SG72490G - Double loop antenna - Google Patents

Double loop antenna

Info

Publication number
SG72490G
SG72490G SG724/90A SG72490A SG72490G SG 72490 G SG72490 G SG 72490G SG 724/90 A SG724/90 A SG 724/90A SG 72490 A SG72490 A SG 72490A SG 72490 G SG72490 G SG 72490G
Authority
SG
Singapore
Prior art keywords
loop antenna
double loop
double
antenna
loop
Prior art date
Application number
SG724/90A
Other languages
English (en)
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
Priority claimed from JP4531583A external-priority patent/JPH0233201B2/ja
Priority claimed from JP4531683A external-priority patent/JPH0233202B2/ja
Application filed by Nec Corp filed Critical Nec Corp
Publication of SG72490G publication Critical patent/SG72490G/en

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
    • 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
    • H01Q7/005—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 with variable reactance for tuning the antenna
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/12—Supports; Mounting means
    • H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
    • H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
    • H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
    • H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
    • H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
    • 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
SG724/90A 1983-03-19 1990-09-01 Double loop antenna SG72490G (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP4531583A JPH0233201B2 (ja) 1983-03-19 1983-03-19 Kogatamusenkyoantena
JP4531683A JPH0233202B2 (ja) 1983-03-19 1983-03-19 Kogatamusenkyoantena

Publications (1)

Publication Number Publication Date
SG72490G true SG72490G (en) 1990-11-23

Family

ID=26385288

Family Applications (1)

Application Number Title Priority Date Filing Date
SG724/90A SG72490G (en) 1983-03-19 1990-09-01 Double loop antenna

Country Status (8)

Country Link
US (1) US4625212A (de)
EP (1) EP0122485B1 (de)
KR (1) KR870000398B1 (de)
AU (1) AU561993B2 (de)
CA (1) CA1212175A (de)
DE (1) DE3465840D1 (de)
HK (1) HK2391A (de)
SG (1) SG72490G (de)

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JPH02116228A (ja) * 1988-10-26 1990-04-27 Nec Corp 携帯用無線機
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GB2381664B (en) * 2001-10-12 2003-11-19 Murata Manufacturing Co Loop antenna, surface-mounted antenna and communication equipment having the same
SE525659C2 (sv) * 2003-07-11 2005-03-29 Amc Centurion Ab Antenna device and portable radio communication device comprising such antenna device
GB2415832B (en) * 2004-06-30 2008-03-26 Nokia Corp An antenna
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FI119009B (fi) 2005-10-03 2008-06-13 Pulse Finland Oy Monikaistainen antennijärjestelmä
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US8618990B2 (en) 2011-04-13 2013-12-31 Pulse Finland Oy Wideband antenna and methods
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JP4858733B1 (ja) * 2010-10-06 2012-01-18 横浜ゴム株式会社 送信装置
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US8648752B2 (en) 2011-02-11 2014-02-11 Pulse Finland Oy Chassis-excited antenna apparatus and methods
US9673507B2 (en) 2011-02-11 2017-06-06 Pulse Finland Oy Chassis-excited antenna apparatus and methods
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US9450291B2 (en) 2011-07-25 2016-09-20 Pulse Finland Oy Multiband slot loop antenna apparatus and methods
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US9531058B2 (en) 2011-12-20 2016-12-27 Pulse Finland Oy Loosely-coupled radio antenna apparatus and methods
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US10069209B2 (en) 2012-11-06 2018-09-04 Pulse Finland Oy Capacitively coupled antenna apparatus and methods
US9647338B2 (en) 2013-03-11 2017-05-09 Pulse Finland Oy Coupled antenna structure and methods
US10079428B2 (en) 2013-03-11 2018-09-18 Pulse Finland Oy Coupled antenna structure and methods
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US9590308B2 (en) 2013-12-03 2017-03-07 Pulse Electronics, Inc. Reduced surface area antenna apparatus and mobile communications devices incorporating the same
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WO2015159324A1 (ja) * 2014-04-17 2015-10-22 三菱電機株式会社 アンテナ装置及びアンテナ製造方法
US9948002B2 (en) 2014-08-26 2018-04-17 Pulse Finland Oy Antenna apparatus with an integrated proximity sensor and methods
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US9722308B2 (en) 2014-08-28 2017-08-01 Pulse Finland Oy Low passive intermodulation distributed antenna system for multiple-input multiple-output systems and methods of use
US9525201B2 (en) 2014-10-27 2016-12-20 Nokia Technologies Oy Hinge that serves as a radiator
US9906260B2 (en) 2015-07-30 2018-02-27 Pulse Finland Oy Sensor-based closed loop antenna swapping apparatus and methods
EP3336963A1 (de) * 2016-12-16 2018-06-20 Thomson Licensing Kantenmontierte funkfrequenzantenne mit niedrigem profil
TWI669851B (zh) * 2018-03-26 2019-08-21 宏碁股份有限公司 行動裝置

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US3210766A (en) * 1962-02-15 1965-10-05 Ralph O Parker Slot type antenna with tuning circuit
US3508271A (en) * 1966-10-24 1970-04-21 Gen Dynamics Corp Folded monopole antenna
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JPS583405B2 (ja) * 1976-09-24 1983-01-21 日本電気株式会社 小型無線機用アンテナ

Also Published As

Publication number Publication date
HK2391A (en) 1991-01-11
CA1212175A (en) 1986-09-30
KR870000398B1 (ko) 1987-03-07
US4625212A (en) 1986-11-25
DE3465840D1 (en) 1987-10-08
AU561993B2 (en) 1987-05-21
EP0122485B1 (de) 1987-09-02
EP0122485A1 (de) 1984-10-24
AU2585884A (en) 1984-09-20
KR840008225A (ko) 1984-12-13

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