A phased array antenna includes a plurality of radiating elements, a feed line assembly, a ground plane positioned between the plurality of radiating elements and the feed line assembly, with the ground plane having a plurality of openings positioned between the plurality of radiating elements and the...http://www.google.com/patents/US6377217?utm_source=gb-gplus-sharePatent US6377217 - Serially-fed phased array antennas with dielectric phase shifters
