JPS56709A - Antenna unit - Google Patents

Antenna unit

Info

Publication number
JPS56709A
JPS56709A JP7624679A JP7624679A JPS56709A JP S56709 A JPS56709 A JP S56709A JP 7624679 A JP7624679 A JP 7624679A JP 7624679 A JP7624679 A JP 7624679A JP S56709 A JPS56709 A JP S56709A
Authority
JP
Japan
Prior art keywords
elements
shape
small
coil
lengthwise direction
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
JP7624679A
Other languages
Japanese (ja)
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 JP7624679A priority Critical patent/JPS56709A/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 JPS56709A publication Critical patent/JPS56709A/en
Pending 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
    • H01Q9/30—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
    • 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

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)
  • Details Of Aerials (AREA)

Abstract

PURPOSE:To establish the unit of small size and light weight and high in the operating gain, by connecting the variable reactance circuit to a pair of antenna elements which have distributed constant inductance and take the lengthwise direction of folded shape as axis. CONSTITUTION:The elements 8, 8' are rounded almost to V-shape by taking the broken lines 10 as the center for a given angle and the lengthwise direction as the axis center. This pattern is of folded shape, then the production of flux is very small and the shape suitable for the form can be kept. Next, the elements 8, 8' are connected with the parallel circuit consisting of the coil 11, variable capacitor 12 and the coil 11', variable capacitor 12', and the resonant frequency is set to a specified value to obtain the positive reactance at the frequency of element. Thus, the tuning condition can be taken at the entire frequency range of the elements, allowing to obtain the antenna unit small in size, light in weight and high in operating gain.
JP7624679A 1979-06-14 1979-06-14 Antenna unit Pending JPS56709A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP7624679A JPS56709A (en) 1979-06-14 1979-06-14 Antenna 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
JP7624679A JPS56709A (en) 1979-06-14 1979-06-14 Antenna unit

Publications (1)

Publication Number Publication Date
JPS56709A true JPS56709A (en) 1981-01-07

Family

ID=13599818

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7624679A Pending JPS56709A (en) 1979-06-14 1979-06-14 Antenna unit

Country Status (1)

Country Link
JP (1) JPS56709A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004516700A (en) * 2000-12-16 2004-06-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Antenna device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004516700A (en) * 2000-12-16 2004-06-03 コーニンクレッカ フィリップス エレクトロニクス エヌ ヴィ Antenna device

Similar Documents

Publication Publication Date Title
JPS56711A (en) Antenna unit
JPS56709A (en) Antenna unit
JPS56713A (en) Antenna unit
JPS56719A (en) Antenna unit of phase difference power feeding type
JPS57194615A (en) Matching circuit for surface acoustic wave
JPS5768917A (en) Hybrid circuit
JPS5658310A (en) Wide band distributor
JPS5643802A (en) Coaxial resonator and antenna duplexer using it
JPS56705A (en) Antenna unit
JPS56707A (en) Tuning type antenna unit
JPS5610712A (en) Antenna device
JPS56712A (en) Antenna unit
JPS56710A (en) Tuning type antenna unit
JPS57143904A (en) Antenna device
JPS56718A (en) Antenna unit
JPS5630310A (en) Impedance converting circuit of balancing antenna
JPS562707A (en) Antenna
JPS6415908A (en) Radio frequency tuning inductor
JPS5258302A (en) Electronic tuning circuit
SU97279A1 (en) Shortwave receiving antenna traveling wave
JPS5564417A (en) Mechanical filter
JPS5558616A (en) Tuning circuit of uhf tuner and adjustment method of its resonance frequency
JPS5733841A (en) Antenna inputting circuit
JPS562705A (en) Antenna
JPS57125504A (en) Antenna device