JPS5715502A - Ferrite antenna device - Google Patents
Ferrite antenna deviceInfo
- 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
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
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)
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 |
-
1980
- 1980-07-02 JP JP9198080A patent/JPS5715502A/en active Pending
Cited By (1)
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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