Abstract
We report the designing and simulation results of the HTS band-pass filters for Ku band with different bandwidths of 0.08 and 0.5GHz, in comparison with the same shape filters using normal conductors as the circuit conductors of the filter resonator. The examination results of the fabricated filter samples are compared with the filtering characteristics of S parameters. In the case of the narrower band, the simulation results of the planer-circuit-type filter which consists of resonators showed the filtering characteristics that strongly depend on the coupling coefficients and the resonant frequency of each resonator mutually. It is confirmed that the HTS planer circuit filters for Ku band exhibited unloaded Q with the volume of about 10cm3 greater than that of the normal conductor with the same structure.
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