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초록
A novel dual-band circularly polarized (CP) RFID reader antenna utilizing the feeding network with Wilkinson power divider is proposed. The antenna consists of two square radiating patches, an isolator for dual-band performance, a bottom ground plane, and microstrip feeding networks. The impedance bandwidth for 15 dB return loss is about 110 MHz in the UHF band and about 100 MHz in the ISM band. The antenna gain is about 5.3 - 7.3 dBic in the UHF band and about 6.7 - 7.6 dBic in the ISM band over the 3 dB axial ratio CP bandwidth.
키워드
Antenna accessories; Antenna feeders; Antenna grounds; Electromagnetism; Feeding; Magnetism; Telecommunication systems; UHF devices; Advanced applications; Antenna gains; Axial ratio (AR); Bottom ground; Circularly polarized (CP); Circularly polarized (CP) antennas; CP bandwidth; Dual bands; Electro magnetics; Feeding configuration; Feeding networks; Impedance band widths; International conferences; ISM bands; Microstrip (MSL); Radiating patches; Return Loss (RL); RFID readers; UHF bands; Wilkinson power dividers; Antennas
- 제목
- A novel dual-band circularly polarized antenna using a feeding configuration for RFID reader
- 저자
- Shin, Dongmin; Park, Piljun; Kim, Jeongpyo; Seong, Wonmo; Choi, Jaehoon
- 발행일
- 2007-09
- 유형
- Conference Paper
- 저널명
- 2007 International Conference on Electromagnetics in Advanced Applications, ICEAA'07
- 페이지
- 511 ~ 514