JPH0268532U - - Google Patents
Info
- Publication number
- JPH0268532U JPH0268532U JP14815888U JP14815888U JPH0268532U JP H0268532 U JPH0268532 U JP H0268532U JP 14815888 U JP14815888 U JP 14815888U JP 14815888 U JP14815888 U JP 14815888U JP H0268532 U JPH0268532 U JP H0268532U
- Authority
- JP
- Japan
- Prior art keywords
- band
- wave band
- pathing
- capacitor
- medium wave
- 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
- 239000003990 capacitor Substances 0.000 claims description 8
- 230000010355 oscillation Effects 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims 4
Landscapes
- Superheterodyne Receivers (AREA)
Description
図は本考案の一実施例を示すものである。３…
…中波バンド用アンテナ回路、６……第１パテイ
ングコンデンサ、８……中波バンド用局部発振回
路、１５，１６……第２パテイングコンデンサ、
１７……バンド切換回路、１８……第１スイツチ
ダイオード、２０……第２スイツチダイオード、
２１……第３スイツチングダイオード。
The figure shows an embodiment of the present invention. 3 ...
... Antenna circuit for medium wave band, 6 ... First pathing capacitor, 8 ... Local oscillation circuit for medium wave band, 15, 16 ... Second pathing capacitor,
17... Band switching circuit, 18... First switch diode, 20... Second switch diode,
21...Third switching diode.
Claims (1)
得る多バンドラジオ受信機であつて、中波バンド
用アンテナ回路と、バンド切換に応じてこの中波
バンド用アンテナ回路に接続される第１のパテイ
ングコンデンサと、中波バンド用局部発振回路と
、バンド切換に応じてこの中波バンド用局部発振
回路に接続される第２のパテイングコンデンサと
一端が第１のパテイングコンデンサに接続され且
つ長波バンド受信時にバンド切換スイツチを介し
て電源が供給される第１半導体スイツチ素子と、
第１及び第２のパテイングコンデンサ間に接続さ
れた第２半導体スイツチ素子と、第２パテイング
コンデンサと基準電位点間に接続された第３半導
体スイツチ素子とを備えたことを特徴とする多バ
ンドラジオ受信機。 A multi-band radio receiver capable of receiving at least a medium wave band and a long wave band, the receiver comprising a medium wave band antenna circuit and a first putty that is connected to the medium wave band antenna circuit in response to band switching. a capacitor, a local oscillation circuit for the medium wave band, a second pathing capacitor connected to the local oscillation circuit for the medium wave band in response to band switching, and a second pathing capacitor connected at one end to the first pathing capacitor and connected to the local oscillation circuit for the long wave band. a first semiconductor switch element to which power is supplied via the band switching switch during reception;
A multi-layer semiconductor switch device comprising: a second semiconductor switch element connected between the first and second pathing capacitors; and a third semiconductor switch element connected between the second pathing capacitor and a reference potential point. band radio receiver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14815888U JPH0268532U (en) | 1988-11-14 | 1988-11-14 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14815888U JPH0268532U (en) | 1988-11-14 | 1988-11-14 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0268532U true JPH0268532U (en) | 1990-05-24 |
Family
ID=31419222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14815888U Pending JPH0268532U (en) | 1988-11-14 | 1988-11-14 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0268532U (en) |
-
1988
- 1988-11-14 JP JP14815888U patent/JPH0268532U/ja active Pending
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