Open AccessContributions of the surface resistance of high-temperature superconducting films to the insertion loss of the microwave filters
Author(s) -
Hongcheng Li,
Ruilan Wang,
Bin Wei,
Dewen Zheng
Publication year - 2005
Publication title -
wuli xuebao
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.54.359
Subject(s) - insertion loss , microwave , materials science , sheet resistance , filter (signal processing) , high temperature superconductivity , optoelectronics , superconductivity , thin film , electronic circuit , high resistance , condensed matter physics , composite material , electrical engineering , telecommunications , computer science , physics , nanotechnology , layer (electronics) , engineering , agronomy , biology
In this paper it is shown that the influence of the surface resistance of the high_temperature superconductors (HTS) on the insertion losses of the microwave filters with various poles and central frequencies was analyzed using simulat ion software for the electrical circuits. It is shown that HTS thick films or HT S thin films with relatively high surface resistance can be used to construct lo w insertion loss microwave filter with a few poles or with low central frequency . But high_quality epitaxial thin films must be used to construct low loss microwave filter with many poles (more than 8-poles) or with high central frequency (higher than 6GHz).