Title :
A low-noise 86-90 GHz uniplanar Schottky-receiver
Author :
Gauthier, G. ; Budka, T.P. ; Ali-Ahmad, W.Y. ; Filipovic, D.F. ; Rebeiz, G.M.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Michigan Univ., Ann Arbor, MI, USA
Abstract :
A millimeter-wave Schottky receiver based on a coplanar-waveguide (CPW)-fed double-slot antenna is described. This antenna is backed by an extended hemispherical silicon substrate lens. The design is uniplanar and requires no via holes or backing ground-plane. The receiver results in a 6.9-dB measured double-sideband (DSB) conversion loss at 86-90 GHz and a DSB noise temperature at 1200 K. The DSB conversion loss drops to 5.7 dB when the residual matching-cap reflection loss (0.9 dB) and the IF (intermediate frequency) reflection loss (0.3 dB) are calibrated out of the measurements. The CPW-fed double-slot antenna results in a low-cost millimeter-wave uniplanar receiver with a performance that is within 3 dB of the best waveguide mixers at millimeter-wave frequencies.<>
Keywords :
Schottky-barrier diodes; receivers; solid-state microwave circuits; waveguide antennas; waveguide components; 1200 K; 5.7 dB; 6.9 dB; 86 to 90 GHz; DSB conversion loss; DSB noise temperature; IF reflection loss; Si; coplanar-waveguide; double-slot antenna; millimeter-wave Schottky receiver; residual matching-cap reflection loss; uniplanar Schottky-receiver; waveguide mixers; Acoustic reflection; Antenna measurements; Frequency measurement; Lenses; Loss measurement; Millimeter wave measurements; Noise measurement; Receiving antennas; Silicon; Temperature;
Conference_Titel :
Microwave Symposium Digest, 1993., IEEE MTT-S International
Conference_Location :
Atlanta, GA, USA
Print_ISBN :
0-7803-1209-0
DOI :
10.1109/MWSYM.1993.276812
