JPS55110438A - Antenna for car mounting - Google Patents

Antenna for car mounting

Info

Publication number
JPS55110438A
JPS55110438A JP1738179A JP1738179A JPS55110438A JP S55110438 A JPS55110438 A JP S55110438A JP 1738179 A JP1738179 A JP 1738179A JP 1738179 A JP1738179 A JP 1738179A JP S55110438 A JPS55110438 A JP S55110438A
Authority
JP
Japan
Prior art keywords
radio receiver
antenna
inductance
capacitor
increase
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
JP1738179A
Other languages
Japanese (ja)
Other versions
JPS6144418B2 (en
Inventor
Akira Okamoto
Hideo Shibuya
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co Ltd
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 Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Priority to JP1738179A priority Critical patent/JPS55110438A/en
Publication of JPS55110438A publication Critical patent/JPS55110438A/en
Publication of JPS6144418B2 publication Critical patent/JPS6144418B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/06—Receivers
    • H04B1/16—Circuits
    • H04B1/18—Input circuits, e.g. for coupling to an antenna or a transmission line

Abstract

PURPOSE:To increase S/N, by increasing the signal level fed to the radio receiver and lowering the signal source impedance viewed from the radio receiver. CONSTITUTION:In mounting the radio receiver of C tuning using varactor diode on a car, taking the radiation impedance of antenna as R1, C1 and cable capacitance as C2, the resonance point between the antenna main body and the power feeding line is selected at the frequency more than the reception band, the inductance L1 is connected in series with the capacitor C1, and the resonant point of the capacitor C1 and the inductance L1 is selected as less than the reception band. Thus, the signal level determined with the dividing ratio of C1/C2 fed to the radio receiver can be increased and the signal source impedance viewed from the radio receiver can be lowered to increase the S/N.
JP1738179A 1979-02-16 1979-02-16 Antenna for car mounting Granted JPS55110438A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1738179A JPS55110438A (en) 1979-02-16 1979-02-16 Antenna for car mounting

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1738179A JPS55110438A (en) 1979-02-16 1979-02-16 Antenna for car mounting

Publications (2)

Publication Number Publication Date
JPS55110438A true JPS55110438A (en) 1980-08-25
JPS6144418B2 JPS6144418B2 (en) 1986-10-02

Family

ID=11942421

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1738179A Granted JPS55110438A (en) 1979-02-16 1979-02-16 Antenna for car mounting

Country Status (1)

Country Link
JP (1) JPS55110438A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141036A (en) * 1982-02-16 1983-08-22 Sony Corp Antenna circuit
JPS6413821U (en) * 1987-07-14 1989-01-24

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58141036A (en) * 1982-02-16 1983-08-22 Sony Corp Antenna circuit
JPH0548011B2 (en) * 1982-02-16 1993-07-20 Sony Corp
JPS6413821U (en) * 1987-07-14 1989-01-24

Also Published As

Publication number Publication date
JPS6144418B2 (en) 1986-10-02

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