Title :
A broadband 440–590 GHz receiver
Author :
Hesler, Jeffrey L. ; Hui, Kai ; Crowe, Thomas W.
Author_Institution :
Virginia Diodes Inc., Charlottesville, VA, USA
Abstract :
The development and testing of a broadband 440-590 GHz receiver for use with THz radiometers is presented. The receiver is based on a broadband subharmonic mixer developed at VDI, which has a mixer noise temperature ranging from 1500-2500 K (DSB) over the full waveguide band from 400-600 GHz, while requiring an LO power of only 2-3 mW. The local oscillator consists of a JPL WR-10 broadband amplifier driving a VDI tripler. Excellent performance was achieved without any tuning.
Keywords :
radiometers; submillimetre wave mixers; submillimetre wave oscillators; terahertz wave devices; wideband amplifiers; DSB; JPL WR-10 broadband amplifier; LO power; THz radiometer; VDI tripler; broadband receiver; broadband subharmonic mixer; frequency 400 GHz to 600 GHz; local oscillator; mixer noise temperature; power 2 mW to 3 mW; temperature 1500 K to 2500 K; Broadband amplifiers; Mixers; Noise; Receivers; Schottky diodes; Temperature measurement;
Conference_Titel :
Infrared, Millimeter and Terahertz Waves (IRMMW-THz), 2011 36th International Conference on
Conference_Location :
Houston, TX
Print_ISBN :
978-1-4577-0510-6
Electronic_ISBN :
2162-2027
DOI :
10.1109/irmmw-THz.2011.6105052
