![Sample our Physical Sciences journals, sign in here to start your FREE access for 14 days]({"type":"image" , "src" : "/sda/110819/TOC-Subject-Sample-2021-Physical-Sciences.jpg"})
Abstract
This paper describes a new numerical approach for the broad-band analysis of aperture antennas which avoids the use of both ω-domain and k-domain discrete Fourier transform. The FDTD method is adopted for the near field analysis of the antenna and the aperture field is then processed by time-domain modal expansion to obtain broadband gain pattern. The new method is specified for rectangular aperture antennas and is demonstrated by means of some examples.