Title :
A 75 GHz to 115 GHz quasi-optical amplifier
Author :
Budka, T.P. ; Trippe, M.W. ; Weinreb, S. ; Rebeiz, G.
Author_Institution :
Michigan Univ., Ann Arbor, MI, USA
fDate :
June 28 1993-July 2 1993
Abstract :
A wideband quasi-optical amplifier employing two pyramidal back-to-back horns has been developed. Using a four-stage W-band low noise amplifier (LNA), the quasi-optical amplifier gives a system gain greater than 11 dB from 86 GHz up to 113 GHz without any low-frequency oscillations. A peak system gain of 15.5 dB was measured at 102 GHz, and the measured noise figure of the system is 7.4 dB at 94 GHz. Unlike other quasi-optical amplifiers, this structure maintains the same polarization of the received and transmitted signal while providing good isolation. The absence of tuning polarizers allow a wider operating bandwidth for this design.<>
Keywords :
gain measurement; horn antennas; millimetre wave amplifiers; millimetre wave integrated circuits; wideband amplifiers; 15.5 dB; 7.4 dB; 75 to 115 GHz; W-band low noise amplifier; design; integrated horn antenna; isolation; noise figure; operating bandwidth; polarization; pyramidal back-to-back horns; structure; system gain; wideband quasi-optical amplifier; Apertures; Broadband amplifiers; Frequency; Gain measurement; Laboratories; Low-noise amplifiers; Probes; Semiconductor device measurement; Space technology; Waveguide transitions;
Conference_Titel :
Antennas and Propagation Society International Symposium, 1993. AP-S. Digest
Conference_Location :
Ann Arbor, MI, USA
Print_ISBN :
0-7803-1246-5
DOI :
10.1109/APS.1993.385280
