Summary
International Symposium on Antennas and Propagation
2014
Session Number:TH2B
Session:
Number:TH2B_03
Three-Dimensional Diffractive Gaussian Beam Analysis Method For Multi-Reflector Antennas
Fangyuan Cheng, Zejian Lu, Hai Wang, Xiaoming Liu, Junsheng Yu, Xiaodong Chen,
pp.-
Publication Date:2014/12/2
Online ISSN:2188-5079
Summary:
A three-dimensional Diffractive Gaussian Beam Analysis approach for analyzing quasi-optical multi-reflector systems is presented. The illuminating field over the whole input plane is analyzed into a set of elementary Gaussian beams. These are propagated to the reflector. Geometric Optics initially treats reflection, while edge diffraction is modeled using the canonical problem of a 3-D Gaussian beam incident upon an opaque Kirchhoff half-screen. The output beams can again be expanded into a set of Gaussian beams. The proposed analysis is verified against a GRASP Physical Optics of a multi-reflector antenna system.