Title :
Experimental results on a scanned beam microstrip antenna array with a proximity coupled YBCO feed network
Author :
Herd, J.S. ; Hayes, D. ; Kenney, J.P. ; Poles, L.D. ; Herd, K.G. ; Lyons, W.G.
Author_Institution :
Rome Lab., Hanscom AFB, MA, USA
fDate :
3/1/1993 12:00:00 AM
Abstract :
The design, fabrication, and measurement of a scanned beam microstrip antenna array with a high-temperature superconducting YBCO feed network are described. A novel geometry is introduced which integrates the antenna array into a window on the vacuum enclosure of the cryocooler for maximum thermal and RF efficiency. The model considered includes surface wave and mutual coupling effects, which are of importance in large array applications. Experimental results demonstrate broadband radiation with expected gain values for broadside and 45-degree scan angles.<>
Keywords :
antenna arrays; barium compounds; high-temperature superconductors; proximity effect; superconducting microwave devices; yttrium compounds; RF efficiency; broadband radiation; cryocooler; design; fabrication; high temperature superconductor; mutual coupling effects; proximity coupled YBCO feed network; scanned beam microstrip antenna array; surface wave; vacuum enclosure; Antenna arrays; Antenna feeds; Antenna measurements; Fabrication; Geometrical optics; High temperature superconductors; Microstrip antenna arrays; Microstrip antennas; Radio frequency; Yttrium barium copper oxide;
Journal_Title :
Applied Superconductivity, IEEE Transactions on
