Liquid-crystal-based reflectarray antenna with electronically switchable monopulse patterns

A printed reflectarray antenna, which generates a beam that can be electronically switched from a sum to a difference radiation pattern, is presented. This is achieved by applying a bias voltage of 20V to one-half of the aperture, which is constructed above a 500mum cavity containing liquid crystals...

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Veröffentlicht in:Electronics letters 2007-07, Vol.43 (14), p.744-745
Hauptverfasser: HU, W, ISMAIL, M. Y, CAHILL, R, ENCINAR, J. A, FUSCO, V. F, GAMBLE, H. S, LINTON, D, DICKIE, R, GRANT, N, REA, S. P
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Sprache:eng
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Zusammenfassung:A printed reflectarray antenna, which generates a beam that can be electronically switched from a sum to a difference radiation pattern, is presented. This is achieved by applying a bias voltage of 20V to one-half of the aperture, which is constructed above a 500mum cavity containing liquid crystals. Simulated results are shown to be in good agreement with measurements at X-band.
ISSN:0013-5194
1350-911X
DOI:10.1049/el:20071098