JPS58158545U - electronic attenuator circuit - Google Patents
electronic attenuator circuitInfo
- Publication number
- JPS58158545U JPS58158545U JP5311882U JP5311882U JPS58158545U JP S58158545 U JPS58158545 U JP S58158545U JP 5311882 U JP5311882 U JP 5311882U JP 5311882 U JP5311882 U JP 5311882U JP S58158545 U JPS58158545 U JP S58158545U
- Authority
- JP
- Japan
- Prior art keywords
- capacitor
- attenuator circuit
- antenna
- electronic attenuator
- anode
- 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
Landscapes
- Attenuators (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図は従来の電子アッテネータ回路の回路図、第２図
は本考案による電子アッテネータ回路の実施例回路図で
ある。
１・・・・・・空中線、２・・・・・・入力端子、３，
９・・・・・・ナース端子、６・・・・・・アンテナコ
イル、７・・′曲回変容量素子、８・・・・・・出力端
子、１０．１６・・・・・・コンデンサ、１１，１２．
１８・・・・・・抵抗、１３・・・用スイッチ、１４・
・・・・・プラス電源、１５・・曲マイ、ナス電源、１
７−−−−−−スイツチングダイオード。FIG. 1 is a circuit diagram of a conventional electronic attenuator circuit, and FIG. 2 is a circuit diagram of an embodiment of an electronic attenuator circuit according to the present invention. 1...Antenna, 2...Input terminal, 3,
9... Nurse terminal, 6... Antenna coil, 7...' Turning capacitive element, 8... Output terminal, 10.16... Capacitor , 11, 12.
18...Resistor, 13... switch, 14...
...Plus power, 15...Track minus, minus power, 1
7---Switching diode.
Claims (1)
接続し他端からスイッチングダイオードのアノード・カ
ソードを介してアンテナコイルの信号側に接続し、前記
スイッチングダイオードに並列に、抵抗とコンデンサの
直列接続からなるネットワーク素子を接続し、前記ダイ
オ・−ドのアノードに、空中線のインピーダンスに比し
て充分大きな抵抗を介して、非減衰動作時は正の電圧を
印加し、減衰時には負の電圧を印加することを特徴とす
る電子アッテネータ回路。One end of the capacitor is connected to the input terminal of the antenna, the other end of the capacitor is connected to the signal side of the antenna coil via the anode and cathode of a switching diode, and a resistor and a capacitor are connected in series in parallel to the switching diode. A positive voltage is applied to the anode of the diode through a resistance sufficiently large compared to the impedance of the antenna during non-attenuation operation, and a negative voltage is applied during attenuation. An electronic attenuator circuit characterized by:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5311882U JPS58158545U (en) | 1982-04-14 | 1982-04-14 | electronic attenuator circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5311882U JPS58158545U (en) | 1982-04-14 | 1982-04-14 | electronic attenuator circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58158545U true JPS58158545U (en) | 1983-10-22 |
Family
ID=30063799
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5311882U Pending JPS58158545U (en) | 1982-04-14 | 1982-04-14 | electronic attenuator circuit |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58158545U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006098059A1 (en) * | 2005-03-14 | 2006-09-21 | Niigata Seimitsu Co., Ltd. | Antenna damping circuit and high frequency receiver employing same |
-
1982
- 1982-04-14 JP JP5311882U patent/JPS58158545U/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2006098059A1 (en) * | 2005-03-14 | 2006-09-21 | Niigata Seimitsu Co., Ltd. | Antenna damping circuit and high frequency receiver employing same |
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