A 200 GHz planar diode subharmonically pumped waveguide mixer with state-of-the-art performance

Author

Siegel, P.H. ; Dengler, R.J. ; Mehdi, I. ; Bishop, W.L. ; Crowe, T.W.

Author_Institution

Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA

fYear

1992

fDate

1-5 June 1992

Firstpage

595

Abstract

The authors present recent performance data for a 200-GHz subharmonically pumped waveguide mixer using an antiparallel pair of planar air bridge type GaAs Schottky barrier diodes. The measured mixer noise and conversion loss were below those of the best reported whisker contacted or planar diode mixers using the subharmonic pump configuration. In addition, the required local oscillator power was as low as 3 mW for the unbiased diode pair, and significant local oscillator noise suppression was observed. The waveguide design was a prototype for 640 GHz and used a split-block rectangular waveguide with a 2:1 width to height ratio throughout.<>

Keywords

III-V semiconductors; Schottky-barrier diodes; gallium arsenide; mixers (circuits); solid-state microwave circuits; submillimetre wave devices; waveguide components; 200 GHz; 3 mW; 640 GHz; EHF; GaAs; MM-wave type; Schottky barrier diodes; THF; air bridge type; antiparallel pair; conversion loss; local oscillator power; mixer noise; oscillator noise suppression; performance data; planar diode; split-block rectangular waveguide; subharmonically pumped waveguide mixer; Acoustical engineering; Bridges; Gallium arsenide; Local oscillators; Loss measurement; Noise measurement; Planar waveguides; Rectangular waveguides; Schottky barriers; Schottky diodes;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1992., IEEE MTT-S International

Conference_Location

Albuquerque, NM, USA

ISSN

0149-645X

Print_ISBN

0-7803-0611-2

Type

conf

DOI

10.1109/MWSYM.1992.188052

Filename

188052