A filter comprising a plurality of zig-zag hairpin-comb resonators that are separated by one or more coupling gaps is provided. The zig-zag hairpin-comb resonators may be fabricated using HTS or non-HTS planar structures, such as microstrip, stripline and suspended stripline. Each of the zig-zag hairpin-comb resonators comprises a pair of neighboring legs. The neighboring legs of adjacent resonators straddle a respective coupling gap. Each of the neighboring legs is formed with zig-zag sections. In this manner, the filters provide unusual compactness, as well as minimizing coupling between the resonators.

 
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< Hybrid superconductor technology filter

< DUAL-MODE BANDPASS FILTER WITH DIRECT CAPACITIVE COUPLINGS AND FAR-FIELD SUPPRESSION STRUCTURES

> High temperature superconductor tunable filter

> Resonator, filter, composite filter, transmitting and receving apparatus, and communication apparatus

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