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[天线]A novel design of an UHF RFID reader antenna for PDA

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0楼发表于: 2009-04-29 15:59:22

A novel design of an UHF RFID reader antenna for PDA
Kim, ShinChul1; Park, Hoon1; Lee, Donghyun1; Choi, Jaehoon1 Source: Asia-Pacific Microwave Conference Proceedings, APMC, v 3, p 1471-1473, 2006, 2006 Asia-Pacific Microwave Conference Proceedings, APMC
ISBN-10: 4902339102
Conference: 2006 Asia-Pacific Microwave Conference, APMC, December 12,2006 - December 15,2006 Sponsor: Inst. Electronics, Information Communication Eng., IEICE Japan; IEEE MTT-S; URSI; EuMA; IEEE MTT-S Japan Chapter
Publisher: Institute of Electrical and Electronics Engineers Inc.

Author affiliation:
1  Department of Electrical and Computer Engineering, Hanyang University, 17 Haendang-dong, Seongdong-gu, Seoul, 133-791, Korea, Republic of

Abstract: In this paper, a circularly polarized (CP) microstrip antenna with vertical ground for RFID (Radio Frequency Identification) reader applications is presented. The proposed antenna is composed of a radiating patch on a substrate and a vertical ground surrounding four sides of the antenna. The vertical ground reduces the resonant frequency about 25 % comparing to that without vertical ground. Relatively good antenna gain of 5.6 dBi is obtained for such a small antenna. The results show that the proposed antenna has good impedance and radiation characteristics over the required bandwidth, 950-956 MHz (Japanese UHF RFID band). The dimension (100×100×13 mm3) of the antenna is suitable to use for a handheld PDA. Copyright 2006 IEICE. (6 refs.)

Controlled terms:  Antenna accessories  -  Antenna grounds  -  Architectural design  -  Microstrip antennas  -  Microwave antennas  -  Microwaves  -  Natural frequencies  -  Radio frequency identification (RFID)

Uncontrolled terms:  Antenna gains  -  Asia Pacific  -  Circularly polarized (CP)  -  conference proceedings  -  Microstrip (MSL)  -  novel design  -  radiation characteristics  -  Radio frequency identification (RF ID)  -  Resonant frequencies  -  small antennas  -  UHF RFID

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