JPH03117911U - - Google Patents
Info
- Publication number
- JPH03117911U JPH03117911U JP2708790U JP2708790U JPH03117911U JP H03117911 U JPH03117911 U JP H03117911U JP 2708790 U JP2708790 U JP 2708790U JP 2708790 U JP2708790 U JP 2708790U JP H03117911 U JPH03117911 U JP H03117911U
- Authority
- JP
- Japan
- Prior art keywords
- input
- output terminal
- filter
- reception
- signal
- 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
- 230000005540 biological transmission Effects 0.000 claims description 7
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Control Of Motors That Do Not Use Commutators (AREA)
Description
第１図ａ，ｂは本考案の実施例を示す共用器の
斜視図、第２図は従来の共用器の構成図、第３図
は第２図の分波回路パターンの斜視図、第４図は
第１図の同軸線の断面図である。
１３……入出力端子、１５……送信用フイルタ
、１５ａ……入力端子、１６……受信用フイルタ
、１６ｂ……出力端子、１７，１８……同軸線。
1A and 1B are perspective views of a duplexer showing an embodiment of the present invention, FIG. 2 is a configuration diagram of a conventional duplexer, FIG. 3 is a perspective view of the branching circuit pattern of FIG. 2, and FIG. The figure is a sectional view of the coaxial line in FIG. 1. 13... Input/output terminal, 15... Transmission filter, 15a... Input terminal, 16... Receiving filter, 16b... Output terminal, 17, 18... Coaxial line.
Claims (1)
する出力端子、及び送信信号を外部へ出力すると
共に外部からの受信信号を入力する入出力端子と
、 前記入力端子に入力された送信信号をろ波して
前記入出力端子へ出力する送信用フイルタと、 前記入出力端子に入力された受信信号をろ波し
て前記出力端子へ出力する受信用フイルタとを、
備えた共用器において、 前記受信信号に対して、前記入出力端子からみ
た前記送信用フイルタのインピーダスが最大にな
るような長さに設定された第１の同軸線で、前記
入出力端子と前記送信用フイルタとの間を接続し
、 前記送信信号に対して、前記入出力端子からみ
た前記受信用フイルタのインピーダンスが最大に
なるような長さに設定された第２の同軸線で、前
記入出力端子と前記受信用フイルタとの間を接続
したことを特徴とする共用器。[Claims for Utility Model Registration] An input terminal for inputting a transmission signal, an output terminal for outputting a reception signal, an input/output terminal for outputting the transmission signal to the outside and inputting a reception signal from the outside; a transmission filter that filters an input transmission signal and outputs it to the input/output terminal; a reception filter that filters a reception signal input to the input/output terminal and outputs it to the output terminal;
In the duplexer, a first coaxial line is connected to the input/output terminal by a first coaxial line set to a length such that the impedance of the transmitting filter as seen from the input/output terminal is maximized with respect to the received signal. A second coaxial line is connected between the transmission filter and the reception filter, and is set to a length such that the impedance of the reception filter as seen from the input/output terminal is maximized with respect to the transmission signal. A duplexer characterized in that an input/output terminal and the receiving filter are connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2708790U JPH03117911U (en) | 1990-03-16 | 1990-03-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2708790U JPH03117911U (en) | 1990-03-16 | 1990-03-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03117911U true JPH03117911U (en) | 1991-12-05 |
Family
ID=31529959
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2708790U Pending JPH03117911U (en) | 1990-03-16 | 1990-03-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03117911U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008136785A (en) * | 2006-12-05 | 2008-06-19 | Mutsuro Miyama | Electric therapeutic apparatus |
-
1990
- 1990-03-16 JP JP2708790U patent/JPH03117911U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008136785A (en) * | 2006-12-05 | 2008-06-19 | Mutsuro Miyama | Electric therapeutic apparatus |
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