Title :
A Ka-band electromagnetically-coupled superconducting microstrip antenna
Author :
Richard, M.A. ; Bhasin, K.B. ; Claspy, P.C.
Author_Institution :
Dept. of Electr. Eng. & Appl. Phys., Case Western Reserve Univ., Cleveland, OH, USA
Abstract :
Summary form only given. One of the drawbacks of using HTS (high-temperature superconductor) for microstrip antennas, is the fact that HTS is unavailable on low-permittivity substrates. The use of a high-permittivity substrate for microstrip antennas leads to undesirable characteristics such as narrow bandwidth and reduced radiation efficiency due to surface wave generation. To overcome this difficulty and effectively use HTS in microstrip antenna systems, a two-layered electromagnetically coupled microstrip patch has been investigated. This configuration allows the patch to be patterned with gold on a lower permittivity substrate while still using HTS for the feed network.<>
Keywords :
high-temperature superconductors; microstrip antennas; microwave antenna arrays; superconducting microwave devices; Au; HTS; Ka-band; bandwidth; electromagnetically-coupled superconducting microstrip antenna; feed network; high-permittivity substrate; high-temperature superconductor; radiation efficiency; surface wave generation; two-layered microstrip patch; Antenna feeds; Ceramics; Gold; High temperature superconductors; Microstrip antennas; Microwave antennas; Microwave generation; Physics; Superconducting filters; Superconducting microwave devices;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE
Conference_Location :
Chicago, IL, USA
Print_ISBN :
0-7803-0730-5
DOI :
10.1109/APS.1992.221787
