CA1328310C - Antenna structure used in portable radio device - Google Patents

Antenna structure used in portable radio device

Info

Publication number
CA1328310C
CA1328310C CA 604693 CA604693A CA1328310C CA 1328310 C CA1328310 C CA 1328310C CA 604693 CA604693 CA 604693 CA 604693 A CA604693 A CA 604693A CA 1328310 C CA1328310 C CA 1328310C
Authority
CA
Canada
Prior art keywords
antenna
conductor
battery
loop antenna
coil spring
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.)
Expired - Fee Related
Application number
CA 604693
Other languages
English (en)
French (fr)
Inventor
Takashi Oda
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.)
NEC Corp
Original Assignee
NEC 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 NEC Corp filed Critical NEC Corp
Application granted granted Critical
Publication of CA1328310C publication Critical patent/CA1328310C/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/27—Adaptation for use in or on movable bodies
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q7/00—Loop antennas with a substantially uniform current distribution around the loop and having a directional radiation pattern in a plane perpendicular to the plane of the loop

Landscapes

  • Support Of Aerials (AREA)
  • Mobile Radio Communication Systems (AREA)
CA 604693 1988-07-05 1989-07-04 Antenna structure used in portable radio device Expired - Fee Related CA1328310C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP168175/1988 1988-07-05
JP16817588 1988-07-05

Publications (1)

Publication Number Publication Date
CA1328310C true CA1328310C (en) 1994-04-05

Family

ID=15863186

Family Applications (1)

Application Number Title Priority Date Filing Date
CA 604693 Expired - Fee Related CA1328310C (en) 1988-07-05 1989-07-04 Antenna structure used in portable radio device

Country Status (7)

Country Link
EP (1) EP0350006B1 (de)
JP (1) JPH0812970B2 (de)
KR (1) KR920007133B1 (de)
AU (1) AU625874B2 (de)
CA (1) CA1328310C (de)
DE (1) DE68915347T2 (de)
HK (1) HK131194A (de)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0415703B1 (de) * 1989-08-29 1995-01-04 Nec Corporation Antennensystem für tragbares Funkgerät
US5255001A (en) * 1989-08-29 1993-10-19 Nec Corporation Antenna system for portable radio apparatus
FR2721756B1 (fr) * 1994-06-24 1996-08-23 Telediffusion Fse Système d'antennes d'émission-réception omnidirectionnel à diversité angulaire et de polarisation.
FR2724492B1 (fr) * 1994-09-09 1996-11-22 Telediffusion Fse Systeme d'antennes d'emission-reception omnidirectionnel multipolarisation a diagramme de rayonnement sensiblement circulaire
EP0783190B1 (de) * 1996-01-02 2001-10-04 Texas Instruments Deutschland Gmbh Passive x-y-z Antenne für ein Antwortsendegerät
JP5613589B2 (ja) * 2010-03-19 2014-10-29 パナソニック株式会社 無線機

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1056673B (de) * 1957-04-26 1959-05-06 Marconi Wireless Telegraph Co Zirkularpolarisierte Antennenanordnung
DE3100313A1 (de) * 1981-01-08 1982-08-12 Müllerschön, Wolfgang, 7441 Altenriet Doppelrahmenantenne mit teleskopstab und kombination von zwei doppelrahmenantennen mit jeweiligem teleskopstab
JPS61123303A (ja) * 1984-11-20 1986-06-11 Matsushita Electric Ind Co Ltd 小形無線機のアンテナ
JP2841358B2 (ja) * 1986-05-16 1998-12-24 日本電気株式会社 補助アンテナ
JPS62196432U (de) * 1986-06-03 1987-12-14
JP2624257B2 (ja) * 1987-06-29 1997-06-25 日本電気株式会社 無線機用アンテナ

Also Published As

Publication number Publication date
AU3790089A (en) 1990-01-11
EP0350006A3 (en) 1990-10-24
HK131194A (en) 1994-12-02
JPH0812970B2 (ja) 1996-02-07
JPH02124604A (ja) 1990-05-11
AU625874B2 (en) 1992-07-16
DE68915347D1 (de) 1994-06-23
EP0350006B1 (de) 1994-05-18
KR920007133B1 (en) 1992-08-27
EP0350006A2 (de) 1990-01-10
DE68915347T2 (de) 1994-08-25

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Legal Events

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