This letter presents the implementation of electromagnetic band-gap (EBG) structures with an inherently wide-band Archimedean spiral antenna. The EBG structure is designed to emulate a perfect magnetic conductor. The combination of technologies produces a low-profile and wide-band antenna. Utilization of an EBG structure offers an antenna height reduction of more than 69%, including the thickness of the EBG structure, compared to the traditional /spl lambda//4 cavity backed implementation of spiral antennas. Specifically, this approach allows the spiral antenna to maintain a considerable fraction (71 %) of its designed inherent broad-band behavior with no loss to its directive gain. In addition, the presented design offers full scalability.
No takes yet. Share an insight, caveat, or question.
Bell et al. (2004) studied this question.
Synapse has enriched 5 related papers. Consider them for comparative context: