JPS60111149U - antenna switching circuit - Google Patents
antenna switching circuitInfo
- Publication number
- JPS60111149U JPS60111149U JP20146983U JP20146983U JPS60111149U JP S60111149 U JPS60111149 U JP S60111149U JP 20146983 U JP20146983 U JP 20146983U JP 20146983 U JP20146983 U JP 20146983U JP S60111149 U JPS60111149 U JP S60111149U
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- circuit
- pass filter
- low
- switching circuit
- 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.)
- Pending
Links
Landscapes
- Electronic Switches (AREA)
- Transceivers (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、第3図はこの考案を説明するための図、第2図
はこの考案の一例の接続図である。
2は送信回路、4は受信回路である。1 and 3 are diagrams for explaining this invention, and FIG. 2 is a connection diagram of an example of this invention. 2 is a transmitting circuit, and 4 is a receiving circuit.
Claims (1)
のダイオードとスプリアス除去用のローパスフィルタと
が直列接続され、上記アンテナと受信回路の入力端との
間に、1波長回路が直列液続されると共に、この4波長
回路の出力端にシャント用のダイオードが接続され、上
記スイッチング用のダイオードと上記ローパスフィルタ
との接続点に、上記アンテナから上記ローパスフィルタ
側を見たときのインピーダンスを十分に大きくするよう
に値が選定されたりアクタンス素子が接続されたアンテ
ナ切り換え回路。A switching diode and a low-pass filter for spurious removal are connected in series between the output end of the transmitter circuit and the antenna, and a one-wavelength circuit is connected in series between the antenna and the input end of the receiver circuit. At the same time, a shunt diode is connected to the output end of this four-wavelength circuit, and a shunt diode is connected to the connection point between the switching diode and the low-pass filter, so that the impedance when looking at the low-pass filter side from the antenna is sufficiently high. Antenna switching circuit with a value selected or an actance element connected to increase the value.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20146983U JPS60111149U (en) | 1983-12-28 | 1983-12-28 | antenna switching circuit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20146983U JPS60111149U (en) | 1983-12-28 | 1983-12-28 | antenna switching circuit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS60111149U true JPS60111149U (en) | 1985-07-27 |
Family
ID=30763288
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20146983U Pending JPS60111149U (en) | 1983-12-28 | 1983-12-28 | antenna switching circuit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS60111149U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60124146U (en) * | 1984-01-27 | 1985-08-21 | 日本電気株式会社 | antenna switching circuit |
-
1983
- 1983-12-28 JP JP20146983U patent/JPS60111149U/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60124146U (en) * | 1984-01-27 | 1985-08-21 | 日本電気株式会社 | antenna switching circuit |
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