Patent ID: 6545571
Filing Date: 2003-04-08
Classification: H01P,H03B

Abstract:
A tunable HE0&ggr;&dgr; mode dielectric resonator comprising:a disk formed in the shape of a cylinder having a diameter D and formed from a first dielectric material configured to exhibit a dielectric constant âˆˆr, said disk having first and second opposing ends and a closed curve wall extending between said first and second ends, said disk having a hole exhibiting a diameter less than 0.2 D penetrating therein from said first end and extending toward said second end, wherein at least one of said first and second ends serves as a boundary between said disk and a second dielectric material; a conductive coating on said wall; and a dielectric tuning plug having a dielectric constant less than 0.5âˆˆr extending into said hole in said disk, wherein said resonator has a lowest resonant frequency in a HE0&ggr;&dgr; mode.