THEORY AND DESIGN OF WIDE BAND PARAMETRIC CONVERTERS
Abstract
Existing works on parametric amplifiers deal mostly with the physical aspects of the device, the analysis and design of simple coupling circuits. The parametric converter is studied from the circuit theory point of view. The wellknown small signal approach is used and the nonlinear capacitance is approximated by a periodically varying capacitance. A general circuit configuration is considered where the variable capacitance is imbedded in an arbitrary passive network. Formula for the power gain is derived in terms of the variable capacitance and appropriate impedances of the passive imbedding network. From the general formula, the maximum gain-bandwidth product is then studied by utilizing Bode's familiar relationships. Research is concerned with only the noninverting type parametric converter. Synthesis procedures for coupling networks to approach the optimum gain bandwidth are presented. A design example indicates that even with the above assumption, a converter with 70% bandwidth can be obtained to achieve a power gain within 1/2 db from the optimum. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Jun 01, 1961
- Accession Number
- AD0262239
Entities
People
- E.s. Kuh
Organizations
- University of California, Berkeley