| 摘要 |
PROBLEM TO BE SOLVED: To provide an antenna design method for improving frequency dependence of directionality, by optimizing antenna shape parameters based on an evaluated value obtained by sequentially executing a directionality calculation process, a dispersion calculation process and an evaluated value calculation process. SOLUTION: A plurality of point coordinates set on a side surface of an antenna are taken as the antenna shape parameters, and as processing processes for an evaluation function for executing an evaluation process for the parameters, following processes are included: STEP1: a directionality calculation process, STEP2: a dispersion calculation process, and STEP3: an evaluated value calculation process. By sequentially executing the processes, the evaluated value can be obtained. The antenna shape parameters are optimized based on the evaluated value. COPYRIGHT: (C)2007,JPO&INPIT
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