Title :
Performance of a four-element Ka-band high-temperature superconducting microstrip antenna
Author :
Richard, M.A. ; Bhasin, K.B. ; Gilbert, C. ; Metzler, S. ; Koepf, G. ; Claspy, P.C.
Author_Institution :
Dept. of Electr. Eng., Case Western Reserve Univ., Cleveland, OH, USA
fDate :
4/1/1992 12:00:00 AM
Abstract :
Superconducting four-element microstrip array antennas operating at 30 GHz have been designed and fabricated on a lanthanum aluminate (LaAlO/sub 3/) substrates. The experimental performance of these thin-film Y-Ba-Cu-O superconducting antennas is compared with that of an identical antenna patterned with evaporated gold. Efficiency measurements of these antennas show an improvement of 2 dB at 70 K and as much as 3.5 dB at 40 K in the superconducting antenna over the gold antenna.<>
Keywords :
antenna radiation patterns; high-temperature superconductors; microstrip antennas; microwave antenna arrays; superconducting devices; superconducting thin films; 30 GHz; 40 to 70 K; Ka-band; LaAlO/sub 3/; YBaCuO-LaAlO/sub 3/; array antennas; four-element; high-temperature superconducting; microstrip antenna; thin-film; Antenna feeds; Circuits; Gold; High temperature superconductors; Microstrip antenna arrays; Microstrip antennas; Substrates; Superconducting filters; Superconducting microwave devices; Superconducting transmission lines;
Journal_Title :
Microwave and Guided Wave Letters, IEEE
