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The power bandwidth of Fabry-Pérot-cavity antennas comprised of a thin partially-reflective-surface (PRS) above a perfectly conducting ground plane, based on its transverse-equivalent-network model and the simple susceptance model of a thin PRS, is studied. Considering the frequency variation of the PRS susceptance model, a new formula is proposed to estimate the power density bandwidth and thus (approximately)...
A simple solution for a 63 GHz planar single-feed Fabry-Pérot cavity (FPC) antenna covered by a thick metallic frequency selective surface (FFS) is proposed. The antenna is fed through a planar feed consisting of a coplanar-waveguide-fed slot on the ground plane of the cavity. The FSS is made of periodic circular slots in a thick Brass plate. Moreover, the sides of the metallic FSS are terminated...
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