JPS56753A - Reception unit - Google Patents

Reception unit

Info

Publication number
JPS56753A
JPS56753A JP7624579A JP7624579A JPS56753A JP S56753 A JPS56753 A JP S56753A JP 7624579 A JP7624579 A JP 7624579A JP 7624579 A JP7624579 A JP 7624579A JP S56753 A JPS56753 A JP S56753A
Authority
JP
Japan
Prior art keywords
antenna
receiver
fed
circuits
tuning
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
JP7624579A
Other languages
Japanese (ja)
Other versions
JPS5740688B2 (en
Inventor
Joji Kane
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 JP7624579A priority Critical patent/JPS56753A/en
Priority to US06/158,132 priority patent/US4381566A/en
Priority to CA000353876A priority patent/CA1152660A/en
Priority to EP80302020A priority patent/EP0021762B1/en
Priority to DE8080302020T priority patent/DE3066820D1/en
Publication of JPS56753A publication Critical patent/JPS56753A/en
Publication of JPS5740688B2 publication Critical patent/JPS5740688B2/ja
Granted legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/16—Resonant antennas with feed intermediate between the extremities of the antenna, e.g. centre-fed dipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/30—Resonant antennas with feed to end of elongated active element, e.g. unipole
    • H01Q9/42—Resonant antennas with feed to end of elongated active element, e.g. unipole with folded element, the folded parts being spaced apart a small fraction of the operating wavelength

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

PURPOSE:To enable the remote control of antenna tuning from the receiver, by feeding the control signal via the coaxial cable connected to the receiver to the antenna circuit consisting of the antenna element of bending transmission conductor line and the varible reactance circuit. CONSTITUTION:The antenna circuit 1 consisting of the antenna elements 2a, 2b of a pair in the bending transmission conductor line, variable reactance circuits 4a, 4b having the varactor diodes D5a, D5b and balancing and unbalancing converter 7, and the receiver 11 are connected with the coaxial cable 23, and the reception signal from the antenna is fed to the receiver 11. The tuning operation for the circuits 13, 14 is made with the bias voltage fed to the terminal 18 of the varactor diodes D15, D16 inserted to the resonance circuits 13, 14 of the receiver 11. This bias voltage is fed to D5a, D5b of the same characteristics as D15, D16 via the choke coil CC20 and cables 23, CC9, to perform the tuning control of antenna circuit 1.
JP7624579A 1979-06-14 1979-06-14 Reception unit Granted JPS56753A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP7624579A JPS56753A (en) 1979-06-14 1979-06-14 Reception unit
US06/158,132 US4381566A (en) 1979-06-14 1980-06-10 Electronic tuning antenna system
CA000353876A CA1152660A (en) 1979-06-14 1980-06-12 Electronic tuning antenna system
EP80302020A EP0021762B1 (en) 1979-06-14 1980-06-16 Electronic tuning antenna system
DE8080302020T DE3066820D1 (en) 1979-06-14 1980-06-16 Electronic tuning antenna system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7624579A JPS56753A (en) 1979-06-14 1979-06-14 Reception unit

Publications (2)

Publication Number Publication Date
JPS56753A true JPS56753A (en) 1981-01-07
JPS5740688B2 JPS5740688B2 (en) 1982-08-30

Family

ID=13599789

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7624579A Granted JPS56753A (en) 1979-06-14 1979-06-14 Reception unit

Country Status (1)

Country Link
JP (1) JPS56753A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014011787A (en) * 2012-07-03 2014-01-20 Kojima Press Industry Co Ltd Glass antenna and window glass for vehicle

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6155548A (en) * 1984-08-28 1986-03-20 Matsushita Seiko Co Ltd Electric fan heater
DE112007000224T5 (en) * 2006-02-23 2008-12-11 Murata Manufacturing Co., Ltd., Nagaokakyo Antenna device, array antenna, multiple sector antenna, high frequency wave transceiver

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52164435U (en) * 1976-06-07 1977-12-13

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS52164435U (en) * 1976-06-07 1977-12-13

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2014011787A (en) * 2012-07-03 2014-01-20 Kojima Press Industry Co Ltd Glass antenna and window glass for vehicle

Also Published As

Publication number Publication date
JPS5740688B2 (en) 1982-08-30

Similar Documents

Publication Publication Date Title
US4280129A (en) Variable mutual transductance tuned antenna
US3961330A (en) Antenna system utilizing currents in conductive body
US4935746A (en) Efficiency monitoring antenna
GB612957A (en) Wave-signal selector
GB1219543A (en) Antenna system
US4121181A (en) Electrical branching filter
US2898590A (en) Multi-frequency antenna
DK274886A (en) ANTENNA FOR A RADIO SENDING AND RECEIVING DEVICE
US3961331A (en) Lossy cable choke broadband isolation means for independent antennas
EP0367555A3 (en) Reception system on window glass
JPS56141605A (en) Two resonance microstrip antenna
US3209358A (en) Electronically tunable antenna
JPS56753A (en) Reception unit
GB2036447A (en) Aerial for Body-worn Radio Apparatus
US2511574A (en) Antenna circuit
GB2148604A (en) Monopole aerial
JPS5627514A (en) Tuning circuit of balanced antenna
US4571596A (en) Antenna matching device
JPS56750A (en) Antenna control unit
JPS56115004A (en) Car antenna
JPS5773533A (en) Antenna switch circuit
GB784807A (en) Improvements in or relating to aerials
GB2148605A (en) Whip aerial
JPS56751A (en) Antenna control unit
JPS56754A (en) Receiver