JPH0251404U - - Google Patents
Info
- Publication number
- JPH0251404U JPH0251404U JP12971488U JP12971488U JPH0251404U JP H0251404 U JPH0251404 U JP H0251404U JP 12971488 U JP12971488 U JP 12971488U JP 12971488 U JP12971488 U JP 12971488U JP H0251404 U JPH0251404 U JP H0251404U
- Authority
- JP
- Japan
- Prior art keywords
- pass filter
- low
- filter
- duplexer
- band
- 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 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
Description
第１図は本考案の一実施例を示す平面図、第２
図は第１図の―線から見た断面図、第３図は
本考案を適用する分波器の等価回路図、第４図は
第３図の分波器の平面図である。
１０…分波器用低域通過フイルタ、１１…誘電
体プリント基板、１２…アース用導電体層、１３
…パターン導電層、１４…コンデンサ用電極部、
１５…インダクタンスパターン配線部、２１…低
域通過フイルタ、２２…帯域通過フイルタ、２３
…帯域通過フイルタ、２４…帯域阻止フイルタ、
２５…ケース、Ａｘ…アンテナ端子、Ｔｘ…送信
信号入力端子、Ｒｘ…受信信号出力端子。
Figure 1 is a plan view showing one embodiment of the present invention;
3 is an equivalent circuit diagram of a duplexer to which the present invention is applied, and FIG. 4 is a plan view of the duplexer shown in FIG. 3. 10... Low-pass filter for duplexer, 11... Dielectric printed circuit board, 12... Conductor layer for grounding, 13
... Patterned conductive layer, 14... Electrode part for capacitor,
15... Inductance pattern wiring section, 21... Low pass filter, 22... Band pass filter, 23
... band pass filter, 24... band rejection filter,
25...Case, Ax...Antenna terminal, Tx...Transmission signal input terminal, Rx...Reception signal output terminal.
Claims (1)
端子からの送信信号を帯域阻止フイルタ、第１の
帯域通過フイルタ、および低域通過フイルタを介
してアンテナ端子へ導くと共に、このアンテナ端
子からの受信入力信号を前記低域通過フイルタ、
および第２の帯域通過フイルタを介して受信信号
出力端子へ導くようにしたフイルタ分波器に組込
んで用いられる分波器用低域通過フイルタにおい
て、 可撓性を有する誘電体プリント基板の一面をア
ース用導電体層とし、他面に所定のパターンの導
電体層を施すことによつて所定のインピーダンス
で低域通過フイルタ機能を有する配線部を形成し
たことを特徴とする分波器用低域通過フイルタ。[Claims for Utility Model Registration] Constructed inside a conductive case, the transmitting signal from the transmitting signal input terminal is guided to the antenna terminal via a band rejection filter, a first band pass filter, and a low pass filter. , the received input signal from this antenna terminal is passed through the low-pass filter,
In a low-pass filter for a duplexer used by being incorporated into a filter duplexer in which the received signal is guided to an output terminal via a second band-pass filter, one side of a flexible dielectric printed circuit board is used. A low-pass filter for a duplexer, characterized in that it has a conductive layer for grounding and a conductive layer with a predetermined pattern on the other side to form a wiring portion having a low-pass filter function with a predetermined impedance. filter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12971488U JPH0251404U (en) | 1988-10-03 | 1988-10-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12971488U JPH0251404U (en) | 1988-10-03 | 1988-10-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0251404U true JPH0251404U (en) | 1990-04-11 |
Family
ID=31384245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12971488U Pending JPH0251404U (en) | 1988-10-03 | 1988-10-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0251404U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6272201A (en) * | 1985-09-25 | 1987-04-02 | Murata Mfg Co Ltd | Filter device |
| JPS6261507B2 (en) * | 1979-03-05 | 1987-12-22 | Mitsubishi Electric Corp |
-
1988
- 1988-10-03 JP JP12971488U patent/JPH0251404U/ja active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6261507B2 (en) * | 1979-03-05 | 1987-12-22 | Mitsubishi Electric Corp | |
| JPS6272201A (en) * | 1985-09-25 | 1987-04-02 | Murata Mfg Co Ltd | Filter device |
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