Antenna optimum design method, recording medium storing antenna optimum design program, and antenna device

摘要

PROBLEM TO BE SOLVED: To provide an antenna optimally designing method which makes the number of elements variable, offers the degree of freedom even to the arrangement of a parasitic element and also can be applied even to optimization for sector antenna miniaturization. SOLUTION: The prescribed number of chromosomes composed of element information including a position and an element length is generated (1), element information in which an element length is equal to or less than prescribed or position information is overlapped is eliminated (2), element information for one sector is constructed on the basis of each of the obtained chromosomes (3), the element information of an antenna is generated on the basis of each piece of the element information for one sector (4), an antenna characteristics is calculated on the basis of the element information of the antenna (5), the element information is evaluated on the basis of an object function to be ranked on a chromosome (6), a genetic operation is performed while preferentially preserving an excellent element information in each characteristics to generate a gene group of a new generation (7), and whether the gene group of a new generation meets a prescribed convergence condition is decided, designing is finished when the condition is met, and the above processes are repeated on the basis of a gene group of a new generation when the condition is not met (8).