An Optimised Network Topology to Minimise E-Fields Occuring in Coaxial Resonator Filters

A demand for high power filters is met by a theoretical procedure to produce prototype networks designed to minimise peak voltages occuring due to stored energies in resonant cavities. The stored energies are re-distributed within the filter. This is in contrast to previous techniques which have looked at physical design methods to minimise breakdown in the various technologies used for realisation. Limitations are placed on the optimisations to ensure practical topologies are generated. A 4th Degree Chebychev coaxial resonator type filter is developed using the new procedure. The peak fields responsible for breakdown at high incident power levels are reduced. This allows greater power handling capacity when compared to conventional network topologies producing the same overall small-signal transfer function.