Polarisation insensitive planar dielectric slab waveguide extended hemi-elliptical lens

L. Xue, V. Fusco

Research output: Contribution to journalArticlepeer-review

8 Citations (Scopus)

Abstract

The authors present the performance of a patch fed planar dielectric slab waveguide extended hemi-elliptical lens antenna. The lens is constructed using polystyrene and weighs only 90 g. The maximum lens dimensions are 11 gimel x 13 gimel in the lens plane and it is 0.6 gimel thick. From 18 to 30 GHz the lens can handle both TM0 and TE0 signals simultaneously and at 22 GHz it can be made to generate a 1.5 dB axial ratio circularly polarised signal when fed by a linearly polarised patch antenna orientated to 38 degrees with respect to the horizontal. The measured gain and half-power beamwidth for TM0 and TE0 excitation at 28.5 GHz are 18.5 dB ( aperture efficiency of 85%), 4.1 degrees and 18.7 dB, 4.4 degrees, respectively, both with a 210 dB return loss bandwidth of about 10%.
Original languageEnglish
Pages (from-to)312-315
Number of pages4
JournalIET Microwaves, Antennas and Propagation
Volume2
Issue number4
DOIs
Publication statusPublished - 2008

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