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Polarization and Space Diversity Antenna Using Inverted-F Antennas for RFID Reader Applications
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- Authors
- Jong Sung Kim, Kwang Ho Shin, Seung Mo Park, Won Kyu Choi, Nak Seon Seong
- Issue Date
- 2006-07
- Citation
- IEEE Antennas and Wireless Propagation Letters, v.5, no.1, pp.265-268
- ISSN
- 1536-1225
- Publisher
- IEEE
- Language
- English
- Type
- Journal Article
- Abstract
- An orthogonal antenna is presented for reader applications of radio frequency identification (RFID) at 433 MHz. The antenna is composed of two 1 × 2 subarrays orthogonally placed on a ground plane. Two different feeding networks are introduced to control horizontal and vertical radiation current flows for each subarray, respectively. An inverted-F structure is used as a radiation element with vertical and horizontal currents flowing on the radiator, thereby obtaining two linear polarizations. Antenna gains are 3.71 and 3.43 dBi and isolation between the two input ports is less than 25 dB. © 2006 IEEE.
- KSP Keywords
- Diversity antenna, Inverted-F antenna(IFA), Passive radio frequency identification(RFID), RFID reader, Radio Frequency(RF), Reader applications, Space diversity, feeding network, ground planes(GP), radiation element