JPS58534U - Connection circuit between antenna terminal and high frequency circuit - Google Patents
Connection circuit between antenna terminal and high frequency circuitInfo
- Publication number
- JPS58534U JPS58534U JP9502581U JP9502581U JPS58534U JP S58534 U JPS58534 U JP S58534U JP 9502581 U JP9502581 U JP 9502581U JP 9502581 U JP9502581 U JP 9502581U JP S58534 U JPS58534 U JP S58534U
- Authority
- JP
- Japan
- Prior art keywords
- terminal
- circuit
- characteristic impedance
- antenna
- high frequency
- 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
Links
Landscapes
- Insulated Conductors (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図はこの考案のアンテナ端子と高周波回路との接続
回路図、第２区はこの考案に使用するフラットケーブル
の特性インピーダンスの説明図である。
１・・・・・・アンテナ端子、１ａ・・・・・・７５Ω
端子、１ａと１ｂ間・・・・・・３００Ω端子、１Ｃ・
・・・・・アース端子、２・・・・・・高周波回路、Ｔ
・・・・・・高周波回路を構成するＲＦコイル、Ｔ１・
・・・・ｅ−次コイル、Ｔ２・…・・工学コイル、ａ・
・・・・・一端、ｂ・・・・・・他端、Ｃ・・・・・・
中点、３・・・・・・フラットケーブル、３ａ・・・・
・・絶ａ体、Ｗｌ、 ｗ２゜Ｗ、、 Ｗ、・・・・・・
導線。Fig. 1 is a connection circuit diagram between the antenna terminal and the high frequency circuit of this invention, and Section 2 is an explanatory diagram of the characteristic impedance of the flat cable used in this invention. 1...Antenna terminal, 1a...75Ω
Between terminals 1a and 1b...300Ω terminal, 1C.
...Earth terminal, 2...High frequency circuit, T
...RF coil that constitutes the high frequency circuit, T1.
...e-order coil, T2...engineering coil, a.
...One end, B...Other end, C...
Midpoint, 3...Flat cable, 3a...
...extreme body, Wl, w2゜W,, W,...
Conductor.
Claims (1)
ブルあるいは特性インピーダンス３００Ωのリボンフィ
ーダーを接続し得る７５Ω端子、３００Ω端子、および
アース端子を備えたアンテナ端子と、このアンテナ端子
と高周波回路との間に接続する少なくとも４つの導線が
ほぼ等間隔でほぼ平行に平板状に絶縁被覆されたフラッ
トケーブルとよりなり、このフラットケーブルは、１つ
の導線を挾んで配置されている導線間の特性インピーダ
ンスがほぼ３００Ωに、また、上記１つの導線とそれを
挾んで配置された２つの導線を共通に接続した接続端と
の間の特性インピーダンスがほぼ７５Ωとなっており、
上記アンテナ端子に備えた７５Ω端子、３００Ω端子、
およびアース端子と、これら各端子と対応する高周波回
路の各端子間に、上記フラットケーブルの各導線を、導
線間に上記特性インピーダンスが得られる導線間を接続
したことを特徴とするアンテナ端子と高周波回路との接
続回路。An antenna terminal equipped with a 75Ω terminal, a 300Ω terminal, and a ground terminal to which a coaxial cable with a characteristic impedance of 5Ω or a ribbon feeder with a characteristic impedance of 300Ω can be connected between the antenna and the high-frequency circuit. It consists of a flat cable in which at least four conducting wires are insulated and coated in a flat plate at approximately equal intervals and in parallel, and the characteristic impedance between the conducting wires that are arranged with one conducting wire in between is approximately 300Ω. In addition, the characteristic impedance between the above-mentioned one conductive wire and the connecting end where the two conductive wires arranged sandwiching it are commonly connected is approximately 75Ω,
75Ω terminal, 300Ω terminal provided for the above antenna terminal,
An antenna terminal and a high frequency antenna, characterized in that each conductor of the flat cable is connected between a ground terminal and each terminal of a high frequency circuit that corresponds to each of these terminals, and the conductors that provide the characteristic impedance described above are connected between the conductors. Connection circuit with circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9502581U JPS58534U (en) | 1981-06-26 | 1981-06-26 | Connection circuit between antenna terminal and high frequency circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9502581U JPS58534U (en) | 1981-06-26 | 1981-06-26 | Connection circuit between antenna terminal and high frequency circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58534U true JPS58534U (en) | 1983-01-05 |
| JPS6325781Y2 JPS6325781Y2 (en) | 1988-07-13 |
Family
ID=29889946
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9502581U Granted JPS58534U (en) | 1981-06-26 | 1981-06-26 | Connection circuit between antenna terminal and high frequency circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58534U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006351445A (en) * | 2005-06-17 | 2006-12-28 | Kurabe Ind Co Ltd | Parallel wire |
-
1981
- 1981-06-26 JP JP9502581U patent/JPS58534U/en active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006351445A (en) * | 2005-06-17 | 2006-12-28 | Kurabe Ind Co Ltd | Parallel wire |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6325781Y2 (en) | 1988-07-13 |
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