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DE69216983D1 - AERIAL AND SMALL, PORTABLE RADIO - Google Patents

AERIAL AND SMALL, PORTABLE RADIO

Info

Publication number
DE69216983D1
DE69216983D1 DE69216983T DE69216983T DE69216983D1 DE 69216983 D1 DE69216983 D1 DE 69216983D1 DE 69216983 T DE69216983 T DE 69216983T DE 69216983 T DE69216983 T DE 69216983T DE 69216983 D1 DE69216983 D1 DE 69216983D1
Authority
DE
Germany
Prior art keywords
aerial
small
portable radio
portable
radio
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 - Lifetime
Application number
DE69216983T
Other languages
German (de)
Inventor
Norio Hama
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Application granted granted Critical
Publication of DE69216983D1 publication Critical patent/DE69216983D1/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • 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
    • 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
    • H01Q1/273—Adaptation for carrying or wearing by persons or animals
DE69216983T 1991-05-09 1992-05-06 AERIAL AND SMALL, PORTABLE RADIO Expired - Lifetime DE69216983D1 (en)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP10424591 1991-05-09
JP25377391 1991-10-01
PCT/JP1992/000581 WO1992020117A1 (en) 1991-05-09 1992-05-06 Antenna and small portable radio device

Publications (1)

Publication Number Publication Date
DE69216983D1 true DE69216983D1 (en) 1997-03-06

Family

ID=26444755

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69216983T Expired - Lifetime DE69216983D1 (en) 1991-05-09 1992-05-06 AERIAL AND SMALL, PORTABLE RADIO

Country Status (4)

Country Link
EP (1) EP0538485B1 (en)
DE (1) DE69216983D1 (en)
HK (1) HK1000299A1 (en)
WO (1) WO1992020117A1 (en)

Families Citing this family (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5589840A (en) * 1991-11-05 1996-12-31 Seiko Epson Corporation Wrist-type wireless instrument and antenna apparatus
EP0565725B1 (en) * 1991-11-05 1997-05-07 Seiko Epson Corporation Antenna device for radio apparatus
GB2304465B (en) * 1993-03-17 1997-10-22 Seiko Epson Corp Slot antenna device
GB2276274B (en) * 1993-03-17 1997-10-22 Seiko Epson Corp Slot antenna device
US5532705A (en) * 1993-03-17 1996-07-02 Seiko Epson Corporation Wrist-mounted-type antenna device and apparatus having the antenna device
US5757326A (en) * 1993-03-29 1998-05-26 Seiko Epson Corporation Slot antenna device and wireless apparatus employing the antenna device
FR2724274B1 (en) * 1994-09-07 1996-11-08 Telediffusion Fse FRAME ANTENNA, INSENSITIVE TO CAPACITIVE EFFECT, AND TRANSCEIVER DEVICE COMPRISING SUCH ANTENNA
JP3417083B2 (en) * 1994-10-04 2003-06-16 セイコーエプソン株式会社 Portable radio
JP3307248B2 (en) 1996-12-09 2002-07-24 株式会社村田製作所 Surface mounted antenna and surface mounted antenna device
GB9806612D0 (en) * 1998-03-28 1998-05-27 Philips Electronics Nv Communication device
DE10047903A1 (en) * 2000-09-27 2002-04-25 Siemens Ag Mobile radio transceiver with tunable antenna
US7362285B2 (en) * 2004-06-21 2008-04-22 Lutron Electronics Co., Ltd. Compact radio frequency transmitting and receiving antenna and control device employing same
US7439922B2 (en) * 2006-12-19 2008-10-21 Nokia Corporation Antenna for a portable device
JP4770792B2 (en) * 2007-05-18 2011-09-14 パナソニック電工株式会社 Antenna device
JP4770793B2 (en) * 2007-05-18 2011-09-14 パナソニック電工株式会社 Antenna device
JP5896060B2 (en) * 2010-11-12 2016-03-30 セイコーエプソン株式会社 Electronic clock with built-in antenna
WO2015159324A1 (en) 2014-04-17 2015-10-22 三菱電機株式会社 Antenna device and antenna-manufacturing method
JP2025148153A (en) * 2024-03-25 2025-10-07 Idec株式会社 Wearable Antenna Device

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5627514A (en) * 1979-08-13 1981-03-17 Pioneer Electronic Corp Tuning circuit of balanced antenna
JPS5944103A (en) * 1982-09-07 1984-03-12 Toshiba Corp Antenna device
CA1212175A (en) * 1983-03-19 1986-09-30 Takashi Oda Double loop antenna for use in connection to a miniature radio receiver
US4862181A (en) * 1986-10-31 1989-08-29 Motorola, Inc. Miniature integral antenna-radio apparatus
US5136719A (en) * 1988-12-05 1992-08-04 Seiko Corp. Automatic antenna tubing method and apparatus
JPH0383404A (en) * 1989-08-28 1991-04-09 Toshiba Corp Microwave mixer circuit

Also Published As

Publication number Publication date
EP0538485B1 (en) 1997-01-22
EP0538485A4 (en) 1994-01-19
HK1000299A1 (en) 1998-02-20
WO1992020117A1 (en) 1992-11-12
EP0538485A1 (en) 1993-04-28

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Legal Events

Date Code Title Description
8332 No legal effect for de