경사진 배열 구조를 갖는 위상배열 안테나의 복사패턴 계산

Calculation of Radiation Patterns on Phased Arry Antenna of Slant Grid

The radiation characteristics of a phased array antenna consisted of rectangular waveguides with a slant grid are investigated here. In particular, the effects of the slant angle on the radiation patterns are calculated by solving numerically the integral equation to the electric field over the waveguide aperture in view of the modal analysis. And it is found that the blindness on the radiation pattern can be moved by inserting a dielectric plug or sheath properly.