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