Title :
New insight in operation principles and accurate design of fundamental and harmonic millimeter-wave oscillators
Author_Institution :
Hamburg Univ., Germany
Abstract :
A new time-domain simulation method for design and optimisation of millimeter-wave oscillators with Gunn and IMPATT devices is presented. The method allows load impedance functions of any complexity as calculated by mode-matching or other techniques to be used as input and is combined with an efficient and accurate hydrodynamic model for the active device. The operation principles of practical oscillator circuits are clarified. Results of this approach are compared with calculations based on impressed voltages and currents in order to determine the real-power limits of GaAs Gunn oscillators.<>
Keywords :
Gunn oscillators; IMPATT oscillators; circuit optimisation; harmonic oscillators (circuits); millimetre wave diodes; millimetre wave oscillators; time-domain analysis; time-domain synthesis; GaAs; Gunn devices; IMPATT devices; design method; fundamental MM-wave oscillators; harmonic MM-wave oscillators; hydrodynamic model; load impedance functions; millimeter-wave oscillators; operation principles; optimisation; real-power limits; time-domain simulation method; Design methodology; Design optimization; Gallium arsenide; Gunn devices; Hydrodynamics; Impedance; Millimeter wave circuits; Millimeter wave technology; Time domain analysis; Voltage-controlled oscillators;
Conference_Titel :
Microwave Symposium Digest, 1995., IEEE MTT-S International
Conference_Location :
Orlando, FL, USA
Print_ISBN :
0-7803-2581-8
DOI :
10.1109/MWSYM.1995.406028
