JPS61128846U - - Google Patents
Info
- Publication number
- JPS61128846U JPS61128846U JP1985011662U JP1166285U JPS61128846U JP S61128846 U JPS61128846 U JP S61128846U JP 1985011662 U JP1985011662 U JP 1985011662U JP 1166285 U JP1166285 U JP 1166285U JP S61128846 U JPS61128846 U JP S61128846U
- Authority
- JP
- Japan
- Prior art keywords
- directional coupler
- adjusted
- circuit
- frequency
- circuit block
- 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 8
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
Landscapes
- Superheterodyne Receivers (AREA)
- Monitoring And Testing Of Transmission In General (AREA)
Description
第１図は、本考案の高周波回路の一部を構成す
る第１の中間周波フイルタと中間周波アンプと第
２の中間周波フイルタの具体的回路図であり、第
２図は、一般的なのＣＡＴＶコンバータの周波数
変換回路等に使用されている高周波回路のブロツ
ク回路図であり、第３図は、第２図の高周波回路
の一部を構成する従来の第１の中間周波フイルタ
と中間周波アンプと第２の中間周波フイルタの具
体的回路図であり、第４図は、第２図で示した高
周波回路が収納されるシールド枠の概略構造を示
す斜視図であり、第５図は、中間周波アンプと第
２の中間周波フイルタの構造図であり、第６図は
、調整するための調整治具の概略構成図であり、
第７図Ａは、高周波回路として要求される周波数
応答特性の波形を示す図であり、第７図Ｂは、従
来の高周波回路が調整時に調整されていた周波数
応答特性の波形を示す図である。
４：第１の中間周波フイルタ、５：中間周波ア
ンプ、６：第２の中間周波フイルタ、４０：方向
性結合器、４１：入力端子、４２：結合部、４３
：終端抵抗。
FIG. 1 is a specific circuit diagram of a first intermediate frequency filter, an intermediate frequency amplifier, and a second intermediate frequency filter that constitute a part of the high frequency circuit of the present invention, and FIG. 2 is a specific circuit diagram of a general CATV. This is a block circuit diagram of a high frequency circuit used in a frequency conversion circuit of a converter, etc., and FIG. 3 shows a conventional first intermediate frequency filter and an intermediate frequency amplifier that constitute a part of the high frequency circuit in FIG. 4 is a perspective view showing a schematic structure of a shield frame in which the high frequency circuit shown in FIG. 2 is housed; FIG. 5 is a specific circuit diagram of the second intermediate frequency filter; FIG. 6 is a structural diagram of an amplifier and a second intermediate frequency filter, and FIG. 6 is a schematic configuration diagram of an adjustment jig for adjustment,
FIG. 7A is a diagram showing a waveform of a frequency response characteristic required for a high-frequency circuit, and FIG. 7B is a diagram showing a waveform of a frequency response characteristic that is adjusted when a conventional high-frequency circuit is adjusted. . 4: first intermediate frequency filter, 5: intermediate frequency amplifier, 6: second intermediate frequency filter, 40: directional coupler, 41: input terminal, 42: coupling section, 43
:Terminal resistor.
Claims (1)
おいて、調整される回路ブロツクの入力端部また
は出力端部の少なくとも一方の信号経路に、方向
性結合器が設けられていることを特徴とする高周
波回路。 (2) 調整される回路ブロツクの入力端部の信号
経路に方向性結合器を設け、この方向性結合器に
より前記回路ブロツクに調整用信号を加えて周波
数応答特性を調整するように構成したことを特徴
とする実用新案登録請求の範囲第１項記載の高周
波回路。 (3) 調整される回路ブロツクの出力端部の信号
経路に方向性結合器を設け、この方向性結合器か
ら調整用信号を導出させて周波数応答特性を調整
するように構成したことを特徴とする実用新案登
録請求の範囲第１項記載の高周波回路。[Claims for Utility Model Registration] (1) In a high-frequency circuit whose frequency response characteristics are adjusted, a directional coupler is provided in the signal path of at least one of the input end or output end of the circuit block to be adjusted. A high frequency circuit characterized by: (2) A directional coupler is provided in the signal path at the input end of the circuit block to be adjusted, and the directional coupler applies an adjustment signal to the circuit block to adjust the frequency response characteristics. A high-frequency circuit according to claim 1 of the utility model registration claim, characterized in that: (3) A directional coupler is provided in the signal path at the output end of the circuit block to be adjusted, and an adjustment signal is derived from the directional coupler to adjust the frequency response characteristic. A high frequency circuit according to claim 1 of the utility model registration claim.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985011662U JPS61128846U (en) | 1985-01-30 | 1985-01-30 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1985011662U JPS61128846U (en) | 1985-01-30 | 1985-01-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61128846U true JPS61128846U (en) | 1986-08-12 |
Family
ID=30493989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1985011662U Pending JPS61128846U (en) | 1985-01-30 | 1985-01-30 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61128846U (en) |
-
1985
- 1985-01-30 JP JP1985011662U patent/JPS61128846U/ja active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS61128846U (en) | ||
| JPS61116445U (en) | ||
| JPH0434023U (en) | ||
| JPS61168715U (en) | ||
| JPS6219814U (en) | ||
| JPS6213008U (en) | ||
| JPS6150324U (en) | ||
| JPS63192717U (en) | ||
| JPH0320447U (en) | ||
| JPS61139009U (en) | ||
| JPS6381410U (en) | ||
| JPS6457809A (en) | Amplifier circuit | |
| JPS61156330U (en) | ||
| JPH0186783U (en) | ||
| JPH0273814U (en) | ||
| JPS6365333U (en) | ||
| JPS58132500U (en) | Speaker minimum resonance frequency measuring device | |
| JPS62109513U (en) | ||
| JPS6257423U (en) | ||
| JPH0348921U (en) | ||
| JPS628724U (en) | ||
| JPS6352311U (en) | ||
| JPS61187139U (en) | ||
| JPS61109250U (en) | ||
| JPS6232643U (en) |