LowProfile Dielectric Resonator Antenna Arrays forReflector Feeds

Arraysofdielectric resonator antennas (DRAs)areinvestigated asreplacements forconven- tional corrugated feedantennas inareflector system. Thesearrays arelowprofile, offerrelatively wide bandwidth (15%), andareamenable todevice integra- tion. Prototype passive arrays offourandeight ele- mentshavebeendesigned andtested atX-band. Arrays atKa-Band arecurrently being designed.