JPS63198233U - - Google Patents
Info
- Publication number
- JPS63198233U JPS63198233U JP1987088634U JP8863487U JPS63198233U JP S63198233 U JPS63198233 U JP S63198233U JP 1987088634 U JP1987088634 U JP 1987088634U JP 8863487 U JP8863487 U JP 8863487U JP S63198233 U JPS63198233 U JP S63198233U
- Authority
- JP
- Japan
- Prior art keywords
- signal output
- transformer
- antenna
- terminal impedance
- output section
- 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
- 238000010586 diagram Methods 0.000 description 3
- 238000002955 isolation Methods 0.000 description 1
Landscapes
- Superheterodyne Receivers (AREA)
- Noise Elimination (AREA)
- Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
Description
第１図は本考案の実施例によるアンテナブース
タ・ミキサの主要部の回路図、第２図はアンテナ
ブースタ・ミキサとその接続経路を示すブロツク
図、第３図は従来のアンテナブースタ・ミキサの
主要部の回路図、第４図は従来例と本考案の実施
例におけるアイソレーシヨンの特性を比較して示
した線図である。
１……アンテナブースタ・ミキサ、２……ＴＶ
アンテナ、３，５……ブースタ、４……トランス
Ｔ１によつて構成される分配器、６……トランス
Ｔ２によつて構成されるミキサ、Ｒｘ……終端イ
ンピーダンス、Ｒ２，Ｒ３……付加抵抗。
Fig. 1 is a circuit diagram of the main parts of an antenna booster mixer according to an embodiment of the present invention, Fig. 2 is a block diagram showing the antenna booster mixer and its connection path, and Fig. 3 is a main part of a conventional antenna booster mixer. FIG. 4 is a diagram comparing the isolation characteristics of the conventional example and the embodiment of the present invention. 1...Antenna booster/mixer, 2...TV
Antenna, 3, 5...Booster, 4...Distributor configured by transformer T1 , 6...Mixer configured by transformer T2 , Rx...Terminal impedance, R2 , R3 ... ...Additional resistance.
Claims (1)
ら出力されるＲＦ変調信号とをミキシングするト
ランスを有しており且つ、トランスとＲＦ信号出
力部との間に、ＲＦ信号出力部の終端インピーダ
ンスよりも高い抵抗が終端インピーダンスに対し
て並列となるように接続されて成るアンテナブー
スタ・ミキサ。 It has a transformer that mixes the amplified antenna signal and the RF modulation signal output from the RF modulator, and there is a resistance higher than the terminal impedance of the RF signal output section between the transformer and the RF signal output section. Antenna booster mixer connected in parallel to the terminal impedance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987088634U JPH057790Y2 (en) | 1987-06-08 | 1987-06-08 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1987088634U JPH057790Y2 (en) | 1987-06-08 | 1987-06-08 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63198233U true JPS63198233U (en) | 1988-12-20 |
| JPH057790Y2 JPH057790Y2 (en) | 1993-02-26 |
Family
ID=30946902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1987088634U Expired - Lifetime JPH057790Y2 (en) | 1987-06-08 | 1987-06-08 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH057790Y2 (en) |
-
1987
- 1987-06-08 JP JP1987088634U patent/JPH057790Y2/ja not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH057790Y2 (en) | 1993-02-26 |