JPS58141637U - RF switch circuit - Google Patents

RF switch circuit

Info

Publication number
JPS58141637U
JPS58141637U JP1982038901U JP3890182U JPS58141637U JP S58141637 U JPS58141637 U JP S58141637U JP 1982038901 U JP1982038901 U JP 1982038901U JP 3890182 U JP3890182 U JP 3890182U JP S58141637 U JPS58141637 U JP S58141637U
Authority
JP
Japan
Prior art keywords
antenna input
input terminal
switch circuit
switching element
resonant 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.)
Granted
Application number
JP1982038901U
Other languages
Japanese (ja)
Other versions
JPH0224283Y2 (en
Inventor
原井　義博
細矢　信和
哲宏 前田
Original Assignee
三洋電機株式会社
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 三洋電機株式会社 filed Critical 三洋電機株式会社
Priority to JP1982038901U priority Critical patent/JPS58141637U/en
Publication of JPS58141637U publication Critical patent/JPS58141637U/en
Application granted granted Critical
Publication of JPH0224283Y2 publication Critical patent/JPH0224283Y2/ja
Granted legal-status Critical Current

Links

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

【図面の簡単な説明】[Brief explanation of drawings]

第１図はＲＦスイッチ回路を使用したＶＴＲの要部ブロ
ック図、第２図は従来のＲＦスイッチ回路図、第３図は
本考案のＲＦスイッチ回路図である。 １１〜１４・・・・・・第１〜第４コンデンサ、２１〜
２３・・・・・・第１〜第３ダイオード、４１．４２・
・間第１、第２抵抗、３０・・・・・・インダクタンス
、■・・・・・・入力端子、０・・・・・・出力端子。FIG. 1 is a block diagram of a main part of a VTR using an RF switch circuit, FIG. 2 is a conventional RF switch circuit diagram, and FIG. 3 is an RF switch circuit diagram of the present invention. 11-14...First to fourth capacitors, 21-
23...First to third diodes, 41.42.
・First and second resistors, 30... Inductance, ■... Input terminal, 0... Output terminal.

Claims (2)

【実用新案登録請求の範囲】[Scope of utility model registration request] （１）アンテナ入力端子とテレビジョン受像機のチュー
ナ入力端子との間に、挿入損失が使用周波数帯域で許容
されるような小容量の複数のコンデンサを接続し、アン
テナ入力信号カットオフモードにおいて、前記コンデン
サの一つに第１スイツチング素子を介してインダクタン
スを並列に接続して共振回路を形成せしめ、この共振回
路のアンテナ入力端子側の端子を第２のスイッチング素
子を介して接地すべく構成したＲＦスイッチ回路。(1) Connect multiple capacitors with small capacitances whose insertion loss is permissible in the used frequency band between the antenna input terminal and the tuner input terminal of the television receiver, and in the antenna input signal cut-off mode, An inductance is connected in parallel to one of the capacitors via a first switching element to form a resonant circuit, and a terminal of the resonant circuit on the antenna input terminal side is grounded via a second switching element. RF switch circuit. （２）　　アンテナ入力信号カットオフモードにおいて
、前記共振回路とアンテナ入力端子との間に直列に接続
した２個のコンデンサの接続中点を第３のスイッチング
素子を介して接地すべく構成した実用新案登録請求の範
囲第１項記載のＲＦスイッチ回路。(2) A utility model configured to ground the connection midpoint of two capacitors connected in series between the resonant circuit and the antenna input terminal via a third switching element in the antenna input signal cutoff mode. An RF switch circuit according to claim 1.
JP1982038901U 1982-03-18 1982-03-18 RF switch circuit Granted JPS58141637U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1982038901U JPS58141637U (en) 1982-03-18 1982-03-18 RF switch circuit

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1982038901U JPS58141637U (en) 1982-03-18 1982-03-18 RF switch circuit

Publications (2)

Publication Number Publication Date
JPS58141637U true JPS58141637U (en) 1983-09-24
JPH0224283Y2 JPH0224283Y2 (en) 1990-07-03

Family

ID=30050211

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1982038901U Granted JPS58141637U (en) 1982-03-18 1982-03-18 RF switch circuit

Country Status (1)

Country Link
JP (1) JPS58141637U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6423177U (en) * 1987-07-31 1989-02-07

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6423177U (en) * 1987-07-31 1989-02-07

Also Published As

Publication number Publication date
JPH0224283Y2 (en) 1990-07-03

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