Title :
Optimization of active microwave frequency multiplier performance utilizing harmonic terminating impedances
Author :
Thomas, D., Jr ; Branner, G.R.
Author_Institution :
Dept. of Electr. & Comput. Eng., California Univ., Davis, CA, USA
Abstract :
A primary factor affecting optimum performance of microwave multipliers employing nonlinear devices is the proper termination of the fundamental and other harmonic frequency components. The objective of this paper is to present a quantitative analysis leading to the assessment of optimum terminating impedances in the design of active frequency multipliers. The analysis includes computer modelled HEMT data and supporting measured data for corresponding circuit realizations. An experimental design reveals an improvement in multiplier gain of 77% over the conventional approach.
Keywords :
HEMT circuits; circuit optimisation; equivalent circuits; frequency multipliers; microwave frequency convertors; active microwave frequency multiplier; computer modelled HEMT data; frequency multiplier performance; harmonic frequency components; harmonic terminating impedances; nonlinear devices; optimization; Capacitance; Circuit simulation; FETs; HEMTs; Impedance; Microwave devices; Radio frequency; Termination of employment; Transconductance; Voltage;
Conference_Titel :
Microwave Symposium Digest, 1996., IEEE MTT-S International
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-3246-6
DOI :
10.1109/MWSYM.1996.511026
