Title :
A Broadband, Low Noise, Integrated 340 GHz Schottky Diode Receiver
Author :
Sobis, Peter J. ; Wadefalk, Niklas ; Emrich, Anders ; Stake, Jan
Author_Institution :
Omnisys Instrum. AB, Goteborg, Sweden
fDate :
7/1/2012 12:00:00 AM
Abstract :
A 340 GHz subharmonic Schottky diode mixer and a multioctave (3-16 GHz) custom low noise amplifier (LNA) have been integrated to form a compact receiver front-end module, exhibiting ultra low noise with an exceptional flat response and broadband instantaneous frequency coverage. At room temperature, a receiver noise temperature of 870 K is measured at an LO drive of 1.2 mW at 170 GHz. The total dc power consumption of the LNA is below 120 mW. Measurements are in good agreement with simulations taking the mixer and LNA mismatch interaction into account.
Keywords :
Schottky diode mixers; low noise amplifiers; submillimetre wave amplifiers; submillimetre wave diodes; submillimetre wave receivers; broadband Schottky diode receiver; compact receiver front-end module; frequency 170 GHz; frequency 340 GHz; integrated Schottky diode receiver; low noise Schottky diode receiver; multioctave custom LNA; multioctave custom low noise amplifier; power 1.2 mW; subharmonic Schottky diode mixer; temperature 293 K to 298 K; temperature 870 K; Impedance; Mixers; Noise; Noise measurement; Receivers; Schottky diodes; Temperature measurement; Heterodyne receivers; Schottky diodes; low noise amplifiers (LNAs); radiometers; subharmonic mixers; submillimeter wave technology;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2012.2202280
