JPH02147945U - - Google Patents
Info
- Publication number
- JPH02147945U JPH02147945U JP5788089U JP5788089U JPH02147945U JP H02147945 U JPH02147945 U JP H02147945U JP 5788089 U JP5788089 U JP 5788089U JP 5788089 U JP5788089 U JP 5788089U JP H02147945 U JPH02147945 U JP H02147945U
- Authority
- JP
- Japan
- Prior art keywords
- receiving
- frequency signal
- signal amplifying
- variable gain
- amplifying 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
- 230000003321 amplification Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000003199 nucleic acid amplification method Methods 0.000 description 2
Landscapes
- Radio Relay Systems (AREA)
Description
第１図は本考案の一実施例の構成図、第２図は
従来のＦＰＵ受信用のマイクロ波受信装置の構成
図である。
１……受信入力端子、２……可変利得受信周波
信号増幅回路、３……ミキサ回路、４……利得制
御用直流電圧切替回路、１２……受信周波数信号
増幅回路、１３……可変減衰器、１４……ミキサ
回路、１５……直流電圧切替回路。
FIG. 1 is a block diagram of an embodiment of the present invention, and FIG. 2 is a block diagram of a conventional microwave receiver for FPU reception. DESCRIPTION OF SYMBOLS 1...Reception input terminal, 2...Variable gain reception frequency signal amplification circuit, 3...Mixer circuit, 4...DC voltage switching circuit for gain control, 12...Reception frequency signal amplification circuit, 13...Variable attenuator , 14...mixer circuit, 15...DC voltage switching circuit.
Claims (1)
する為のミキサ回路との間に可変利得受信周波信
号増幅回路を備え、前記可変利得受信周波信号増
幅回路に供給する利得制御用直流電圧を変化する
手段を備えて成ることを特徴とするマイクロ波受
信装置。 A variable gain receiving frequency signal amplifying circuit is provided between the receiving input terminal and a mixer circuit for converting the receiving frequency to an intermediate frequency, and means for changing a gain control DC voltage supplied to the variable gain receiving frequency signal amplifying circuit. A microwave receiving device comprising:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5788089U JPH02147945U (en) | 1989-05-18 | 1989-05-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5788089U JPH02147945U (en) | 1989-05-18 | 1989-05-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02147945U true JPH02147945U (en) | 1990-12-17 |
Family
ID=31582989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5788089U Pending JPH02147945U (en) | 1989-05-18 | 1989-05-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02147945U (en) |
-
1989
- 1989-05-18 JP JP5788089U patent/JPH02147945U/ja active Pending