The present invention discloses a U-type superconductive microstrip
resonator and a filter corresponding to the same. The U-type
superconductive microstrip resonator is an asymmetric U-type
configuration formed by folding the superconductive microstrip, its total
length is a half of the wavelength corresponding to the center frequency
of the filter constituted by them. A filter can be constituted by a
number of said U-type superconductive microstrip resonators as required.
In this filter, these U-type microstrip resonators are arranged in
parallel in a manner that the longer sides direct a same direction, or in
a manner that every two adjacent U-type superconductive microstrip
resonators are symmetric about an axis. The filter constituted by said
U-type superconductive microstrip resonators can not only achieve the
same specification as an open-loop superconductive microstrip filter with
a same number off sections, but also achieve a smaller size than the
open-loop superconductive microstrip filter.