JPS6361812U - - Google Patents
Info
- Publication number
- JPS6361812U JPS6361812U JP15577486U JP15577486U JPS6361812U JP S6361812 U JPS6361812 U JP S6361812U JP 15577486 U JP15577486 U JP 15577486U JP 15577486 U JP15577486 U JP 15577486U JP S6361812 U JPS6361812 U JP S6361812U
- Authority
- JP
- Japan
- Prior art keywords
- variable attenuator
- voltage
- amplifying section
- control
- power amplifying
- 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 2
- 230000005284 excitation Effects 0.000 description 1
Landscapes
- Transmitters (AREA)
- Control Of Amplification And Gain Control (AREA)
- Amplifiers (AREA)
Description
第１図は本考案の全体構成を示すブロツク図、
第２図は従来の全体構成を示すブロツク図である
。 １：前段部、２：励振部、３：可変減衰器、４
：ＰＡ部、５：方向性結合器、６：ＢＰＦ、７：
アンテナ、８：可変減衰器制御部、１０：検波器
、１１：基準電圧発生部、１２：電圧比較器。
第２図は従来の全体構成を示すブロツク図である
。 １：前段部、２：励振部、３：可変減衰器、４
：ＰＡ部、５：方向性結合器、６：ＢＰＦ、７：
アンテナ、８：可変減衰器制御部、１０：検波器
、１１：基準電圧発生部、１２：電圧比較器。
Claims (1)
- 送信装置の電力増幅部の前段に制御電圧により
制御可能な可変減衰器を設け、前記電力増幅部の
後段より戻つてくる反射電力を前記電力増幅部の
出力端に設けた方向性結合器を介して取り出し、
この反射電力を検波した電圧と基準電圧とを比較
して前記可変減衰器の制御電圧を得ると共に、こ
の制御電圧に正比例して前記可変減衰器の減衰量
を可変する可変減衰器制御部を設けたことを特徴
とする送信出力反射時の制御回路。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15577486U JPS6361812U (ja) | 1986-10-13 | 1986-10-13 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15577486U JPS6361812U (ja) | 1986-10-13 | 1986-10-13 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6361812U true JPS6361812U (ja) | 1988-04-23 |
Family
ID=31076779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15577486U Pending JPS6361812U (ja) | 1986-10-13 | 1986-10-13 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6361812U (ja) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013502848A (ja) * | 2009-08-19 | 2013-01-24 | クゥアルコム・インコーポレイテッド | 電力増幅器の保護回路 |
| US8750810B2 (en) | 2009-07-24 | 2014-06-10 | Qualcomm Incorporated | Power amplifier with switched output matching for multi-mode operation |
| US8963611B2 (en) | 2009-06-19 | 2015-02-24 | Qualcomm Incorporated | Power and impedance measurement circuits for a wireless communication device |
| US9000847B2 (en) | 2009-08-19 | 2015-04-07 | Qualcomm Incorporated | Digital tunable inter-stage matching circuit |
| US9143172B2 (en) | 2009-06-03 | 2015-09-22 | Qualcomm Incorporated | Tunable matching circuits for power amplifiers |
-
1986
- 1986-10-13 JP JP15577486U patent/JPS6361812U/ja active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US9143172B2 (en) | 2009-06-03 | 2015-09-22 | Qualcomm Incorporated | Tunable matching circuits for power amplifiers |
| US8963611B2 (en) | 2009-06-19 | 2015-02-24 | Qualcomm Incorporated | Power and impedance measurement circuits for a wireless communication device |
| US8750810B2 (en) | 2009-07-24 | 2014-06-10 | Qualcomm Incorporated | Power amplifier with switched output matching for multi-mode operation |
| JP2013502848A (ja) * | 2009-08-19 | 2013-01-24 | クゥアルコム・インコーポレイテッド | 電力増幅器の保護回路 |
| US9000847B2 (en) | 2009-08-19 | 2015-04-07 | Qualcomm Incorporated | Digital tunable inter-stage matching circuit |
| US9559639B2 (en) | 2009-08-19 | 2017-01-31 | Qualcomm Incorporated | Protection circuit for power amplifier |