Title :
A 220 GHz (G-Band) Microstrip MMIC Single-Ended Resistive Mixer
Author :
Gunnarsson, Sten E. ; Wadefalk, Niklas ; Angelov, Iltcho ; Zirath, Herbert ; Kallfass, Ingmar ; Leuther, Arnulf
Author_Institution :
Chalmers Univ. of Technol., Goteborg
fDate :
3/1/2008 12:00:00 AM
Abstract :
This letter presents the design and characterization of a 220 GHz microstrip monolithic microwave integrated circuit single-ended resistive mixer in a 0.1 GaAs mHEMT technology. A conversion loss as low as 8.7 dB is obtained, limited by the available local oscillator (LO) power (1.5 dBm) in the measurement setup. The radio frequency (RF) bandwidth is also limited by the measurement setup, but the mixer demonstrates a flat response over the measured 200 to 220 GHz frequency range. Furthermore, measured intermediate frequency bandwidth, 1-dB input compression point, LO-to-RF isolation, and reflection coefficients are presented and discussed.
Keywords :
HEMT integrated circuits; III-V semiconductors; MMIC mixers; MMIC oscillators; gallium arsenide; microstrip circuits; GaAs; conversion loss; frequency 220 GHz; local oscillator; mHEMT technology; microstrip MMIC single-ended resistive mixer; monolithic microwave integrated circuit; radio frequency bandwidth; reflection coefficients; 220 GHz; G-band; GaAs; imaging; mHEMT; microstrip; millimeter-wave; monolithic microwave integrated circuit (MMIC); single-ended resistive mixer;
Journal_Title :
Microwave and Wireless Components Letters, IEEE
DOI :
10.1109/LMWC.2008.916819
