Superconducting tunable filter with constant bandwidth using coplanar waveguide resonators
Jiang Ying
1
, Li Bo
2
, Wei Bin
1, †
, Guo Xu-Bo
1
, Cao Bi-Song
1
, Jiang Li-Nan
1
(a) Structure of interdigital capacitor (b) equivalent circuit of interdigital capacitor.