An Efficient Realization of Canonical Filter Using Lesser Number of Physical Couplings

Abstract

In this paper a canonical cross coupled filter (10-4-4) is proposed which utilizes a hexatuplet for the realization of 4-complex group delay equalization zeros while two pair of transmission zeros are realized using two cross couplings available in the folded canonical structure. So, effectively, three cross couplings are employed for the generation of eight transmission zeros. Dielectric resonators are used for better in band performance compared to Invar cavity based filter. The EM simulated response of the designed filter has been substantiated with the measured response.