JPS562707A - Antenna - Google Patents

Antenna

Info

Publication number
JPS562707A
JPS562707A JP7751379A JP7751379A JPS562707A JP S562707 A JPS562707 A JP S562707A JP 7751379 A JP7751379 A JP 7751379A JP 7751379 A JP7751379 A JP 7751379A JP S562707 A JPS562707 A JP S562707A
Authority
JP
Japan
Prior art keywords
antenna
coil
output
ferrite
balun
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
JP7751379A
Other languages
Japanese (ja)
Inventor
Masanori Sasaki
Yotaro Toyoshima
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.)
TDK Corp
Original Assignee
TDK 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 TDK Corp filed Critical TDK Corp
Priority to JP7751379A priority Critical patent/JPS562707A/en
Publication of JPS562707A publication Critical patent/JPS562707A/en
Pending legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q21/00—Antenna arrays or systems
    • H01Q21/29—Combinations of different interacting antenna units for giving a desired directional characteristic

Landscapes

  • Variable-Direction Aerials And Aerial Arrays (AREA)

Abstract

PURPOSE:To form a small-size and high-gain antenna for FM waves, by combining a monopole antenna and a ferrite antenna. CONSTITUTION:Monopole antenna 1 of horizontal length 1/4 is coupled with ferrite bar 3, which is arranged vertically near the output end of antenna 1, by coupling coil 2. Ferrite bar 3 has the tank circuit consisting of coil 4 and variable capacitor 5, and the output of coil 4 is output through transformer 6 and balun 7. The other end of coil 2 is connected to the ground side of the output of balun 7. By forming the composite antenna of the dipole antenna and the ferrite antenna in this manner, a small-size and high-gain antenna for FM waves can be obtained.
JP7751379A 1979-06-21 1979-06-21 Antenna Pending JPS562707A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7751379A JPS562707A (en) 1979-06-21 1979-06-21 Antenna

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7751379A JPS562707A (en) 1979-06-21 1979-06-21 Antenna

Publications (1)

Publication Number Publication Date
JPS562707A true JPS562707A (en) 1981-01-13

Family

ID=13636040

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7751379A Pending JPS562707A (en) 1979-06-21 1979-06-21 Antenna

Country Status (1)

Country Link
JP (1) JPS562707A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0350006A2 (en) * 1988-07-05 1990-01-10 Nec Corporation Antenna structure used in portable radio device
EP0684704A2 (en) * 1994-05-06 1995-11-29 AT&T Corp. A diversity antenna for a wrist telephone
EP2221914A1 (en) * 2009-02-10 2010-08-25 Laird Technologies AB An antenna, an antenna system and a portable radio communication device comprising such an antenna system
US8724835B2 (en) 2005-12-19 2014-05-13 Nxp B.V. Radio receiver, radio transmitter, and hearing aid

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0350006A2 (en) * 1988-07-05 1990-01-10 Nec Corporation Antenna structure used in portable radio device
EP0684704A2 (en) * 1994-05-06 1995-11-29 AT&T Corp. A diversity antenna for a wrist telephone
EP0684704A3 (en) * 1994-05-06 1999-11-10 AT&T Corp. A diversity antenna for a wrist telephone
US8724835B2 (en) 2005-12-19 2014-05-13 Nxp B.V. Radio receiver, radio transmitter, and hearing aid
EP2221914A1 (en) * 2009-02-10 2010-08-25 Laird Technologies AB An antenna, an antenna system and a portable radio communication device comprising such an antenna system

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