A Miniaturized Circularly Polarized Antenna Design for RFID Reader

Yan Zhong Yu; Yun Yan Wang; Yan Ru Chen

doi:10.4028/www.scientific.net/AMM.697.425

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vol. 697A Miniaturized Circularly Polarized Antenna Design...

A Miniaturized Circularly Polarized Antenna Design for RFID Reader

Abstract:

A miniaturized circularly polarized (CP) antenna for ultra-high frequency (UHF) radio-frequency identification (RFID) reader is designed in the present paper. For the aim of miniaturizing antenna, the square radiating patch is opened by four T-shape slots. This can extend the route of surface current, as a result the operating frequency drops and the size reduces. In additional two diagonal corners of the radiation patch are truncated by a square to achieve CP operation. The designed antenna is calculated and optimized by HFSS. The optimized antenna exhibits satisfied performances, and is therefore suitable for UHF RFID reader applications. The designed antenna shows the advantages of small size, simple structure, and low cost.

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Periodical:

Applied Mechanics and Materials (Volume 697)

Pages:

425-428

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.697.425

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Online since:

November 2014

Authors:

Yan Zhong Yu*, Yun Yan Wang, Yan Ru Chen

Keywords:

Circularly Polarized (CP), Miniaturization, Reader Antenna, Truncation, T-Shape Slot

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* - Corresponding Author

References

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