Title :
mm-wave resonant and nonresonant structures with high-Tc superconductors
Author_Institution :
Inst. of Radiophys. & Electron., Acad. of Sci., Kharkov, Ukraine
Abstract :
Data on studying electrodynamic structures which, in the author´s opinion, are the most suitable for impedance properties measurement of HTS materials in mm wavelength range, are presented. Two versions of quasi-optical dielectric resonators (QDR) with HTS samples, perturbed resonator and two-conducting end-plates resonator, are considered. The examples of their usage are given and other versions are proposed. Their application aspects are discussed. The results of reflectivity study of HTS thin-film-dielectric substrate structures at grazing incident angles show a new approach to investigation of these materials Experimental data are obtained using sapphire QDR and rectangular waveguide E-structures with YBa2Cu3O7-x thin films and melt textured samples in 8 mm waveband at T=77-300 K
Keywords :
barium compounds; dielectric resonators; high-temperature superconductors; millimetre wave devices; rectangular waveguides; superconducting microwave devices; yttrium compounds; 77 to 300 K; 8 mm; HTS materials; QDR; YBa2Cu3O7-x; electrodynamic structures; grazing incident angles; impedance properties measurement; melt textured samples; mm wave nonresonant structures; mm wave resonant structures; perturbed resonator; quasi-optical dielectric resonators; rectangular waveguide E-structures; reflectivity study; thin-film-dielectric substrate structures; two-conducting end-plates resonator; Dielectric materials; Dielectric measurements; Dielectric substrates; Electrodynamics; High temperature superconductors; Impedance measurement; Rectangular waveguides; Reflectivity; Resonance; Wavelength measurement;
Conference_Titel :
Physics and Engineering of Millimeter and Sub-Millimeter Waves, 2001. The Fourth International Kharkov Symposium on
Conference_Location :
Kharkov
Print_ISBN :
0-7803-6473-2
DOI :
10.1109/MSMW.2001.946747
