Analysis and Optimization of Reflector Antenna Systems (Pattern Calculation, Optimum Directivity, Sidelobe Reduction)

This thesis studies the secondary pattern of a perfectly conducting reflector antenna system being illuminated by an array feed with arbitrary location, polarization, and orientation. The methods of analysis used are physical optics (PO) and the application of the Fast Fourier Transform (FFT) to the aperture fields obtained using geometrical optics (GO), geometrical theory of diffraction (GTD) and a brute-force FFT. Key features of the present work are (i) the reflector surface is completely arbitrary, (ii) the incident field from the array feed is most general with arbitrary polarization and location, and (iii) the edge diffraction is calculated by either UAT (Lee and Deschamps)or by UTD (Kouyoumjian and Pathak).

Name thesis:degree_name

Ph.D.

Level thesis:degree_level

Dissertation

Discipline thesis:degree_discipline

Electrical Engineering

Grantor

University of Illinois at Urbana-Champaign

Year dc:date

2014

Author dc:creator

• Lam, Peter Tak Chun

• Engineering, Electronics and Electrical

Identifier

(UMI)AAI8610952

OAI identifier oai:identifier

oai:www.ideals.illinois.edu:2142/69332