Abstract
AbstractWe propose a circularly polarized cavity‐backed slot (CBS) antenna which is composed of two symmetrically placed L‐shaped slots on a 150 × 100 mm2 ground plane (back side) and fed by a microstrip network on the opposite plane (front side). A metal cavity is placed at the back side to reduce the effect caused by the wall behind the antenna and enhance the radiation on the front side; in this way it is suitable to be “buried‐on‐wall.” Simulation results of the return loss, radiation patterns, axial ratios, and gain are presented. The antenna was fabricated on FR‐4 substrate and the measured return loss agrees well with the simulated one. © 2007 Wiley Periodicals, Inc. Microwave Opt Technol Lett 49: 3169–3172, 2007; Published online in Wiley InterScience (www.interscience.wiley.com).DOI 10.1002/mop.22969
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