JPS58176440U - Low noise amplifier input circuit - Google Patents
Low noise amplifier input circuitInfo
- Publication number
- JPS58176440U JPS58176440U JP7336582U JP7336582U JPS58176440U JP S58176440 U JPS58176440 U JP S58176440U JP 7336582 U JP7336582 U JP 7336582U JP 7336582 U JP7336582 U JP 7336582U JP S58176440 U JPS58176440 U JP S58176440U
- Authority
- JP
- Japan
- Prior art keywords
- input circuit
- noise amplifier
- low noise
- amplifier input
- input
- 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
Landscapes
- Microwave Amplifiers (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は従来の低雑音増幅器の入力回路、第２図は直流
阻止用コンデンサの例、第３図は本考案の一実施例回路
図、第４図はその具体的構成図、第５図はその特性図で
ある。
１・・・・・・導波管、２・・・・・・プローブ、３・
・・・・・アイソレータ、４・・・・・・抵抗、５・・
・・・・直流阻止用コンアン □す、６．７・・・・・
・イッダクタ、８・・・・・・バイパスコンデンサ、９
９・・・・・・Ｇａ Ａｓ ＦＥＴ、 １０・・
・・・・コンデンサ、１１・・・・・・絶縁棒、１２・
・・・・・基板、１３・・・・・・セラミック基板、１
４・・・・・・マイクｏＩｃ基板、１５・・・・・・枠
体。Fig. 1 shows the input circuit of a conventional low-noise amplifier, Fig. 2 shows an example of a DC blocking capacitor, Fig. 3 shows a circuit diagram of an embodiment of the present invention, Fig. 4 shows its specific configuration, and Fig. 5 is its characteristic diagram. 1... Waveguide, 2... Probe, 3.
...Isolator, 4...Resistor, 5...
...DC blocking condenser □su, 6.7...
・Idductor, 8... Bypass capacitor, 9
9...Ga As FET, 10...
... Capacitor, 11 ... Insulation rod, 12.
...Substrate, 13... Ceramic board, 1
4... Microphone oIc board, 15... Frame body.
Claims (1)
タの反射波吸収端を抵抗を介してコンデンサで接地する
とともに、前記アイソレータの出力端を直流的に増幅素
子の入力電極に接続したことを特徴とする低雑音増幅器
の入力回路。 ２ 前記抵抗とコンデンサとの接続点に前記増幅素子の
バイアス電圧を印加したことを特徴とする実用新案登録
請求の範囲第１項記載の低雑音増幅器の入力回路。 ３ 前記プローブを絶縁体で覆ったことを特徴とする実
用新案登録請求の範囲第１項記載の低雑音増幅器の入力
回路。[Claims for Utility Model Registration] 1. The reflected wave absorbing end of an isolator whose input end is connected to a waveguide probe is grounded by a capacitor via a resistor, and the output end of the isolator is connected to an amplifier element using direct current. An input circuit for a low noise amplifier, characterized in that the input circuit is connected to an input electrode. 2. The input circuit for a low-noise amplifier according to claim 1, wherein a bias voltage of the amplifying element is applied to a connection point between the resistor and the capacitor. 3. The input circuit for a low noise amplifier according to claim 1, wherein the probe is covered with an insulator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7336582U JPS58176440U (en) | 1982-05-19 | 1982-05-19 | Low noise amplifier input circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7336582U JPS58176440U (en) | 1982-05-19 | 1982-05-19 | Low noise amplifier input circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58176440U true JPS58176440U (en) | 1983-11-25 |
| JPS643243Y2 JPS643243Y2 (en) | 1989-01-27 |
Family
ID=30082874
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7336582U Granted JPS58176440U (en) | 1982-05-19 | 1982-05-19 | Low noise amplifier input circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58176440U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5544487A (en) * | 1978-09-26 | 1980-03-28 | Mitsubishi Electric Corp | Fish transfer device in fish pond |
| JPS5622803U (en) * | 1979-07-25 | 1981-02-28 |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5454997A (en) * | 1977-10-11 | 1979-05-01 | Mitsubishi Gas Chem Co Inc | Manufacture of dithionites |
-
1982
- 1982-05-19 JP JP7336582U patent/JPS58176440U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5544487A (en) * | 1978-09-26 | 1980-03-28 | Mitsubishi Electric Corp | Fish transfer device in fish pond |
| JPS5622803U (en) * | 1979-07-25 | 1981-02-28 |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS643243Y2 (en) | 1989-01-27 |
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