JPH0514589Y2 - - Google Patents
Info
- Publication number
- JPH0514589Y2 JPH0514589Y2 JP1988153516U JP15351688U JPH0514589Y2 JP H0514589 Y2 JPH0514589 Y2 JP H0514589Y2 JP 1988153516 U JP1988153516 U JP 1988153516U JP 15351688 U JP15351688 U JP 15351688U JP H0514589 Y2 JPH0514589 Y2 JP H0514589Y2
- Authority
- JP
- Japan
- Prior art keywords
- transmission power
- directional coupler
- output
- radio device
- lines
- 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.)
- Expired - Lifetime
Links
- 238000001514 detection method Methods 0.000 claims description 11
- 230000008878 coupling Effects 0.000 claims description 9
- 238000010168 coupling process Methods 0.000 claims description 9
- 238000005859 coupling reaction Methods 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 8
- 230000007423 decrease Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000284 extract Substances 0.000 description 1
Landscapes
- Monitoring And Testing Of Transmission In General (AREA)
- Transmitters (AREA)
Description
【考案の詳細な説明】
〔産業上の利用分野〕
本考案は無線機の送信電力増幅器の送信電力検
出に関するものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to detection of transmission power of a transmission power amplifier of a radio device.
送信電力の一部を取り出す方向性結合器を有す
る無線機において、プリント基板上に形成された
主線路の両側に方向性結合用線路を設け、その線
路を並列接続し、送信電力増幅器の電力検出出力
を従来の２倍取り出すようにした。
In radio equipment that has a directional coupler that extracts a portion of the transmission power, directional coupling lines are provided on both sides of the main line formed on the printed circuit board, and the lines are connected in parallel to detect the power of the transmission power amplifier. The output is now twice as much as before.
無線機の送信電力増幅器における送信電力検出
回路で進行波の検出は、１組の結合ループにより
取り出していた。
Detection of traveling waves in a transmission power detection circuit in a transmission power amplifier of a wireless device has been performed using a pair of coupling loops.
従来方式では、方向性結合器の共振用インダク
タが短くなつた場合及び周波数が低下した場合に
結合量が減少し、検出出力が低下する欠点があつ
た。
The conventional method has the disadvantage that when the resonant inductor of the directional coupler becomes short or when the frequency decreases, the amount of coupling decreases and the detection output decreases.
〔課題を解決するための手段〕
本考案は上記問題点を解決するため、方向性結
合器の結合ループを２組にし、検出出力を２倍に
したものである。[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention has two coupling loops of directional couplers and doubles the detection output.
その結果、方向性結合器の進行波検出出力が通
常の２倍得られる。
As a result, the traveling wave detection output of the directional coupler can be obtained twice as much as the normal traveling wave detection output.
以下、この動作について説明する。 This operation will be explained below.
送信部１の出力は、電力増幅部２により増幅さ
れ、共振用インダクタ５に接続され、LPF９を
経てアンテナ１０へ出力される。方向性結合器３
内結合ループ(1)４及び結合ループ(2)６からの送信
出力の進行波成分を検波器７で検波し、検出端子
８から取り出すことができる。 The output of the transmitter 1 is amplified by a power amplifier 2, connected to a resonant inductor 5, and output to an antenna 10 via an LPF 9. Directional coupler 3
The traveling wave components of the transmission outputs from the inner coupling loop (1) 4 and the coupling loop (2) 6 can be detected by the detector 7 and taken out from the detection terminal 8.
本考案によれば、検出出力を増幅することなく
高い検出出力が得られる無線機が実現できる。
According to the present invention, it is possible to realize a radio device that can obtain a high detection output without amplifying the detection output.
第１図は、本考案の全体構成を示すブロツク
図、第２図は従来のブロツク図である。
１……送信部、２……電力増幅部、３……方向
性結合器、４……結合ループ(1)、５……共振用イ
ンダクタ、６……結合ループ(2)、７……検波器、
８……検波出力端子、９……LPF、１０……ア
ンテナである。
FIG. 1 is a block diagram showing the overall configuration of the present invention, and FIG. 2 is a block diagram of a conventional device. 1: Transmitter, 2: Power amplifier, 3: Directional coupler, 4: Coupling loop (1), 5: Resonant inductor, 6: Coupling loop (2), 7: Detector,
8: detector output terminal, 9: LPF, 10: antenna.
Claims (1)
向性結合器を有する無線機において、プリント基
板上に形成された主線路の両側に方向性結合用線
路を設け、当該線路を並列接続することを特徴と
する無線機送信電力検出回路。 In a radio device that has a directional coupler that takes out a part of the transmitted power in the transmitting section of the radio device, directional coupling lines are provided on both sides of the main line formed on the printed circuit board, and the lines are connected in parallel. A radio transmission power detection circuit featuring:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988153516U JPH0514589Y2 (en) | 1988-11-28 | 1988-11-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988153516U JPH0514589Y2 (en) | 1988-11-28 | 1988-11-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0273834U JPH0273834U (en) | 1990-06-06 |
| JPH0514589Y2 true JPH0514589Y2 (en) | 1993-04-19 |
Family
ID=31429426
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988153516U Expired - Lifetime JPH0514589Y2 (en) | 1988-11-28 | 1988-11-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0514589Y2 (en) |
-
1988
- 1988-11-28 JP JP1988153516U patent/JPH0514589Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0273834U (en) | 1990-06-06 |
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