The optimal performance of a phased array antenna controlled by a piezoelectric transducer, having an electromagnetic bandgap (EBG) structure in the ground plane of the feed microstrip lines, is illustrated. The EBG presence increases by about 10° the beam scanning angle achieved by the multiline phase shifter.
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http://iet.metastore.ingenta.com/content/journals/10.1049/el_20030652
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content/journals/10.1049/el_20030652
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