Multiband tunable dielectric resonator filters

摘要: We present here a new type of DR filters. The resonators have the shape truncated cone and their couplings are tuned by moving itself. Therefore, layouts do not require need coupling screws many them even irises. unique makes complete control strong possible through resonator movement. Using this technique we can build bandwidth tunable filters, i.e. different bandwidths in same housing. Different measurements presented with housing from 1 MHz to 20 MHz. also allows us achieve up 200 at 2 GHz, which is an order magnitude greater than that commonly be achieved standard filters simple construction, high Q work particularly well dielectric constants. They therefore very small, compact easily tunable. layout intrinsically implementation cross-couplings. To our knowledge breakthrough technology all these done for first time.