KR100604694B1 - 무선 판독기용 병렬 급전 다중 루프 안테나 - Google Patents
무선 판독기용 병렬 급전 다중 루프 안테나 Download PDFInfo
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- KR100604694B1 KR100604694B1 KR1020040037882A KR20040037882A KR100604694B1 KR 100604694 B1 KR100604694 B1 KR 100604694B1 KR 1020040037882 A KR1020040037882 A KR 1020040037882A KR 20040037882 A KR20040037882 A KR 20040037882A KR 100604694 B1 KR100604694 B1 KR 100604694B1
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- winding
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- 238000004804 winding Methods 0.000 claims abstract description 99
- 230000005674 electromagnetic induction Effects 0.000 claims abstract description 9
- 238000009826 distribution Methods 0.000 description 7
- 230000005540 biological transmission Effects 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 230000001413 cellular effect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
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Classifications
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- 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
- H01Q7/06—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 core of ferromagnetic material
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- 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
- H01Q1/2208—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems
- H01Q1/2216—Supports; Mounting means by structural association with other equipment or articles associated with components used in interrogation type services, i.e. in systems for information exchange between an interrogator/reader and a tag/transponder, e.g. in Radio Frequency Identification [RFID] systems used in interrogator/reader equipment
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- 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
- H01Q7/04—Screened antennas
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B5/00—Near-field transmission systems, e.g. inductive or capacitive transmission systems
- H04B5/20—Near-field transmission systems, e.g. inductive or capacitive transmission systems characterised by the transmission technique; characterised by the transmission medium
- H04B5/24—Inductive coupling
- H04B5/26—Inductive coupling using coils
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Variable-Direction Aerials And Aerial Arrays (AREA)
- Near-Field Transmission Systems (AREA)
- Details Of Aerials (AREA)
Abstract
Description
Claims (3)
- 내부에 메모리가 존재하는 IC 칩 및 안테나를 구비하는 휴대할 수 있는 물건(비접촉식 휴대물품)과 전자기 유도를 통하여 정보를 교환하기 위한 무선 판독기(RFID Reader)용 루프 안테나에 있어서,상기 루프 안테나는 N개(N은 2이상의 정수)의 권선 그룹(각각의 권선 그룹은 적어도 한번 이상 와인딩된 것)을 포함하고, 상기 N개의 권선 그룹은 내측의 권선 그룹의 최외측 권선으로부터 외측 권선 그룹의 최내측 권선 사이에 소정의 간격을 두고 형성되고, 상기 각각의 권선 그룹은 모두 동일한 방향으로 와인딩되고, 그리고 상기 N개의 권선 그룹은 각각 병렬로 연결되는 것을 특징으로 하는 병렬 급전 다중 루프 안테나.
- 제1항에 있어서, 상기 권선 그룹은 2개인 것을 특징으로 하는 다중 루프 안테나.
- 내부에 정보를 저장하기 위한 메모리가 존재하는 IC 칩 및 안테나를 구비하는 물건(비접촉식 상품)과 전자기 유도를 통하여 정보를 교환하기 위한 무선 판독기(RFID Reader)용 루프 안테나에 있어서,상기 루프 안테나는 N개(N은 2이상의 정수)의 권선 그룹(각각의 권선 그룹은 적어도 한번 이상 와인딩된 것)을 포함하고, 상기 N개의 권선 그룹은 내측의 권선 그룹의 최외측 권선으로부터 외측 권선 그룹의 최내측 권선 사이에 소정의 간격을 두고 형성되고, 상기 각각의 권선 그룹은 모두 동일한 방향으로 와인딩되고, 그리고 상기 N개의 권선 그룹은 각각 병렬로 연결되는 것을 특징으로 하는 병렬 급전 다중 루프 안테나.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040037882A KR100604694B1 (ko) | 2004-05-27 | 2004-05-27 | 무선 판독기용 병렬 급전 다중 루프 안테나 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040037882A KR100604694B1 (ko) | 2004-05-27 | 2004-05-27 | 무선 판독기용 병렬 급전 다중 루프 안테나 |
Publications (2)
Publication Number | Publication Date |
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KR20050112696A KR20050112696A (ko) | 2005-12-01 |
KR100604694B1 true KR100604694B1 (ko) | 2006-07-24 |
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020040037882A KR100604694B1 (ko) | 2004-05-27 | 2004-05-27 | 무선 판독기용 병렬 급전 다중 루프 안테나 |
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KR (1) | KR100604694B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
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JP4452782B2 (ja) * | 2006-12-20 | 2010-04-21 | 仁川大學校産學協力團 | Rfidリーダ用多重ループアンテナ、これを有するrfidリーダ、及びこれを有するrfidシステム |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07303005A (ja) * | 1994-03-10 | 1995-11-14 | Nippondenso Co Ltd | 車両用アンテナ装置 |
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2004
- 2004-05-27 KR KR1020040037882A patent/KR100604694B1/ko not_active IP Right Cessation
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07303005A (ja) * | 1994-03-10 | 1995-11-14 | Nippondenso Co Ltd | 車両用アンテナ装置 |
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KR20050112696A (ko) | 2005-12-01 |
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