Patent ID: 7332987

Claim:
A multimode dielectric resonator device comprising a dielectric core disposed in a cavity, said dielectric core producing a first TM 01 δ mode or TM 011 mode having an electric field directed in a first direction, a second TM 01 δ or TM 011 mode having an electric field directed in a second direction perpendicular to the first direction, a first TE 01 δ mode having an electric field rotated in a plane perpendicular to the first direction, and a second TE 01 δ mode having an electric field rotated in a plane perpendicular to the second direction, respectively, wherein individual dielectric core portions having electric flux of an even-mode and an odd-mode of TE coupling mode in the first and the second TE 01 δ modes passing therethrough have different effective dielectric constants, and individual dielectric core portions having electric flux of an even-mode and an odd-mode of TM coupling mode in the first and the second TM 01 δ or TM 011 mode passing therethrough have substantially equal effective dielectric constants.