volume | PIER Journals

Abstract

This paper presents a novel design of stacked dual layer strip lines fed patch antenna. The wideband characteristics can be achieved by employing approximate L-probes coupling feeding schemes. Dual layer strip lines which are composed of one broadband 180° hybrid and two wideband 90° hybrids are introduced as feeding network in this design. As a result, the designed antenna has a 59.4% 10-dB input reflection coefficient bandwidth and 48.3% 3-dB axial ratio (AR) bandwidth relative to the center frequency respectively. The designed antenna occupies a compact size of 80 mm×80 mm×32 mm. The final antenna provides a very good circularly polarized radiation for Global Navigation Satellite System applications including GPS, GLONASS, Galileo and Compass.

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Dr. Xi Li

Dr. Lin Yang

Mr. Qiong Chen