ANALYSIS OF THE CHARACTERISTICS OF A PARAMETRIC AMPLIFIER USING FUNDAMENTAL OR SUBHARMONIC PUMPING,
Abstract
The results of this analysis are threefold. First of all, expressions for the principal characteristics, such as figure of merit, power gain and bandwidth were derived for parametric amplifiers using fundamental or subharmonic pumping, and a comparison between these amplifiers was made in terms of the characteristics derived. Secondly, quantitative relations between the amplifier characteristics and the pumping voltage and bias were determined by the method of analyzing harmonic components for the nonlinear capacitance of a semiconductor diode, and the stability requirement concerning the amplitude and frequency of pumping was established under the conditions of specified amplifier characteristics. Thirdly, the effective noise figure of these amplifiers was derived, and the conditions to minimize the effective noise figure in a design were discussed. In conclusion, a numerical example was given to illustrate the use of the results as a possible design procedure for the parametric amplifiers. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jan 28, 1965
- Accession Number
- AD0610647
Entities
People
- Ch'ing-hual Mao
- Kuang-ming Shen
- T'yen-ming Kao
Organizations
- National Air and Space Intelligence Center