Title :
Fabrication and characterization of HTS antennas for satellite communication and security system
Author :
Ohshima, Shigetoshi ; Ehata, Katsufumi ; Ali, Md Idris ; Sato, Katsuaki
Author_Institution :
Fac. of Eng., Yamagata Univ., Yonezawa, Japan
Abstract :
We have examined the HTS receiving patch and patch array antennas for satellite broadcast and microwave security system. The HTS antennas were made by YBCO films prepared by plasma coupled sputtering system. The gain of the HTS patch antenna was approximately 3 dB higher than that of the copper patch antenna with the same geometry. We have constructed the mini-cryocooler cooling system for the HTS antennas. The directivity was not affected by the cooling system
Keywords :
barium compounds; direct broadcasting by satellite; high-temperature superconductors; microstrip antenna arrays; microstrip antennas; receiving antennas; security; sputtered coatings; superconducting microwave devices; superconducting thin films; yttrium compounds; HTS receiving antenna; YBCO thin film; YBaCuO; directivity; fabrication; microwave security system; mini-cryocooler cooling system; patch antenna; patch antenna array; plasma coupled sputtering; satellite broadcast communication system; Cooling; Fabrication; High temperature superconductors; Microwave antenna arrays; Patch antennas; Receiving antennas; Satellite antennas; Satellite broadcasting; Security; Yttrium barium copper oxide;
Conference_Titel :
Microwave Conference, 2000 Asia-Pacific
Conference_Location :
Sydney, NSW
Print_ISBN :
0-7803-6435-X
DOI :
10.1109/APMC.2000.925907
