Multifunction antennas - the interleaved sparse sub-arrays approach

Conference paper (2006)

Authors

CI Coman International Research Centre for Telecommunication and Radar

I.E. Lager International Research Centre for Telecommunication and Radar

L.P. Ligthart Microwave Technology and Systems for Radar

Research Group

International Research Centre for Telecommunication and Radar

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Published Date

2006

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Research Group

International Research Centre for Telecommunication and Radar

Abstract

A solution to desiging multifunction array antennas is discussed. Distinct system functions performed at separate frequency ranges are associated to sparse sub-arrays that are interleaved in a shared aperture configuration. The sparse architectures are designed using a combinatorial method that ensures an acceptable behaviorin the side-lobes region in conjunction with a narrow beamwidth. Experimental and numerical results are presented for a shared aperture antenna consisting of two interwoven sub-arrays that jointly cover a fractional bandwidth of 14% in the X-band.