JPH0164214U - - Google Patents
Info
- Publication number
- JPH0164214U JPH0164214U JP1987158878U JP15887887U JPH0164214U JP H0164214 U JPH0164214 U JP H0164214U JP 1987158878 U JP1987158878 U JP 1987158878U JP 15887887 U JP15887887 U JP 15887887U JP H0164214 U JPH0164214 U JP H0164214U
- Authority
- JP
- Japan
- Prior art keywords
- gate
- amplification circuit
- agc voltage
- transistor
- frequency amplification
- 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 claims description 5
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 5
- 230000005669 field effect Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 5
Landscapes
- Control Of Amplification And Gain Control (AREA)
Description
第１図は本考案を実施した高周波増幅回路を示
す図、第２図は本考案の効果を説明するための図
、第３図はチユーナのブロツク図、第４図は従来
の高周波増幅回路を示す図、第５図はＦＥＴの特
性を示す図である。
Ｔｒ……電界効果トランジスタ、Ｇ１……第１
ゲート、Ｇ２……第２ゲート、Ｒ３，Ｒ３′……
抵抗。
Fig. 1 is a diagram showing a high frequency amplification circuit implementing the present invention, Fig. 2 is a diagram for explaining the effects of the present invention, Fig. 3 is a block diagram of a tuner, and Fig. 4 is a diagram showing a conventional high frequency amplification circuit. The figure shown in FIG. 5 is a diagram showing the characteristics of the FET. Tr...field effect transistor, G1 ...first
Gate, G2 ... Second gate, R3 , R3 '...
resistance.
Claims (1)
ＡＧＣ電圧を印加するようにした電界効果トラン
ジスタを増幅素子とした高周波増幅回路において
、前記ＡＧＣ電圧は抵抗分割によつて前記トラン
ジスタの第２ゲートに印加されるようにされてい
る高周波増幅回路。 In a high-frequency amplification circuit using a field effect transistor as an amplification element in which a high-frequency signal is applied to a first gate and an AGC voltage is applied to a second gate, the AGC voltage is applied to the second gate of the transistor by resistance division. A high frequency amplification circuit that is designed to be applied.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987158878U JPH0164214U (en) | 1987-10-16 | 1987-10-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987158878U JPH0164214U (en) | 1987-10-16 | 1987-10-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0164214U true JPH0164214U (en) | 1989-04-25 |
Family
ID=31439604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987158878U Pending JPH0164214U (en) | 1987-10-16 | 1987-10-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0164214U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6155289A (en) * | 1984-08-17 | 1986-03-19 | 旭化成株式会社 | Latex for coating paper |
-
1987
- 1987-10-16 JP JP1987158878U patent/JPH0164214U/ja active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6155289A (en) * | 1984-08-17 | 1986-03-19 | 旭化成株式会社 | Latex for coating paper |