Title :
Optoelectronic mixing in MMIC W-band self-oscillating mixer
Author :
Roberts, M.J. ; Bourhill, N. ; Iezekiel, S. ; Steenson, D.P. ; Snowden, C.M.
Author_Institution :
Sch. of Electron. & Electr. Eng., Leeds Univ., UK
fDate :
4/30/1998 12:00:00 AM
Abstract :
A novel 77 GHz MMIC self-oscillating mixer for wireless systems has been designed and used in optoelectronic up-converting applications. The mixer uses a single pseudomorphic high-electron mobility transistor (pHEMT) to achieve photodetection, oscillation, doubling and mixing. A 100 MHz RF signal (modulated onto an 850 nm laser) is photodetected by the pHEMT and is mixed to W-band using the second harmonic of the self-oscillation at 38 GHz. A conversion gain (from electrical baseband to electrical carrier) of 3.6 dB has been achieved
Keywords :
HEMT integrated circuits; MMIC mixers; cellular radio; field effect MIMIC; integrated optoelectronics; optical receivers; photodetectors; 100 MHz; 3.6 dB; 38 GHz; 77 GHz; 850 nm; PHEMT; W-band self-oscillating mixer; high-electron mobility transistor; laser; optoelectronic mixing; photodetection; pseudomorphic HEMT; second harmonic; upconverting applications; wireless systems;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19980671
