に 円形導 波管の端面に おけ る接触が十分で な い た め、 シ ョ ー ト 板 4 は完 全な シ ョ 一 ト 面 と し て動作 し な い。 そ の た め 、 低雑音 コ ン パ ー 夕 の シ ョ ー ト 面を使 う 場合、 入力電力 を十分に反射で き な い た め雑音指数の劣化及び入力 V S W R劣化を も た ら す と い っ た問 題点を有 し て いた。 However, in such a configuration as described above, the surface accuracy of the mounting surface 2 is limited. Due to the flatness of the plate and the shortness of the short plate 4, the contact at the end face of the circular waveguide in particular was not sufficient, so the short plate 4 was completely Does not work as a short shot. For this reason, when using the short noise compo- nent shot surface, the input power cannot be sufficiently reflected, causing noise figure degradation and input VSWR degradation. Had the following problems.
本発明 は上記問題点に鑑み、 円柱状マ イ ク ロ 波伝送路を有す る第 1 の金属製筐体の外導体を第 2 の平面形状を有す る導体 'に 十分な接触を確保 し 、 良好な特性を示すマ イ ク ロ 波回路を提供 す る も の で あ る 。  In view of the above problems, the present invention secures sufficient contact between the outer conductor of the first metal housing having the cylindrical microwave transmission path and the conductor having the second planar shape. However, it is also intended to provide a microwave circuit exhibiting good characteristics.
発明 の開示 DISCLOSURE OF THE INVENTION
前記目 的を達成す る た め に、 本発明 の マ イ ク ロ 波回路は、 円 柱状マ イ ク 口 波伝送路の端面に 円柱状内壁か ら外側に同心円状 隆每部を有す る第 1 の金属製筐体 と 第 2 の平面形状を持つ金属 筐体を接触す る こ と に よ り 構成さ れ る 。  In order to achieve the above object, a microwave circuit according to the present invention has a concentric ridge at an end face of a cylindrical micro-wave transmission line outside a cylindrical inner wall. It is constituted by contacting the first metal housing and the metal housing having the second planar shape.
本発明 は上記の構成に よ っ て、 第 1 の金属製筐体の 円柱状内 壁よ り 外側に設けた隆起部だ け の狭い範囲で第 2 の平面形状を 持つ金属筐体 と接触す る た め、 各筐体間の電磁気的な接触が十 分 と れ、 良好な特性を確保で き る も の と な る 。  According to the present invention, according to the above configuration, the first metal housing is brought into contact with the metal housing having the second planar shape in a narrow range only in the raised portion provided outside the cylindrical inner wall. Therefore, the electromagnetic contact between the housings is sufficient, and good characteristics can be secured.
図面の簡単な説明 BRIEF DESCRIPTION OF THE FIGURES
第 1 図は本発明 の一実施例 に おけ る 円形導波管短絡部を示す 分解斜視図、 第 2 図は そ の断面図、 第 3 図は本発明 の他の実施 例 に よ る 円形導波管短絡部を示す分解斜視図、 第 4 図は そ の断 面図、 第 5 図及び第 6 図は本発明 の第 2 , 第 3 の実施例 におけ る 円形導波管 一 マ イ ク ロ ス ト リ .ツ プ ラ イ ン変換部 を示す断面 図、 第 7 図 は 従来 の 円形導波管短絡部 を示す 分解斜視図、 第 8 図 は そ の断面図で あ る 。 FIG. 1 is an exploded perspective view showing a short-circuit portion of a circular waveguide in one embodiment of the present invention, FIG. 2 is a cross-sectional view thereof, and FIG. 3 is a circular conductor according to another embodiment of the present invention. FIG. 4 is an exploded perspective view showing a short-circuit portion of a waveguide, FIG. 4 is a cross-sectional view of the same, and FIGS. 5 and 6 are views of one circular waveguide in the second and third embodiments of the present invention. Cross section showing the story-to-plane converter FIG. 7 is an exploded perspective view showing a conventional circular waveguide short-circuited portion, and FIG. 8 is a cross-sectional view thereof.
発明 を実施す る た め の最良 の形態 BEST MODE FOR CARRYING OUT THE INVENTION
以下本発明 の一実施例の マ イ ク 口 波回路 に つ い て図面を参照 し な が ら 説明 す る 。  DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A microphone / wave circuit according to one embodiment of the present invention will be described below with reference to the drawings.
第 1 図は、 本発明 の 円形導波管短絡部を 、 .第 2 図 は そ の断面 図を示す も の で あ る 。 第 1 図 に お い て 、 1 は 円形導波管 5 を有 す る 金属 製筐 体 で あ り 、 2 は シ ョ ー ト 板 4 の 取 り 付 け 面 で あ る 。 円形導波管 5 中 を伝搬す る マ イ ク ロ 波 は 、 シ ョ ー ト 板 4 で の短絡状態が十分で あ れ ば、 損失 な く 全反射 を行 な い 伝搬方向 を変え る 。 本実施例で は 、 シ ョ ー ト 板 2 は 、 取 り 付 け時 に お い て取 り 付 け面 2 に接す る 前 に 同心円状隆起部 3 に よ っ て接触を 取 る こ と が可能で あ る た め 、 シ ョ ー ト 面実現時 に 重要で あ る 円 形導波管 5 内壁部端面 に お け る シ ョ 一 ト 板 4 の接触が十分 と れ て 、 取 り 付 け面 2 の面精度 に 影響 さ れず良好 な 短絡特性 を'確保 で き る 。 又、 シ ョ ー ト 板 4 が こ れ ほ ど高 い平面度 を確保 し て い な く て も 、 取 り 付 け 面 2 と 接触 す る 前 に 円 形導波管 5 内 壁 と シ ョ ー ト 板 4 が接触す る た め 良好 な シ ョ ー ト 板が実現 で き る 。 以下本発明 の他の実施例 に つ い て、 図面を参照 し な が ら 説明 す ろ 。 第 3 図 は本発明 の他 の実施例 に お け る 円形導波管短絡部 を 、 第 4 図 は そ の 断面図を示す も の で あ る 。  Fig. 1 shows a short-circuit portion of a circular waveguide according to the present invention, and Fig. 2 shows a cross-sectional view thereof. In FIG. 1, 1 is a metal case having a circular waveguide 5, and 2 is a mounting surface of a short board 4. The microwave propagating in the circular waveguide 5 changes the propagation direction without loss and without total reflection if the short-circuit state in the short plate 4 is sufficient. In this embodiment, the short plate 2 is brought into contact with the concentric raised portion 3 before contacting the mounting surface 2 at the time of mounting. Since the short plate 4 at the inner wall end face of the circular waveguide 5, which is important when realizing the short surface, is Good short-circuit characteristics can be ensured without being affected by the surface accuracy of the cutting surface 2. Further, even if the short plate 4 does not have such a high flatness, the inner wall of the circular waveguide 5 and the short wall may be contacted before the short plate 4 comes into contact with the mounting surface 2. A good short plate can be realized because the short plate 4 comes into contact with the short plate. Hereinafter, another embodiment of the present invention will be described with reference to the drawings. FIG. 3 shows a short-circuited portion of a circular waveguide in another embodiment of the present invention, and FIG. 4 shows a cross-sectional view of the short-circuited portion.
第 3 図， 第 4 図 に お い て 、 1 0 は 円形導波管 1 2 を有す る 金 属製筐体で あ り 、 2 は シ ョ ー ト 板 の取 り 付 け面で あ り 、 1 1 は 同心円状隆起部であ る 。 本実施例 に おい て は同心円状隆起部 1 1 の 断面形状 を変え る こ と に よ っ て よ り 加工 を し 易 く し た も の で - A - あ り 、 前実施例 と 同 様 に 接触面 2 の 面精度 の 影響 を 受 け ず 、 シ ョ 一 ト 扳 4 が同心円状隆起部 1 1 に接触す る こ と に よ り 円形 導波管 1 2 の 短絡面は 十分良好 な 特性 を確保 す る こ と が で き る o In FIGS. 3 and 4, reference numeral 10 denotes a metal housing having a circular waveguide 12, and reference numeral 2 denotes a mounting surface of the short plate. , 11 are concentric ridges. In this embodiment, the processing is made easier by changing the cross-sectional shape of the concentric raised portion 11. In the same manner as in the previous embodiment, the circular guide is not affected by the surface accuracy of the contact surface 2 and the shot # 4 comes into contact with the concentric raised portion 11 as in the previous embodiment. The short-circuit surface of the waveguide tube 1 2 can ensure sufficiently good characteristics o
さ ら に、 本発明 の第 2 ， 第 3 の実施例 に つ い て図面 を参照 し な が ら 説明 す る 。 第 5 図及び第 6 図 は、 本発明 の他の実施例 に お け る 円形導波管 — マ イ ク ロ ス ト リ ッ プ ラ イ ン変換部の断面図 を示す も の で あ る 。  Further, second and third embodiments of the present invention will be described with reference to the drawings. FIGS. 5 and 6 are cross-sectional views of a circular waveguide-to-microstrip line conversion section according to another embodiment of the present invention.
1 0 は 円形導波管 1 2 を有す る 金属製筐体で あ り 、 6 は ボ ス ト 金具で あ り 、 7 は マ イ ク ロ ス ト リ ッ プ ラ イ ン を有す る M I C 基板、 8 は ポ ス ト 金具 6 と.中空 軸線路を形成す る た め の金属 製サ ポ ー タ 、 9 は ポ ス ト 金具 6 と 誘電体同軸線路を形成す る 誘 電体サ ポ ー タ で あ る 。  10 is a metal housing having a circular waveguide 12, 6 is a boss fitting, and 7 is a MIC having a microstrip line. The substrate, 8 is a post bracket 6 and a metal supporter for forming a hollow shaft line, and 9 is a dielectric support for forming the post bracket 6 and a dielectric coaxial line. It is.
第 5 図及び第 6 図に おいて、 紙面 と 垂直方向 に 円形導波管 1 2 中 を伝搬す る マ イ ク ロ 波 は 、 ボ ス ト 金具 6 部で 同轴 モ 一 ド へ変 換 さ れ、 9 及 び 8 で形成 さ れ る 同轴線路 を伝搬 し 、 M I C 基板 7 と ボ ス ト 金具 6 と の接合部で さ ら に モ ー ド変換が行わ れ、 M I C .基板 7 上の マ イ ク ロ ス ト リ ッ ブラ イ ン を伝搬す る 。  In FIG. 5 and FIG. 6, the micro wave propagating in the circular waveguide 12 in the direction perpendicular to the plane of the paper is converted to the same mode by the six parts of the boss fitting. Then, the light propagates through the same line formed by 9 and 8, and is subjected to further mode conversion at the joint between the MIC substrate 7 and the mounting bracket 6. Propagate the cross-stripe line.
以上の よ う な導波管 — マ イ ク ロ ス ト リ ッ プ ラ イ ン変換部 に お い て、 金属製 ス ぺ ー サ 8 と 金属製筐体 1 0 と の間で接触が十分 で な け れば、 金属製 ス ぺ 一 サ 8 と 誘電体サ ポ ー タ 9 が形成す る そ れぞれの 同軸線路 に お け る 外導体 に不連続部が生 じ る た め 、 マ イ ク ロ 波伝搬時 に は損失及 び V S W R 劣化の原因 と な る 。 そ こ で 、 第 5 図'で は 同心円状隆起部 1 0 を金属製筐体 1 側 に 、 第 6 図で は金属製サ ポ ー ト 8 側 に設 け る こ と に よ っ て、 前述の 2 つ の 同軸線路 の外導体部 に お け る 接触を十分 に と り 、 良好 な 伝 搬特性 を確保す る こ と がで き る 。 In the waveguide-microstrip line converter as described above, there is sufficient contact between the metal spacer 8 and the metal housing 10. Otherwise, discontinuities will occur in the outer conductor of each coaxial line formed by the metal spacer 8 and the dielectric supporter 9, so that the distance between the metal conductor 8 and the dielectric supporter 9 may be reduced. It causes loss and VSWR degradation during clock wave propagation. Therefore, in FIG. 5 ', the concentric raised portion 10 is provided on the metal housing 1 side, and in FIG. 6, the metal support 8 is provided on the metal support 8 side. of 2 Sufficient contact is made in the outer conductor of the two coaxial lines, and good transmission characteristics can be ensured.
以上の よ う に本実施例 に よ れば、 一方の 同軸線路を形成す る 外導体 に 同心 円状隆起部を設 け て、 他方の 同軸線路 の外導体 に 接触 さ せ る こ と に よ っ て、 同釉外導体に不連続部が生 じ る こ と に よ る 損失及 び V S W R 劣化 を防止 す る こ と がで き る 。  As described above, according to the present embodiment, the concentric ridge is provided on the outer conductor forming one coaxial line, and the outer conductor of the other coaxial line is brought into contact with the outer conductor of the other coaxial line. As a result, it is possible to prevent loss and VSWR deterioration due to the occurrence of discontinuities in the outer conductor of the glaze.
産業上 の利用可能性 Industrial applicability
以上 の よ う な本発明 は 、 円柱状 マ イ ク 口 波伝送路 の端面 に 円 柱状 内壁か ら 外側 に 同心円状隆起部 を有す る 第 1 の金属製筐体 と 第 2 の平面形状 を持つ金属筐体を接触す る こ と に よ り 、 マ イ ク ロ 波伝送路 に お け る 外導体部 の不連続を な く し 良好 な 伝送特 性を提供す る こ と がで き 、 そ の効果 は大な る も の があ る 。  As described above, the present invention relates to a first metal housing having a concentric raised portion on the end face of a cylindrical microphone aperture transmission line and an outer side from a cylindrical inner wall, and a second planar shape. By contacting the metal housing, the discontinuity of the outer conductor part in the microwave transmission line can be eliminated, and good transmission characteristics can be provided. The effect is significant.

Claims

• 請 求 の 範 囲 • The scope of the claims
1.内側を 円柱状 に切削す る こ と に よ っ て得 ら れ る マ イ ク 口 波伝 送路の端面 に 円柱状内壁か ら 外側 に 同心円状隆起部を有す る 第 1 の金属製筐体 と 、 平面形状 を有す る 第 2 の金属製筐体が十分 1. The first metal having concentric ridges on the end face of the mic mouth wave transmission path obtained by cutting the inside into a cylindrical shape, from the cylindrical inner wall to the outside. Enclosure and the second metal enclosure having a planar shape are sufficient
5 接触す る こ と を特徵 と し た マ イ ク ロ 波回路。 5 Microwave circuit that specializes in contact.
0 0
5 Five
0 0
5 Five
PCT/JP1991/001171 1990-09-03 1991-09-02 Microwave circuit WO1992004742A1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE69120052T DE69120052T2 (en) 1990-09-03 1991-09-02 MICROWAVE CONTROL
EP91915147A EP0500949B1 (en) 1990-09-03 1991-09-02 Microwave circuit
KR1019920701030A KR920702561A (en) 1990-09-03 1991-09-02 Microwave circuit

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2233500A JPH04113703A (en) 1990-09-03 1990-09-03 Microwave circuit
JP2/233500 1990-09-03

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WO1992004742A1 true WO1992004742A1 (en) 1992-03-19

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EP (1) EP0500949B1 (en)
JP (1) JPH04113703A (en)
KR (1) KR920702561A (en)
CA (1) CA2067729C (en)
DE (1) DE69120052T2 (en)
WO (1) WO1992004742A1 (en)

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JP2003032032A (en) * 2001-07-11 2003-01-31 Maspro Denkoh Corp Signal receiver for antenna

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JPH04115604A (en) * 1990-08-31 1992-04-16 Matsushita Electric Ind Co Ltd Microwave circuit
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JPS6030601B2 (en) * 1978-10-17 1985-07-17 新明和工業株式会社 garbage collection vehicle
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Publication number Priority date Publication date Assignee Title
JP2003032032A (en) * 2001-07-11 2003-01-31 Maspro Denkoh Corp Signal receiver for antenna

Also Published As

Publication number Publication date
EP0500949B1 (en) 1996-06-05
JPH04113703A (en) 1992-04-15
EP0500949A1 (en) 1992-09-02
EP0500949A4 (en) 1993-03-03
DE69120052T2 (en) 1997-01-23
CA2067729A1 (en) 1992-03-04
CA2067729C (en) 1997-02-11
KR920702561A (en) 1992-09-04
DE69120052D1 (en) 1996-07-11

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