volume | PIER Journals

2013-09-01

Broadband Multipath-Rejection Shorted Annular Patch Antenna for GPS Applications

Luyang Ji,

Dr. Luyang Ji

National Key Laboratory of Science & Technology on Antennas & Microwaves

Xidian Universit

China

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Guang Fu,

Dr. Guang Fu

Xidian University

China

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Zhi-Ya Zhang,

Dr. Zhi-Ya Zhang

School of Electronic Engineering

Xidian University

China

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Shu-Xi Gong

Prof. Shu-Xi Gong

Xidian University

China

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Progress In Electromagnetics Research Letters, Vol. 42, 89-96, 2013

doi:10.2528/PIERL13073008

Abstract

A compact shorted annular patch antenna for global positioning system is presented in this paper. Multipath-rejection capability is realized with two stacked shorted annular patches (SAP). The broadband characteristic of the (-10 dB return loss) input impedance bandwidth and the 3 dB bandwidth of axial ratio is achieved by employing capacitively coupled feed structure while the shorted pins located between the upper and the lower patches will realize the impendence matching of the high frequency, which can cover L5/L2/L1 bands for GPS and the relative input impedance bandwidth can achieve 50.6%. The size is 0.3λ×0.3λ for 1.1 GHz.

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Luyang Ji, Guang Fu, Zhi-Ya Zhang, and Shu-Xi Gong, "Broadband Multipath-Rejection Shorted Annular Patch Antenna for GPS Applications," Progress In Electromagnetics Research Letters, Vol. 42, 89-96, 2013.
doi:10.2528/PIERL13073008

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