JPH0275848U - - Google Patents
Info
- Publication number
- JPH0275848U JPH0275848U JP1988155391U JP15539188U JPH0275848U JP H0275848 U JPH0275848 U JP H0275848U JP 1988155391 U JP1988155391 U JP 1988155391U JP 15539188 U JP15539188 U JP 15539188U JP H0275848 U JPH0275848 U JP H0275848U
- Authority
- JP
- Japan
- Prior art keywords
- circuit
- circuit board
- cordless telephone
- receiving section
- view
- 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
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Transceivers (AREA)
- Telephone Set Structure (AREA)
- Noise Elimination (AREA)
Description
第１図乃至第３図は本考案の一実施例を示し、
第１図はコードレス電話機の一部切欠側面図、第
２図はＲＦ回路基板の平面図、第３図はＲＦ回路
基板の回路構成解説図、第４図及び第５図は従来
例を示し、第４図はコードレス電話機の一部切欠
側面図、第５図はＲＦ回路基板の平面図である。
２……アンテナ、３……把持部、６……操作基
板、８……アンテナ端子、９……入出力端子、１
２，１３……ＢＰＦ、１５……コードレス電話機
、１６……ＲＦ回路基板、３６……送信部、３７
……受信部、３９……空芯コイル。
1 to 3 show an embodiment of the present invention,
Fig. 1 is a partially cutaway side view of a cordless telephone, Fig. 2 is a plan view of the RF circuit board, Fig. 3 is an explanatory diagram of the circuit configuration of the RF circuit board, and Figs. 4 and 5 show conventional examples. FIG. 4 is a partially cutaway side view of the cordless telephone, and FIG. 5 is a plan view of the RF circuit board. 2... Antenna, 3... Gripping part, 6... Operation board, 8... Antenna terminal, 9... Input/output terminal, 1
2, 13... BPF, 15... Cordless telephone, 16... RF circuit board, 36... Transmission unit, 37
...Receiving section, 39...Air core coil.
Claims (1)
部の入力回路及び段間回路のフイルタを空芯コイ
ルで形成したことを特徴とするコードレス電話機
のＲＦ回路基板。 1. An RF circuit board for a cordless telephone, characterized in that an input circuit of a receiving section and a filter for an interstage circuit are formed of air-core coils.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988155391U JPH0275848U (en) | 1988-11-29 | 1988-11-29 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1988155391U JPH0275848U (en) | 1988-11-29 | 1988-11-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0275848U true JPH0275848U (en) | 1990-06-11 |
Family
ID=31432982
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1988155391U Pending JPH0275848U (en) | 1988-11-29 | 1988-11-29 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0275848U (en) |
-
1988
- 1988-11-29 JP JP1988155391U patent/JPH0275848U/ja active Pending