Narrow-band YBCO superconducting parallel-coupled coplanar waveguide band-pass filters at 10 GHz

High-Tc-superconducting coplanar-waveguide (CPW) three-pole, four-pole, and five-pole bandpass filters fabricated from in situ sputter-deposited YBa2Cu3O7-x thin-films on LaAlO3 substrates with dimensions 10 mm*25 mm are presented. The design is based on the evaluation of CPW test chips integrating different resonators and transmission line structures. The measured data were fed into a CAD (computer-aided design) program using general transmission line elements instead of CPW elements. Both YBCO and gold versions were constructed and mounted in gold-plated brass test fixtures. At liquid nitrogen temperature (77 K), the filters were characterized by center frequencies at 10 GHz and bandwidths smaller than 1.3%. Total insertion loss and out-of-band rejection values of the complete packaged devices were better than 2.2 dB and 30 dB, respectively.     «

High-Tc-superconducting coplanar-waveguide (CPW) three-pole, four-pole, and five-pole bandpass filters fabricated from in situ sputter-deposited YBa2Cu3O7-x thin-films on LaAlO3 substrates with dimensions 10 mm*25 mm are presented. The design is based on the evaluation of CPW test chips integrating different resonators and transmission line structures. The measured data were fed into a CAD (computer-aided design) program using general transmission line elements instead of CPW elements. Both YBCO...     »

superconducting microwave devices, resonators, microwave filters, band-pass filters, SHF, CPW, 77 K, barium compounds, high-temperature superconductors, sputtered coatings, superconducting thin films, yttrium compounds, 10 GHz, 2.2 dB, Au, bandpass filters, CAD program, computer-aided design, coplanar waveguide, five-pole, four-pole, HTSC film, LaAlO3 substrates, liquid nitrogen temperature, narrowband type, parallel-coupled, passive filters, sputter deposited thin films, strip line components, three-pole, transmission line structures, YBa2Cu3O7-LaAlO3     «

superconducting microwave devices, resonators, microwave filters, band-pass filters, SHF, CPW, 77 K, barium compounds, high-temperature superconductors, sputtered coatings, superconducting thin films, yttrium compounds, 10 GHz, 2.2 dB, Au, bandpass filters, CAD program, computer-aided design, coplanar waveguide, five-pole, four-pole, HTSC film, LaAlO3 substrates, liquid nitrogen temperature, narrowband type, parallel-coupled, passive filters, sputter deposited thin films, strip line components,...     »