Title :
Subharmonically injection locked 94 GHz MMIC HEMT oscillator using coplanar technology
Author :
Kudszus, S. ; Haydl, W.H. ; Neumann, M. ; Bangert, A. ; Hulsmann, A.
Author_Institution :
Fraunhofer Inst. for Appl. Solid State Phys., Freiburg, Germany
Abstract :
A coplanar subharmonically injection locked VCO for 94 GHz with a tuning range of 4.5 GHz was developed, using 0.15 /spl mu/m AlGaAs-InGaAs-GaAs PM-HEMTs. A phase noise of -71 dBc/Hz at 1 MHz offset from the carrier was measured for the unlocked VCO. Using 3/sup rd/ subharmonic injection locking, a phase noise of -106 dBc/Hz at 1 MHz offset (-91 dBc/Hz at 100 KHz offset) for the locked VCO with a locking range of 1 GHz was achieved.
Keywords :
HEMT integrated circuits; MMIC oscillators; circuit tuning; coplanar waveguides; field effect MIMIC; injection locked oscillators; millimetre wave oscillators; voltage-controlled oscillators; 0.15 micron; 94 GHz; AlGaAs-InGaAs-GaAs; CPW; EHF; MIMIC HEMT oscillator; MM-wave IC; PHEMT process; W-band; coplanar technology; injection locked VCO; phase noise; pseudomorphic HEMTs; subharmonically injection locked oscillator; tuning range; Distributed parameter circuits; Frequency; HEMTs; Injection-locked oscillators; MMICs; Millimeter wave radar; Millimeter wave technology; Phase noise; Radiofrequency amplifiers; Voltage-controlled oscillators;
Conference_Titel :
Microwave Symposium Digest, 1998 IEEE MTT-S International
Conference_Location :
Baltimore, MD, USA
Print_ISBN :
0-7803-4471-5
DOI :
10.1109/MWSYM.1998.700679
