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Inverted-L microstrip open slot antenna with wideband circularly polarization for Wimax application

  • Cheng-Zhong Lv (a1) and Lu-Chun Yang (a2)

Abstract

A novel wideband circularly polarized printed antenna is proposed in this paper. It consists of asymmetrical ground and monofilar spiral stubs connecting to it. By employing an inverted L-shaped microstrip feedline to excite the slit etched in the ground and spiral stubs, a wideband culalry polarized performance of the proposed antenna is realized. After optimization, the measured results of the final structure demonstrate that a 10 dB bandwidth of 76.2% from 2.6 to 5.8 GHz and a 3 dB axial-ratio bandwidth for circular polarization of 72.9% from 2.7 to 5.8 GHz could be achieved which could completely cover the Wimax (3.3–3.8 GHz) band.

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Corresponding author

Author for correspondence: Cheng-Zhong Lv, E-mail: 1101596177@qq.com

References

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