JPS6224539U - - Google Patents
Info
- Publication number
- JPS6224539U JPS6224539U JP11617485U JP11617485U JPS6224539U JP S6224539 U JPS6224539 U JP S6224539U JP 11617485 U JP11617485 U JP 11617485U JP 11617485 U JP11617485 U JP 11617485U JP S6224539 U JPS6224539 U JP S6224539U
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- transmitter
- power
- signal
- mismatching
- 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
- 238000010586 diagram Methods 0.000 description 3
Description
第１図は本考案に係るアンテナチユーナ保護回
路の実施例を示すブロツク図、第２図は第１図に
示す比較回路２４，４６の具体的な回路図、第３
図は従来例を示すブロツク図である。
１４……インピーダンスマツチング回路、１６
……アンテナカツプラー部、２４，４６……比較
回路、４４……保護回路。
FIG. 1 is a block diagram showing an embodiment of the antenna tuner protection circuit according to the present invention, FIG. 2 is a specific circuit diagram of the comparison circuits 24 and 46 shown in FIG. 1, and FIG.
The figure is a block diagram showing a conventional example. 14... Impedance matching circuit, 16
... Antenna coupler section, 24, 46 ... Comparison circuit, 44 ... Protection circuit.
Claims (1)
あるときにミスマツチング信号を出力する比較手
段と、当該ミスマツチング信号を入力したときに
送信部へパワーダウン信号を出力するパワーダウ
ン信号出力手段とにより、アンテナチユーニング
動作終了時においても前記ミスマツチング信号に
より送信部のパワーを制限し、アンテナカプラー
を保護することを特徴とするアンテナチユーナ保
護回路。 Comparing means for outputting a mismatching signal when the standing wave ratio between the antenna and the transmitter is equal to or higher than a set value; and power-down signal output means for outputting a power-down signal to the transmitter when the mismatching signal is input. An antenna tuner protection circuit characterized in that the power of the transmitter is limited by the mismatching signal even at the end of the antenna tuning operation to protect the antenna coupler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11617485U JPS6224539U (en) | 1985-07-29 | 1985-07-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11617485U JPS6224539U (en) | 1985-07-29 | 1985-07-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6224539U true JPS6224539U (en) | 1987-02-14 |
Family
ID=31000518
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11617485U Pending JPS6224539U (en) | 1985-07-29 | 1985-07-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6224539U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63248225A (en) * | 1987-04-03 | 1988-10-14 | Anritsu Corp | Automatic tuning device |
| JPS6440568U (en) * | 1987-08-31 | 1989-03-10 | ||
| JPH0217774U (en) * | 1988-07-18 | 1990-02-06 | ||
| JP2007097031A (en) * | 2005-09-30 | 2007-04-12 | Kenwood Corp | Output circuit protecting apparatus for radio unit |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5146888U (en) * | 1974-10-04 | 1976-04-07 | ||
| JPS57201344A (en) * | 1981-06-03 | 1982-12-09 | Mitsubishi Electric Corp | Controlling device for transmitted output |
-
1985
- 1985-07-29 JP JP11617485U patent/JPS6224539U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5146888U (en) * | 1974-10-04 | 1976-04-07 | ||
| JPS57201344A (en) * | 1981-06-03 | 1982-12-09 | Mitsubishi Electric Corp | Controlling device for transmitted output |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63248225A (en) * | 1987-04-03 | 1988-10-14 | Anritsu Corp | Automatic tuning device |
| JPS6440568U (en) * | 1987-08-31 | 1989-03-10 | ||
| JPH0217774U (en) * | 1988-07-18 | 1990-02-06 | ||
| JP2007097031A (en) * | 2005-09-30 | 2007-04-12 | Kenwood Corp | Output circuit protecting apparatus for radio unit |
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