Star-Junction X-Band Coupled Resonator Multiplexer

A novel design of coupled resonator star-junction multiplexer is presented. The multiplexer has been designed at the X-band with four non-contiguous channels. The multiplexer topology is based on coupled resonator structure, and it consists of thirteen waveguide cavities, one of which serves as a resonating junction. The multiplexer is miniaturized in comparison to other conventional multiplexers, as it does not contain manifolds, circulators... etc. It also has reduced number of connections to the resonating junction

Novel multiplexer topologies based on coupled resonator structures

Novel multiplexer structures based on all-resonator topologies are presented here. The proposed multiplexers consist of only resonators without extra manifolds or circulators or power dividers. They can achieve various requirements of different filtering responses and arbitrary number of channels with miniaturized size. The proposed multiplexers are synthesized using optimization technique where coupling coefficients between coupled resonators are found. Different structures with various properties and responses are presented including symmetrical and asymmetrical channels. Reduction of the complexity of optimization processes is also presented

Coupled-resonator 3-dB power divider

This paper presents a technique to synthesise a coupled resonator power divider. . The design of the proposed power divider is based on coupling matrix optimization for multiple coupled resonators with multiple outputs. The synthesis employs coupling matrix optimisation techniques similar to those developed for coupled resonator filters. The realisation of such dividers is possible using microstrip resonators, waveguide cavities, or other types of resonators