JPS5715502A - Ferrite antenna device - Google Patents

Ferrite antenna device

Info

Publication number
JPS5715502A
JPS5715502A JP9198080A JP9198080A JPS5715502A JP S5715502 A JPS5715502 A JP S5715502A JP 9198080 A JP9198080 A JP 9198080A JP 9198080 A JP9198080 A JP 9198080A JP S5715502 A JPS5715502 A JP S5715502A
Authority
JP
Japan
Prior art keywords
ferrite rod
coil
ferrite
tuning
antenna device
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
Application number
JP9198080A
Other languages
Japanese (ja)
Inventor
Katsuji Doi
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Electric Corp
Original Assignee
Mitsubishi Electric Corp
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 Mitsubishi Electric Corp filed Critical Mitsubishi Electric Corp
Priority to JP9198080A priority Critical patent/JPS5715502A/en
Publication of JPS5715502A publication Critical patent/JPS5715502A/en
Pending legal-status Critical Current

Links

Landscapes

  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

PURPOSE: To obtain a ferrite antenna device having high efficiency and free in the fitting position of a ferrite rod, by constituting a tuning circuit on the ferrite rod.
CONSTITUTION: A variable capacitor 3 for tuning made of a voltage variable varactor element is fitted to a ferrite rod 1 to make unnecessary a leader line tying an antenna coil 2 and the varactor diode, allowing to reduce the number of windings of the antenna coil 2 and to achieve high Q. An impedance matching coil 8 makes impedance matching between the tuning coil on the ferrite rod 1 and a leading cable 4, and the length of the cable 4 is made free.
COPYRIGHT: (C)1982,JPO&Japio
JP9198080A 1980-07-02 1980-07-02 Ferrite antenna device Pending JPS5715502A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9198080A JPS5715502A (en) 1980-07-02 1980-07-02 Ferrite antenna device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9198080A JPS5715502A (en) 1980-07-02 1980-07-02 Ferrite antenna device

Publications (1)

Publication Number Publication Date
JPS5715502A true JPS5715502A (en) 1982-01-26

Family

ID=14041639

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9198080A Pending JPS5715502A (en) 1980-07-02 1980-07-02 Ferrite antenna device

Country Status (1)

Country Link
JP (1) JPS5715502A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0531323U (en) * 1991-09-27 1993-04-23 テイーデイーケイ株式会社 antenna

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0531323U (en) * 1991-09-27 1993-04-23 テイーデイーケイ株式会社 antenna

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