Title :
Analysis of harmonic termination impedance on RF/microwave multiplier efficiency
Author :
Thomas, Donald G., Jr. ; Branner, G.R.
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., California Univ., Davis, CA, USA
Abstract :
Harmonic terminating impedances have been shown to drastically effect the performance of RF/microwave frequency multipliers. In the literature, various apparently differing conclusions have been obtained on the proper terminating impedances for active multipliers to achieve optimum performance. This paper presents a rigorous and concise approach leading to the determination of harmonic terminating impedances for optimum efficiency. The approach is illustrated in HEMT frequency multipliers in S and C bands. Results have been obtained which have conversion gains of 6 dB with harmonic suppression of greater than 25 dBc utilizing this approach
Keywords :
HEMT circuits; frequency multipliers; harmonics; microwave circuits; microwave frequency convertors; 6 dB; C band; HEMT frequency multipliers; RF multiplier; S band; active multipliers; conversion gains; harmonic suppression; harmonic termination impedance; microwave multiplier; Capacitance; Circuit testing; Frequency measurement; HEMTs; Harmonic analysis; Harmonics suppression; Impedance; Power measurement; Radio frequency; Voltage;
Conference_Titel :
Circuits and Systems, 1996., IEEE 39th Midwest symposium on
Conference_Location :
Ames, IA
Print_ISBN :
0-7803-3636-4
DOI :
10.1109/MWSCAS.1996.593181
