CIRCULARLY POLARIZED PATCH ANTENNA WITH A STACKED SLOT-RING | Zendy

TheNan Chang | Zendy; JyunMing Lin | Zendy

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CIRCULARLY POLARIZED PATCH ANTENNA WITH A STACKED SLOT-RING

Author(s) -

TheNan Chang,

JyunMing Lin

Publication year - 2013

Publication title -

progress in electromagnetics research letters

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 0.245

H-Index - 33

ISSN - 1937-6480

DOI - 10.2528/pierl12110618

Subject(s) - ring (chemistry) , patch antenna , turnstile antenna , materials science , microstrip antenna , antenna (radio) , optoelectronics , coaxial antenna , telecommunications , engineering , chemistry , organic chemistry

A probe-fed circularly polarized microstrip patch antenna is presented. By stacking a sot-ring a proper distance above the patch, traveling current along the periphery of the slot-ring is formed. The axial-ratio bandwidth is optimized by varying the size of the slot-ring and the size of the ground plane. Through this simple method, 3- dB axial-ratio bandwidth of 9.8% centered at 915MHz is achieved for RFID use.

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