Wideband folded-patch antennas fed by L-shaped probe

Simple folded-patch antennas fed by an L-shape probe are designed and studied experimentally. This simple antenna structure with thick air substrate attains a projection-length reduction of about 30% with reference to the conventional half-wave patch antenna. This antenna attains an impedance bandwidth of 35% and a gain of 6 dBi. © 2005 Wiley Periodicals, Inc. Microwave Opt Technol Lett 45: 352–355, 2005; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.20821