A Novel UHF RFID Reader Antenna

Xin Zhang; Lei Li

doi:10.4028/www.scientific.net/AMM.40-41.384

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 40-41A Novel UHF RFID Reader Antenna

A Novel UHF RFID Reader Antenna

Abstract:

In this paper, a new ultrahigh frequency circularly polarized microstrip antenna using in RFID reader is proposed. The proposed antenna has a simple structure, it has non-symmetrical rectangular corner truncated square patch, ground plane and a probe feed. To achieve good circular polarization(CP) radiation characteristics, it uses air as the dielectric layer. Simulation results of a constructed prototype with the center operating frequency at 923 MHz showed that the antenna has a return loss S11 of about −24 dB, a gain level of about 9.48 dBi. The antenna has good impedance and radiation characteristics over the required bandwidth, 920-925 MHz (Chinese UHF RFID band).

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Periodical:

Applied Mechanics and Materials (Volumes 40-41)

Pages:

384-387

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.40-41.384

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Online since:

November 2010

Authors:

Xin Zhang, Lei Li

Keywords:

Circularly Polarization, Microstrip Antenna, RFID Reader Antenna, Ultra-High Frequency (UHF)

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References

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