Patent ID: 9030279
Filing Date: 2015-05-12
Classification: H01P

Abstract:
1. A dielectric waveguide filter comprising: a block of dielectric material including a first plurality of resonators arranged in a first column and a second plurality of resonators arranged in a second column adjacent the first plurality of resonators; first and second RF signal input/output electrodes defined on the block of dielectric material; an interior layer of conductive material separating the first and second plurality of resonators a first direct coupling RF signal transmission window defined in the interior of the block of dielectric material between one of the resonators in the first plurality of resonators and a first one of the resonators in the second plurality of resonators for transmitting an RF signal directly from the first plurality of resonators into the second plurality of resonators; a first indirect cross-coupling RF signal transmission means defined by an external transmission line extending between a second one of the resonators in the first plurality of resonators and a second one of the resonators in the second plurality of resonators for transmitting the RF signal between the second ones of the resonators in the first and second plurality of resonators; and a second indirect cross-coupling RF signal transmission means defined by an internal window in the interior of the block of dielectric material located between a third one of the resonators in the first plurality of resonators and a third one of the resonators in the second plurality of resonators for transmitting the RF signal between the third ones of the resonators in the first and second plurality of resonators.