Photonic bandgap (PBG) technology for antennae

Using the new and powerful technology of photonic band gap (PBG) engineering to produce planar format antennas allows designers to shape antenna characteristics and improve their functional capabilities. In this paper, we describe both analytical and experimental work performed to develop ultra- wideband (> octave) PBG antennas, and to characterize frequency/bandwidth-agile PBG substrates. We also highlight new and interesting PBG concepts that should offer additional capabilities and applications, once they have matured and are commercially viable.