JP3791923B2 - 無線通信端末 - Google Patents
無線通信端末 Download PDFInfo
- Publication number
- JP3791923B2 JP3791923B2 JP2004005750A JP2004005750A JP3791923B2 JP 3791923 B2 JP3791923 B2 JP 3791923B2 JP 2004005750 A JP2004005750 A JP 2004005750A JP 2004005750 A JP2004005750 A JP 2004005750A JP 3791923 B2 JP3791923 B2 JP 3791923B2
- Authority
- JP
- Japan
- Prior art keywords
- loop antenna
- line
- explaining
- loop
- feeding point
- 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
Links
Images
Classifications
-
- 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
- H01Q1/12—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
- H01Q1/245—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 means for shaping the antenna pattern, e.g. in order to protect user against rf exposure
-
- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/307—Individual or coupled radiating elements, each element being fed in an unspecified way
- H01Q5/342—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes
- H01Q5/357—Individual or coupled radiating elements, each element being fed in an unspecified way for different propagation modes using a single feed point
- H01Q5/364—Creating multiple current paths
- H01Q5/371—Branching current paths
-
- 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
- H01Q5/30—Arrangements for providing operation on different wavebands
- H01Q5/378—Combination of fed elements with parasitic elements
-
- 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
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Support Of Aerials (AREA)
- Telephone Set Structure (AREA)
- Details Of Aerials (AREA)
Description
図1は、本発明の各実施例に係る携帯電話機の構成を説明する図である。図中の「前」「後」「左」「右」「上」「下」は方向を意味し、「前」をX軸のプラス方向、「右」をY軸のプラス方向、「上」をZ軸のプラス方向として定義する。携帯電話機の前面200の上部には受話器201があり、下部には送話器202がある。通話時には、受話器201に通話者の耳が押し当てられる。「前」は、通話時の通話者の方向でもある。
図8は、小型化手段5および小型化手段6の他の具体的な形状の例を示したものであり、ループアンテナ102bは、ヘリカル形状の線路形状の小型化手段5bおよび小型化手段6bを備える。
図9は、小型化手段5および小型化手段6の他の具体的な形状の例を示したものであり、ループアンテナ102cは、誘電体素子の小型化手段5cおよび小型化手段6cを備える。
図17は、小型化手段の他の具体的な形状の例を示したものであり、ループアンテナ107bは、ヘリカル形状の線路形状の小型化手段9bを備える。
図18は、小型化手段の他の具体的な形状の例を示したものであり、ループアンテナ107cは、誘電体素子の小型化手段9cを備える。
なお、無給電素子11を線路1の外側ではなく、点線で示したように無給電素子11aを線路1の内側に配置しても、同様の特性となる。
本発明の実施例9によれば、2つの共振周波数を有するので、例えば、2つの周波数のデュアルモードの携帯電話機に使用することができる。
2 給電点
3 中点
4 対称線
5、5a、5b、5c 小型化手段
6、6a、6b、6c 小型化手段
7 地板
8 短絡素子
9、9a、9b、9c 小型化手段
10 短絡素子
11 無給電素子
12 給電線路
13 印刷基板
14 給電点
15 スイッチ
16 RF回路
17a、17b、17c 給電点
18a、18b、18c A/D変換器
19 信号処理回路
100〜113、114a、114b、114c、115 ループアンテナ
200 携帯電話機の前面
201 受話器
202 送話器
Claims (1)
- 筐体と、
前記筐体の第1の面に配置される受話器と、
前記筐体に内蔵され、前記第1の面に略平行な第2の面内で、対称線によって略左右対称の形状をなし、この対称線のそれぞれの側において、所望周波数に対応する波長の略4分の1波長に相当する第1線路と、近接し折り返して電流ベクトルを相殺する略2分の1波長に相当する第2線路と、略4分の1波長に相当する第3線路とがこの順で接続され、前記対称線と前記ループ形状との第1交点に第1線路が接続され、他の第2交点に第3線路が接続されて構成される2波長ループアンテナと、
前記第1交点の近傍に配置され、前記ループアンテナに給電する給電点と
を具備することを特徴とする無線通信端末。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004005750A JP3791923B2 (ja) | 2004-01-13 | 2004-01-13 | 無線通信端末 |
US10/948,876 US7158820B2 (en) | 2004-01-13 | 2004-09-24 | Mobile communication terminal |
EP04022800A EP1555717B1 (en) | 2004-01-13 | 2004-09-24 | Mobile communication terminal with loop antenna |
DE602004005958T DE602004005958D1 (de) | 2004-01-13 | 2004-09-24 | Mobiles Kommunikationsendgerät mit Schleifenantenne |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004005750A JP3791923B2 (ja) | 2004-01-13 | 2004-01-13 | 無線通信端末 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2005203877A JP2005203877A (ja) | 2005-07-28 |
JP3791923B2 true JP3791923B2 (ja) | 2006-06-28 |
Family
ID=34616845
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004005750A Expired - Fee Related JP3791923B2 (ja) | 2004-01-13 | 2004-01-13 | 無線通信端末 |
Country Status (4)
Country | Link |
---|---|
US (1) | US7158820B2 (ja) |
EP (1) | EP1555717B1 (ja) |
JP (1) | JP3791923B2 (ja) |
DE (1) | DE602004005958D1 (ja) |
Families Citing this family (50)
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USD881172S1 (en) | 1975-11-03 | 2020-04-14 | Antennas Direct, Inc. | Antenna and base stand |
USD868045S1 (en) | 2008-02-29 | 2019-11-26 | Antennas Direct, Inc. | Antenna |
USD867347S1 (en) | 2008-02-29 | 2019-11-19 | Antennas Direct, Inc. | Antenna |
USD809490S1 (en) | 2008-02-29 | 2018-02-06 | Antennas Direct, Inc. | Antenna |
US7839347B2 (en) * | 2007-12-05 | 2010-11-23 | Antennas Direct, Inc. | Antenna assemblies with tapered loop antenna elements and reflectors |
US20140292597A1 (en) | 2007-12-05 | 2014-10-02 | Antennas Direct, Inc. | Antenna assemblies with tapered loop antenna elements |
US10957979B2 (en) | 2018-12-06 | 2021-03-23 | Antennas Direct, Inc. | Antenna assemblies |
KR100612142B1 (ko) * | 2004-01-16 | 2006-08-11 | 주식회사 케이티프리텔 | 이동통신 단말을 이용한 공중선계 원격 측정 감시 장치 및그 방법 |
JP4679950B2 (ja) * | 2005-04-11 | 2011-05-11 | 日本アンテナ株式会社 | ループアンテナ |
JP2007067884A (ja) * | 2005-08-31 | 2007-03-15 | Yokowo Co Ltd | アンテナ |
EP1953862A4 (en) * | 2005-11-22 | 2009-01-14 | Murata Manufacturing Co | COIL ANTENNA AND PORTABLE ELECTRONIC DEVICE |
JP2007228326A (ja) * | 2006-02-24 | 2007-09-06 | Omron Corp | ループアンテナ、およびrfidタグ |
US7456798B2 (en) | 2006-06-28 | 2008-11-25 | Freescale Semiconductor, Inc | Stacked loop antenna |
JP2008085587A (ja) * | 2006-09-27 | 2008-04-10 | Dx Antenna Co Ltd | 放射器およびそれを備えるアンテナ装置 |
EP1973192B1 (en) * | 2007-03-23 | 2017-06-14 | BlackBerry Limited | Antenne apparatus and associated methodology for a multi-band radio device |
US7629932B2 (en) | 2007-03-23 | 2009-12-08 | Research In Motion Limited | Antenna apparatus, and associated methodology, for a multi-band radio device |
JP4893889B2 (ja) * | 2007-07-09 | 2012-03-07 | 勝部 利夫 | 2重ループアンテナ |
CN101743666B (zh) | 2007-07-18 | 2013-04-03 | 富士通株式会社 | 无线标签以及无线标签的制造方法 |
TWI381577B (zh) * | 2007-07-18 | 2013-01-01 | Fujitsu Ltd | 無線射頻識別標籤及無線射頻識別標籤之製造方法 |
US7994986B2 (en) * | 2007-08-17 | 2011-08-09 | Ethertronics, Inc. | Antenna with near field deflector |
US20090051614A1 (en) * | 2007-08-20 | 2009-02-26 | Hang Wong | Folded dipole antenna |
JP2011505103A (ja) * | 2007-11-28 | 2011-02-17 | クゥアルコム・インコーポレイテッド | 無給電アンテナを使用する無線電力範囲増大 |
US11929562B2 (en) | 2007-12-05 | 2024-03-12 | Antennas Direct, Inc. | Antenna assemblies with tapered loop antenna elements |
US7990335B2 (en) | 2007-12-05 | 2011-08-02 | Antennas Direct, Inc. | Antenna assemblies with antenna elements and reflectors |
USD883265S1 (en) | 2008-02-29 | 2020-05-05 | Antennas Direct, Inc. | Antenna |
USD920962S1 (en) | 2008-02-29 | 2021-06-01 | Antennas Direct, Inc. | Base stand for antenna |
USD883264S1 (en) | 2008-02-29 | 2020-05-05 | Antennas Direct, Inc. | Antenna |
USD815073S1 (en) | 2008-02-29 | 2018-04-10 | Antennas Direct, Inc. | Antenna |
USD804459S1 (en) | 2008-02-29 | 2017-12-05 | Antennas Direct, Inc. | Antennas |
WO2009110381A1 (ja) | 2008-03-03 | 2009-09-11 | 株式会社村田製作所 | 無線icデバイス及び無線通信システム |
JP5319313B2 (ja) * | 2008-08-29 | 2013-10-16 | 峰光電子株式会社 | ループアンテナ |
WO2011078293A1 (ja) * | 2009-12-24 | 2011-06-30 | 旭硝子株式会社 | Rfidタグ |
USD664126S1 (en) | 2010-08-26 | 2012-07-24 | Antennas Direct, Inc. | Antenna |
GB2500136B (en) * | 2010-10-15 | 2015-02-18 | Microsoft Corp | Parasitic folded loop antenna |
JP5640817B2 (ja) * | 2011-02-28 | 2014-12-17 | Tdk株式会社 | アンテナ装置 |
JP5731300B2 (ja) * | 2011-07-12 | 2015-06-10 | Dxアンテナ株式会社 | アンテナ装置 |
KR101347993B1 (ko) * | 2011-10-25 | 2014-01-08 | 주식회사 에이스테크놀로지 | 단말기 하우징에 결합되는 안테나 |
US10743116B2 (en) | 2013-04-30 | 2020-08-11 | Starkey Laboratories, Inc. | Small loop antenna with shorting conductors for hearing assistance devices |
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-
2004
- 2004-01-13 JP JP2004005750A patent/JP3791923B2/ja not_active Expired - Fee Related
- 2004-09-24 US US10/948,876 patent/US7158820B2/en not_active Expired - Fee Related
- 2004-09-24 EP EP04022800A patent/EP1555717B1/en not_active Expired - Fee Related
- 2004-09-24 DE DE602004005958T patent/DE602004005958D1/de active Active
Also Published As
Publication number | Publication date |
---|---|
US7158820B2 (en) | 2007-01-02 |
DE602004005958D1 (de) | 2007-05-31 |
JP2005203877A (ja) | 2005-07-28 |
US20050153755A1 (en) | 2005-07-14 |
EP1555717A1 (en) | 2005-07-20 |
EP1555717B1 (en) | 2007-04-18 |
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