JPS56122509A - Mobile composite antenna equipment for both amplitude modulation and frequency modulation - Google Patents

Mobile composite antenna equipment for both amplitude modulation and frequency modulation

Info

Publication number
JPS56122509A
JPS56122509A JP2628880A JP2628880A JPS56122509A JP S56122509 A JPS56122509 A JP S56122509A JP 2628880 A JP2628880 A JP 2628880A JP 2628880 A JP2628880 A JP 2628880A JP S56122509 A JPS56122509 A JP S56122509A
Authority
JP
Japan
Prior art keywords
coupling
composite antenna
antenna
base
modulation
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
JP2628880A
Other languages
Japanese (ja)
Inventor
Shigeki Takeda
Junichi Shibata
Masashi Shimakata
Yasuhiro Oshime
Shintaro Gomi
Katsuaki Kawamura
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.)
Pioneer Corp
Original Assignee
Pioneer Electronic 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 Pioneer Electronic Corp filed Critical Pioneer Electronic Corp
Priority to JP2628880A priority Critical patent/JPS56122509A/en
Priority to DE3108029A priority patent/DE3108029C2/en
Priority to GB8106618A priority patent/GB2089578B/en
Priority to US06/241,455 priority patent/US4397041A/en
Publication of JPS56122509A publication Critical patent/JPS56122509A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q5/00—Arrangements for simultaneous operation of antennas on two or more different wavebands, e.g. dual-band or multi-band arrangements
    • H01Q5/40—Imbricated or interleaved structures; Combined or electromagnetically coupled arrangements, e.g. comprising two or more non-connected fed radiating elements

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To redcue a multipath noise and also make the whole antenna part small- sized, by coupling at least two loop antnna elements at the electrical neutral point, and coupling a rod antenna element between the coupling points of said antenna elements. CONSTITUTION:This equipment is constituted of a composite antenna part 1, a base part 2 for supporting the composite antenna part 1, a base which supports this base part 2 and can be fixed onto the roof, etc. of a car freely attachably and detachably, and a cable 4 for electrically connecting the internal circuit of th base part 2 to the cab equipment. The composite antenna part 1 consists of loop antennas 1a, 1b which have been combined so that the peak directions of distribution of directional patterns become orthogonal to each other, coupling members 1d, 1e existing at the electrical neutral points of the antennas 1a, 1b, and a rod antenna 1c extending between the coupling members 1d, 1e.
JP2628880A 1980-03-03 1980-03-03 Mobile composite antenna equipment for both amplitude modulation and frequency modulation Pending JPS56122509A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2628880A JPS56122509A (en) 1980-03-03 1980-03-03 Mobile composite antenna equipment for both amplitude modulation and frequency modulation
DE3108029A DE3108029C2 (en) 1980-03-03 1981-03-03 FM receiver for a motor vehicle
GB8106618A GB2089578B (en) 1980-03-03 1981-03-03 Complex antenna system
US06/241,455 US4397041A (en) 1980-03-03 1981-03-03 Complex antenna system and FM/AM receiver

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2628880A JPS56122509A (en) 1980-03-03 1980-03-03 Mobile composite antenna equipment for both amplitude modulation and frequency modulation

Publications (1)

Publication Number Publication Date
JPS56122509A true JPS56122509A (en) 1981-09-26

Family

ID=12189103

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2628880A Pending JPS56122509A (en) 1980-03-03 1980-03-03 Mobile composite antenna equipment for both amplitude modulation and frequency modulation

Country Status (1)

Country Link
JP (1) JPS56122509A (en)

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