JPH02141146U - - Google Patents
Info
- Publication number
- JPH02141146U JPH02141146U JP1989050568U JP5056889U JPH02141146U JP H02141146 U JPH02141146 U JP H02141146U JP 1989050568 U JP1989050568 U JP 1989050568U JP 5056889 U JP5056889 U JP 5056889U JP H02141146 U JPH02141146 U JP H02141146U
- Authority
- JP
- Japan
- Prior art keywords
- control system
- feedback control
- antenna tuner
- antenna
- tuning
- 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
- 238000001514 detection method Methods 0.000 claims description 3
- 239000003990 capacitor Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000004020 conductor Substances 0.000 description 1
Landscapes
- Transceivers (AREA)
- Transmitters (AREA)
Description
第１図は本考案にかかるアンテナチユーナの保護
回路の実施例のブロツク図、第２図は前記アンテ
ナチユーナの同調回路の一例の結線図、第３図は
アンテナチユーナの使用形態を示すブロツク図で
ある。
１……アンテナチユーナ、２……送・受信機、
５……調節範囲逸脱検出回路（調節範囲逸脱検知
手段）、６……スルー切り換えリレー（アンテナ
チユーナ切り換え手段）、８……スルー用導線。
FIG. 1 is a block diagram of an embodiment of a protection circuit for an antenna tuner according to the present invention, FIG. 2 is a connection diagram of an example of a tuning circuit for the antenna tuner, and FIG. 3 is a diagram showing how the antenna tuner is used. It is a block diagram. 1... Antenna tuner, 2... Transmitter/receiver,
5...Adjustment range deviation detection circuit (adjustment range deviation detection means), 6...Through switching relay (antenna tuner switching means), 8...Through conductor.
Claims (1)
ンテナと送信機との間に介挿接続するアンテナチ
ユーナに於いて、送信機の運用周波数帯の切り換
えに応じて、同調素子の回路定数を、運用状態で
のＶＳＷＲ（定在波比）が最小値となるように設
定された基準電圧設定器による基準電圧を基に運
用周波数毎に適する値になるように制御するブリ
セツト用フイードバツク制御系と、上記アンテナ
のインピーダンスに応じて同調素子を制御するオ
ートチユーニング用フイードバツク制御系と、運
用周波数帯切り換え操作時には前記プリセツト用
フイードバツク制御系に切り換え、切り換え操作
時から一定時間後には前記オートチユーニング用
フイードバツク制御系に切り換えるスイツチ回路
とを備えたアンテナチユーナにおいて、 前記同調素子の所定の調節範囲を逸脱したこと
を検知して範囲逸脱信号を出力する調節範囲逸脱
検知手段と、 前記範囲逸脱信号によつて、前記アンテナチユ
ーナの入力と出力を直結してアンテナチユーナを
バイパスさせるアンテナチユーナ切り換え手段と
を備えたアンテナチユーナの保護回路。[Claims for Utility Model Registration] In an antenna tuner that consists of tuning elements such as a capacitor and a coil and is inserted and connected between an antenna and a transmitter, the tuning element For brisseting, the circuit constants are controlled to appropriate values for each operating frequency based on the reference voltage set by the reference voltage setting device, which is set so that the VSWR (standing wave ratio) in the operating state is the minimum value. a feedback control system, an autotuning feedback control system that controls the tuning element according to the impedance of the antenna, and a preset feedback control system that switches to the preset feedback control system when switching operation frequency bands; An antenna tuner equipped with a switch circuit for switching to an auto-tuning feedback control system, comprising: an adjustment range deviation detection means for detecting deviation from a predetermined adjustment range of the tuning element and outputting a range deviation signal; An antenna tuner protection circuit comprising antenna tuner switching means for bypassing the antenna tuner by directly connecting the input and output of the antenna tuner in response to a range deviation signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989050568U JPH0737386Y2 (en) | 1989-04-28 | 1989-04-28 | Antenna tuner protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989050568U JPH0737386Y2 (en) | 1989-04-28 | 1989-04-28 | Antenna tuner protection circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02141146U true JPH02141146U (en) | 1990-11-27 |
| JPH0737386Y2 JPH0737386Y2 (en) | 1995-08-23 |
Family
ID=31569223
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989050568U Expired - Lifetime JPH0737386Y2 (en) | 1989-04-28 | 1989-04-28 | Antenna tuner protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0737386Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04334129A (en) * | 1991-05-09 | 1992-11-20 | Yaesu Musen Co Ltd | Alc circuit |
-
1989
- 1989-04-28 JP JP1989050568U patent/JPH0737386Y2/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04334129A (en) * | 1991-05-09 | 1992-11-20 | Yaesu Musen Co Ltd | Alc circuit |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0737386Y2 (en) | 1995-08-23 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |