Title :
Cross-coupled HTS microstrip open-loop resonator filter on LAO substrate
Author :
Jia-Sheng Hong ; Lancaster, M.J. ; Mage, J.-C.
Author_Institution :
Dept. of Electron. & Electr. Eng., Birmingham Univ., UK
Abstract :
This paper presents the recent investigation of implementing an 8-pole cross-coupled high temperature superconductor (HTS) microstrip open-loop resonator filter on an LaAlO/sub 3/ substrate for mobile communication applications. The filter was designed to have a pass band from 1770 to 1785 MHz, and fabricated using double sided YBCO thin film on a wafer of size 0.5/spl times/23.5/spl times/39 mm. A very encouraging performance has been achieved. The influence of unwanted cross couplings on the filter response, which is of importance for further development is addressed.
Keywords :
barium compounds; high-temperature superconductors; microstrip filters; resonator filters; superconducting filters; superconducting microwave devices; superconducting thin films; yttrium compounds; 1770 to 1785 MHz; HTS microstrip open-loop resonator filter; LAO substrate; LaAlO/sub 3/; YBCO thin film; YBaCuO; cross-coupling; high temperature superconductor; mobile communication; Band pass filters; High temperature superconductors; Microstrip filters; Microstrip resonators; Mobile communication; Resonator filters; Substrates; Superconducting filters; Superconducting thin films; Yttrium barium copper oxide;
Conference_Titel :
Microwave Symposium Digest, 1999 IEEE MTT-S International
Conference_Location :
Anaheim, CA, USA
Print_ISBN :
0-7803-5135-5
DOI :
10.1109/MWSYM.1999.780254
