KR830009664A - 소형 루프 안테나 - Google Patents
소형 루프 안테나 Download PDFInfo
- Publication number
- KR830009664A KR830009664A KR1019820000884A KR820000884A KR830009664A KR 830009664 A KR830009664 A KR 830009664A KR 1019820000884 A KR1019820000884 A KR 1019820000884A KR 820000884 A KR820000884 A KR 820000884A KR 830009664 A KR830009664 A KR 830009664A
- Authority
- KR
- South Korea
- Prior art keywords
- loop antenna
- resonance frequency
- loop
- antenna
- cut
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims 3
- 239000004020 conductor Substances 0.000 claims 3
- 239000000463 material Substances 0.000 claims 1
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
- H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
- H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q21/00—Antenna arrays or systems
- H01Q21/30—Combinations of separate antenna units operating in different wavebands and connected to a common feeder system
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
- H01Q9/04—Resonant antennas
- H01Q9/06—Details
- H01Q9/14—Length of element or elements adjustable
Landscapes
- Details Of Aerials (AREA)
Abstract
내용 없음
Description
본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음
제2도,제3도는 본 발명의 안테나의 동작원리 및 실시예의 설명도.
제4도는 본 발명의 구성요소의 가변용량소자의 구체실예.
Claims (2)
- 일부가 잘려진 루프 모양의 도체와 이 도체의 잘려진 부분에 접속된 용량소재를 장치한 루프안테나에 있어서, 전기한 용량소자의 공진주파수(f0)와, 이 안테나의 입력 애드미턴스가 최소로 되는 공진주파수(fm)와의 비(f0/fm)가 하기의 범위에 들어가도록 전기한 도체의 루프면적, 주위길이 및 등가반경을 조정한 소형 루프 안테나. 0.5f0/fm4.0
- 용량소자는, 넓은 대역에 걸쳐서 공진 주파숴를 바꿀 수 있는 가변 용량 소자인 특허청구의 범위 제1항 기재의 소형 루프 안테나.※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP26910 | 1981-02-27 | ||
JP56026910A JPS57142002A (en) | 1981-02-27 | 1981-02-27 | Small-sized loop antenna |
JP56-26910 | 1981-02-27 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR830009664A true KR830009664A (ko) | 1983-12-22 |
KR860000331B1 KR860000331B1 (ko) | 1986-04-09 |
Family
ID=12206366
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR8200884A KR860000331B1 (ko) | 1981-02-27 | 1982-02-27 | 소형 루프 안테나 |
Country Status (6)
Country | Link |
---|---|
US (1) | US4518965A (ko) |
EP (1) | EP0060628B1 (ko) |
JP (1) | JPS57142002A (ko) |
KR (1) | KR860000331B1 (ko) |
CA (1) | CA1195771A (ko) |
DE (1) | DE3268209D1 (ko) |
Families Citing this family (57)
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FR2599847B1 (fr) * | 1986-06-10 | 1988-08-26 | Telediffusion Fse | Sonde perturbatrice de courant a boucle resonnante |
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DE8709495U1 (de) * | 1987-07-10 | 1987-10-01 | Mühlau, Karl-Heinz, 7880 Bad Säckingen | Sende- und Empfangsantenne |
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CA2004365C (en) * | 1989-01-23 | 1994-05-03 | William Tan | Reactance buffered loop antenna and method for making the same |
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DE9115582U1 (de) * | 1991-12-16 | 1992-12-17 | Siemens AG, 80333 München | Leiterplattenantenne |
JP3282082B2 (ja) * | 1992-03-26 | 2002-05-13 | アイシン精機株式会社 | 円偏波用線状アンテナ |
US5298894A (en) * | 1992-06-17 | 1994-03-29 | Badger Meter, Inc. | Utility meter transponder/antenna assembly for underground installations |
GB2282028A (en) * | 1993-08-26 | 1995-03-22 | Betacom Plc | Cordless telephone with loop antenna |
US5646633A (en) * | 1995-04-05 | 1997-07-08 | Mcdonnell Douglas Corporation | Microstrip antenna having a plurality of broken loops |
EP0776530A4 (en) * | 1995-06-21 | 1998-06-10 | Motorola Inc | METHOD AND ANTENNA PRODUCING AN OMNIDIRECTIONAL RADIATION DIAGRAM |
CA2168138A1 (en) * | 1996-01-26 | 1997-07-27 | Robert Gordon Yewen | Low frequency electromagnetic communication system, and antenna therefor |
EP0786824A1 (en) * | 1996-01-27 | 1997-07-30 | Akitoshi Imamura | A microloop antenna |
US6218995B1 (en) | 1997-06-13 | 2001-04-17 | Itron, Inc. | Telemetry antenna system |
CA2276140C (en) | 1997-10-24 | 2004-10-19 | Itron, Inc. | Passive radiator |
GB9806488D0 (en) * | 1998-03-27 | 1998-05-27 | Philips Electronics Nv | Radio apparatus |
US5999138A (en) * | 1998-03-30 | 1999-12-07 | Ponce De Leon; Lorenzo A. | Low power switched diversity antenna system |
US6304230B1 (en) * | 1999-11-04 | 2001-10-16 | Sigem | Multiple coupled resonant loop antenna |
US6359594B1 (en) * | 1999-12-01 | 2002-03-19 | Logitech Europe S.A. | Loop antenna parasitics reduction technique |
DE10047214A1 (de) * | 2000-09-23 | 2002-04-11 | Philips Corp Intellectual Pty | Schaltungsanordnung |
RU2239261C2 (ru) * | 2000-10-19 | 2004-10-27 | Зайцев Георгий Михайлович | Способ обеспечения направленного действия малогабаритного антенного устройства и малогабаритное антенное устройство для осуществления способа |
JP3629448B2 (ja) | 2001-07-27 | 2005-03-16 | Tdk株式会社 | アンテナ装置及びそれを備えた電子機器 |
EP1495338A2 (de) * | 2002-04-18 | 2005-01-12 | Ackermann Patent GmbH | Verfahren und einrichtung zum aufnehmen und aufbereiten von störfeldern und störstrahlen |
JP2004328128A (ja) * | 2003-04-22 | 2004-11-18 | Alps Electric Co Ltd | アンテナ装置 |
DE10325399A1 (de) * | 2003-05-28 | 2004-12-30 | Atmel Germany Gmbh | Schaltungsanordnung zur Phasenmodulation für rückstreubasierte Transporder |
JP2009514307A (ja) * | 2005-10-26 | 2009-04-02 | エヌエックスピー ビー ヴィ | 携帯電子機器用uhf/vhf平面アンテナ装置 |
US7268735B2 (en) * | 2005-12-23 | 2007-09-11 | Chin-Yuan Chung | Antenna structure |
KR100797172B1 (ko) * | 2006-08-08 | 2008-01-23 | 삼성전자주식회사 | 정합회로가 일체로 형성된 루프 안테나 |
US7876274B2 (en) | 2007-06-21 | 2011-01-25 | Apple Inc. | Wireless handheld electronic device |
GB0724692D0 (en) * | 2007-12-19 | 2008-01-30 | Rhodes Mark | Antenna formed of multiple resonant loops |
CN201689980U (zh) * | 2010-05-04 | 2010-12-29 | 中兴通讯股份有限公司 | 偶极子天线及移动通信终端 |
EP2752716B1 (en) | 2010-06-11 | 2018-12-19 | Ricoh Company, Ltd. | Information storage device, removable device, developer container, and image forming apparatus |
US9070969B2 (en) | 2010-07-06 | 2015-06-30 | Apple Inc. | Tunable antenna systems |
US8556178B2 (en) * | 2011-03-04 | 2013-10-15 | Hand Held Products, Inc. | RFID devices using metamaterial antennas |
US9166279B2 (en) | 2011-03-07 | 2015-10-20 | Apple Inc. | Tunable antenna system with receiver diversity |
US9246221B2 (en) | 2011-03-07 | 2016-01-26 | Apple Inc. | Tunable loop antennas |
US8776002B2 (en) * | 2011-09-06 | 2014-07-08 | Variable Z0, Ltd. | Variable Z0 antenna device design system and method |
US9350069B2 (en) | 2012-01-04 | 2016-05-24 | Apple Inc. | Antenna with switchable inductor low-band tuning |
US9190712B2 (en) | 2012-02-03 | 2015-11-17 | Apple Inc. | Tunable antenna system |
US8798554B2 (en) | 2012-02-08 | 2014-08-05 | Apple Inc. | Tunable antenna system with multiple feeds |
US9559433B2 (en) | 2013-03-18 | 2017-01-31 | Apple Inc. | Antenna system having two antennas and three ports |
US9331397B2 (en) | 2013-03-18 | 2016-05-03 | Apple Inc. | Tunable antenna with slot-based parasitic element |
US9444130B2 (en) | 2013-04-10 | 2016-09-13 | Apple Inc. | Antenna system with return path tuning and loop element |
US9531059B2 (en) | 2013-05-24 | 2016-12-27 | Microsoft Technology Licensing, Llc | Side face antenna for a computing device case |
US9698466B2 (en) | 2013-05-24 | 2017-07-04 | Microsoft Technology Licensing, Llc | Radiating structure formed as a part of a metal computing device case |
US9543639B2 (en) * | 2013-05-24 | 2017-01-10 | Microsoft Technology Licensing, Llc | Back face antenna in a computing device case |
AU2015379278B2 (en) * | 2015-01-29 | 2019-10-31 | Sato Holdings Kabushiki Kaisha | RFID infinity antenna |
DE102018106095B3 (de) * | 2017-11-29 | 2019-01-31 | Antennentechnik Abb Bad Blankenburg Gmbh | Aktive Multiband-Antenne für den terrestrischen Rundfunkempfang |
CN108711669B (zh) * | 2018-05-28 | 2021-04-23 | 京东方科技集团股份有限公司 | 一种频率可调天线及其制作方法 |
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US2467962A (en) * | 1947-01-28 | 1949-04-19 | Electronies Res Inc | High-frequency antenna |
US2551664A (en) * | 1949-11-29 | 1951-05-08 | Galper Samuel | Television antenna |
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-
1981
- 1981-02-27 JP JP56026910A patent/JPS57142002A/ja active Granted
-
1982
- 1982-02-12 US US06/348,206 patent/US4518965A/en not_active Expired - Lifetime
- 1982-02-23 EP EP82300926A patent/EP0060628B1/en not_active Expired
- 1982-02-23 DE DE8282300926T patent/DE3268209D1/de not_active Expired
- 1982-02-25 CA CA000397099A patent/CA1195771A/en not_active Expired
- 1982-02-27 KR KR8200884A patent/KR860000331B1/ko active
Also Published As
Publication number | Publication date |
---|---|
US4518965A (en) | 1985-05-21 |
DE3268209D1 (en) | 1986-02-13 |
CA1195771A (en) | 1985-10-22 |
JPS57142002A (en) | 1982-09-02 |
KR860000331B1 (ko) | 1986-04-09 |
EP0060628A1 (en) | 1982-09-22 |
JPH0227841B2 (ko) | 1990-06-20 |
EP0060628B1 (en) | 1986-01-02 |
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