Theoretical and experimental investigations of passive and integrated antennas

Abstract

In this thesis, the electric field integral equation (EFIE) and the mixed-potential integral equation (MPIE) formulations together with the method of moments (MoM) are both employed to solve the electromagnetic problems in multilayered medium. In order to solve the electrically large-scale EM problems, we present an accurate and efficient method combined the precorrected-FFT (P-FFT) algorithm to analyze large-scale structures in the multilayered medium. Moreover, in order to analyze the patch antenna characteristics with finite grounded substrates, EFIE-PMCHW together with method of moments (MoM) is developed, which takes into account the effect of the finite size of the substrate and the ground plane. Finally, as a demonstration of the capability of accurate and efficient electromagnetic (EM) modeling methods developed, a number of designs of integrated ultra-wideband antennas and fully integrated CMOS UWB transmitter modules were studied and results are presented.