Far Field Vector Analysis of the Dielectric Fresnel Zone Plate Antenna
Abstract
A vectorial analysis of the Fresnel Zone plate antenna
(FZPA) with a dielectric layer for changing the phase of
the incident wave has been presented. The radiation
properties of the feed are chosen as a raised cosine
function power pattern approximation with no cross
polarization. The electric field on the aperture plane has
first been found, then the radiation field, gain and
efficiency have been obtained by "equivalence magnetic
currents".
Several FZPA are fabricated and experimental results
show a good agreement with the theoretical study.
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