RF dielectric waveguide duplexer filter module

An RF dielectric waveguide filter module for the transmission of RF signals comprising at least:

• respective separate first and second blocks of dielectric material attached together along respective exterior surfaces thereof;
• the first and/or second blocks each defining one or more resonators;
• a layer of conductive material covering the exterior surfaces of each of the respective first and second blocks;
• one or more RF signal transmission windows in the layer of conductive material of the first and second blocks of dielectric material defining RF signal transmission coupling paths between the first and second blocks;
• and
• respective separate third and fourth blocks of dielectric material attached together along respective exterior surfaces thereof;
• the third and/or fourth blocks each defining one or more resonators;
• a layer of conductive material covering the exterior surfaces of each of the respective third and fourth blocks;
• and
• one or more RF signal transmission windows in the layer of conductive material of the third and fourth blocks of dielectric material defining RF signal transmission coupling paths between the third and fourth blocks.