Metallodielectric photonic crystal resonators

A resonator has been manufactured using a photonic crystal at K-u band frequencies. The photonic crystal has a face centered cubic Bravais lattice structure. In the transmission measurements, the photonic crystal displayed a directional bandgap with a lower band edge of 13.0 GHz, an upper band edge of 21.5 GHz, and a center frequency of 17.25 GHz. The corresponding stop bandwidth center frequency ratio is 50%. The maximum rejection at the band center is 35 dB. The unit cell rejection ratio is 7 dB per unit cell. The resonance has a quality factor of 200, and a maximum transmission peak of -5 dB