JPH0334315U - - Google Patents
Info
- Publication number
- JPH0334315U JPH0334315U JP9492789U JP9492789U JPH0334315U JP H0334315 U JPH0334315 U JP H0334315U JP 9492789 U JP9492789 U JP 9492789U JP 9492789 U JP9492789 U JP 9492789U JP H0334315 U JPH0334315 U JP H0334315U
- Authority
- JP
- Japan
- Prior art keywords
- filter
- filter circuit
- main board
- board
- circuit
- 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
- 238000006243 chemical reaction Methods 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 6
Landscapes
- Filters And Equalizers (AREA)
- Surface Acoustic Wave Elements And Circuit Networks Thereof (AREA)
Description
第1図は本考案によるプラグイン式フイルタ回
路の1実施例の回路図、第2図は従来のプラグイ
ン式フイルタの回路図、第3図は第2図のフイル
タの周波数特性図、第4図は第2図のフイルタを
用いた通信衛星受信用レシーバの一部のブロツク
図、第5図は第2図のフイルタの主基板への取付
け状態を示す図である。
19……主基板、20a……フイルタ基板、2
0b……SAWフイルタ(フイルタ回路)、22
……平衡−不平衡変換バラン(第1の変換手段)
、28……平衡−不平衡変換バラン(第2の変換
手段)。
Fig. 1 is a circuit diagram of an embodiment of the plug-in filter circuit according to the present invention, Fig. 2 is a circuit diagram of a conventional plug-in filter, Fig. 3 is a frequency characteristic diagram of the filter shown in Fig. 2, and Fig. 4 is a circuit diagram of a conventional plug-in filter circuit. This figure is a partial block diagram of a communication satellite receiver using the filter of FIG. 2, and FIG. 5 is a diagram showing how the filter of FIG. 2 is attached to the main board. 19... Main board, 20a... Filter board, 2
0b...SAW filter (filter circuit), 22
...Balanced-unbalanced conversion balun (first conversion means)
, 28...Balanced-unbalanced conversion balun (second conversion means).
Claims (1)
基板上に形成されたフイルタ回路と、上記フイル
タ基板上に形成され上記主基板からの上記フイル
タ回路に対する不平衡入力信号を平衡入力信号に
変換して上記フイルタ回路に供給する第1の変換
手段と、上記主基板上に形成され上記フイルタ回
路からの平衡出力信号を不平衡出力信号に変換す
る第2の変換手段とを、具備するプラグイン式フ
イルタ回路。 A filter circuit formed on a filter board that is detachably attached to the main board, and a filter circuit formed on the filter board that converts an unbalanced input signal from the main board to the filter circuit into a balanced input signal. A plug-in filter comprising a first conversion means for supplying the filter circuit to the filter circuit, and a second conversion means formed on the main board for converting a balanced output signal from the filter circuit into an unbalanced output signal. circuit.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9492789U JPH0334315U (en) | 1989-08-10 | 1989-08-10 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP9492789U JPH0334315U (en) | 1989-08-10 | 1989-08-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0334315U true JPH0334315U (en) | 1991-04-04 |
Family
ID=31644210
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP9492789U Pending JPH0334315U (en) | 1989-08-10 | 1989-08-10 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0334315U (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100970779B1 (en) * | 2008-06-30 | 2010-07-16 | (주) 부경종합기술단 | Support for planting boundary stone |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5616314A (en) * | 1979-07-20 | 1981-02-17 | Fujitsu Ltd | Surface elastic wave filter |
JPS5829627B2 (en) * | 1979-02-07 | 1983-06-23 | 松下電器産業株式会社 | Semiconductor storage device and its manufacturing method |
-
1989
- 1989-08-10 JP JP9492789U patent/JPH0334315U/ja active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5829627B2 (en) * | 1979-02-07 | 1983-06-23 | 松下電器産業株式会社 | Semiconductor storage device and its manufacturing method |
JPS5616314A (en) * | 1979-07-20 | 1981-02-17 | Fujitsu Ltd | Surface elastic wave filter |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100970779B1 (en) * | 2008-06-30 | 2010-07-16 | (주) 부경종합기술단 | Support for planting boundary stone |
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