Department of Physics2024-11-0920030-8194-4800-10277-786X10.1117/12.4794842-s2.0-0242661359https://hdl.handle.net/20.500.14288/3425K-u band Fabry-Perot type resonances have been observed in the stop band of a metallodielectric photonic crystal by transmission measurements at microwave frequencies. The metallodielectric photonic crystal has a face centered cubic Bravais lattice structure with a lattice constant of 15 mm. Metallic spheres with 6.35 mm diameter are placed at the lattice sites. The metallodielectric 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, corresponding to a stop bandwidth center frequency ratio of 50%. The maximum rejection at the band center is 35 dB, corresponding to a 7 dB per unit cell rejection ratio. The Fabry-Perot type resonance in the k(u) band has a quality factor of 200, with a maximum transmission peak of -5 dB.pdfCrystallographyOpticsConference proceeding1996-756Xhttps://doi.org/10.1117/12.479484184544200033N/ANOIR00710