誸電体表面上の任意形状導体素子を用いた高性能電磁波回路素子の開発

摘要

導体基板で裏打ちされた誘電体表面上に導体ストrnリップを設けたり，あるいは導体基板にスロットをrn設けることで，マイクロ波やミリ波領域の電磁波伝rn送線路が構成される．これら伝送線路の一部の区間rnに任意形状の導体パッチやスロットを装荷すれば，rnその伝送特性は電磁波の反射や散乱によって乱されrn劣化することになる．%This paper describes a method for constructing electromagnetic-wave circuit components with high performance. These circuits consist of arbitrarily-shaped conductor patches and slots on the conductor-backed dielectric substrates. We first develop an analytical method based on the moment method and then combine it with the GA-optimization method to design circuit components. As design examples, the GA-optimized filters construct a specified passband successfully and also realize attenuation poles on each side of the passband, while keeping a compact size. The effectiveness of the present filters is also investigated by the comparison between the calculated and the measured results.