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Abstract
The design procedure of a novel antenna matching network is proposed to overcome the narrowband characteristics of the monopole antenna. The matching network operating from 156 to 200 MHz is designed based on micro-genetic algorithm (micro-GA). Optional topology and component parameters of the matching network can be determined simultaneously by appropriately coding. The micro-GA iteratively guides a population of randomly selected design candidates toward the optimal solution. Measured results show that voltage standing wave ratio (VSWR) of the antenna system is less than 2.0 and transducer power gain is greater than 88.89% over the desired band.