Printed symmetric inverted-F antenna with a quasi-isotropic radiation pattern
- Authors
- Cho, Chihyun; Choo, Hosung; Park, Ikmo
- Issue Date
- Apr-2008
- Publisher
- JOHN WILEY & SONS INC
- Keywords
- RFID; tag antenna; isotropic radiation pattern; inverted-F
- Citation
- MICROWAVE AND OPTICAL TECHNOLOGY LETTERS, v.50, no.4, pp.927 - 930
- Journal Title
- MICROWAVE AND OPTICAL TECHNOLOGY LETTERS
- Volume
- 50
- Number
- 4
- Start Page
- 927
- End Page
- 930
- URI
- https://scholarworks.bwise.kr/hongik/handle/2020.sw.hongik/22760
- DOI
- 10.1002/mop.23247
- ISSN
- 0895-2477
- Abstract
- This article presents a tag antenna with a quasi-isotropic radiation pattern operating in the UHF band to eliminate the shadow zone in RFID systems. The proposed tag antenna has a symmetric inverted-F structure with a bent section and is printed on a 50 mu m-thick PET substrate for easy and low-cost fabrication. The detailed design parameters of the antenna were optimized using a Pareto genetic algorithm in conjunction with the IE3D EM simulator. The optimized antenna shows 3.2% fractional bandwidth for S-11 < - 10 dB, more than 87% efficiency in the operating frequency band, and less than 6 dB gain deviation. The measured reading range between the tag and reader is between 1.4 and 2.2 m. (C) 2008 Wiley Periodicals, Inc.
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Collections - College of Engineering > School of Electronic & Electrical Engineering > 1. Journal Articles
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