A Systematic Study of Varying Reference Phase in the Design of Circular Fresnel Zone Plate Antennas

Author

Stout-Grandy, Sara M. ; Petosa, Aldo ; Minin, Igor V. ; Minin, Oleg V. ; Wight, Jim

Author_Institution

Dept. of Electron., Carleton Univ., Ottawa, Ont.

Volume

54

Issue

12

fYear

2006

Firstpage

3629

Lastpage

3637

Abstract

A circular Fresnel zone plate antenna was simulated using a finite difference time domain software to study the effect of changing the reference phase from the standard 0deg to any value between 0deg and 180deg. Several prototypes were built to validate the simulations using four different focal-length-to-diameter (F/D) ratios. It was found that a significant improvement in the level of the first sidelobe, up to about 9 dB according to the simulations, could be achieved without sacrificing gain or cross-polarization levels

Keywords

antenna radiation patterns; finite difference time-domain analysis; planar antennas; zone plates; circular Fresnel zone plate antenna; finite difference time domain software; reference phase; Antenna measurements; Apertures; Finite difference methods; Fresnel reflection; Lenses; Optical design; Software prototyping; Software standards; Time domain analysis; Virtual prototyping; Fresnel zone plate lens antennas; sidelobe level control;

fLanguage

English

Journal_Title

Antennas and Propagation, IEEE Transactions on

Publisher

ieee

ISSN

0018-926X

Type

jour

DOI

10.1109/TAP.2006.886552

Filename

4020423