DocumentCode :
2788159
Title :
Submillimeter-wave antennas an thin membranes
Author :
Rebeiz, Gabriel M. ; Regehr, Wade G. ; Rutledge, David B. ; Savage, Richard L. ; Luhmann, Neville C., Jr.
Author_Institution :
California Institute of Technology, Pasadena, CA, USA
Volume :
25
fYear :
1987
fDate :
31929
Firstpage :
1194
Lastpage :
1197
Abstract :
Submillimeter-wave antennas with bismuth microbolometer detectors have been fabricated on 1- 
m thick silicon-oxynitride membranes. This approach results in better patterns than previous lens-coupled integrated circuit antennas, and eliminates the dielectric loss associated with the substrate lens. Measurements on a wideband log-periodic antenna at 700 GHz, 380 GHz and 167 GHz, and on a 700 GHz log-periodic imaging array, show no sidelobee and a 3-dB beamwidth between 
and 
. Also, the effective area can be increased by 5 dB by the use of a back-shorting mirror. Possible application areas are superconducting tunnel junction receivers for radio astronomy and imaging arrays for plasma diagnostics.
m thick silicon-oxynitride membranes. This approach results in better patterns than previous lens-coupled integrated circuit antennas, and eliminates the dielectric loss associated with the substrate lens. Measurements on a wideband log-periodic antenna at 700 GHz, 380 GHz and 167 GHz, and on a 700 GHz log-periodic imaging array, show no sidelobee and a 3-dB beamwidth between and . Also, the effective area can be increased by 5 dB by the use of a back-shorting mirror. Possible application areas are superconducting tunnel junction receivers for radio astronomy and imaging arrays for plasma diagnostics.Keywords :
Antenna measurements; Biomembranes; Bismuth; Detectors; Dielectric losses; Dielectric measurements; Dielectric substrates; Extraterrestrial measurements; Lenses; Submillimeter wave integrated circuits;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Antennas and Propagation Society International Symposium, 1987
Type :
conf
DOI :
10.1109/APS.1987.1149833
Filename :
1149833
Link To Document :
