GAIN-BANDWIDTH LIMITATIONS AND OPTIMUM DESIGN OF WIDE-BAND PARAMETRIC RC CONVERTERS.
Abstract
This report discusses the gain-bandwidth limitations and optimum design of noninverting converters comprised of a parametric conductance in parallel with a parametric capacitance pumped in time quadrature. Useful properties of such converters are discussed in an earlier report. The circuit is of the circulator type, and the desired passband is about the isolation center. An LC equalizer is inserted between the converter and the circulator, and the design is based on the optimization of this equalizer. Two types of fundamental limitations of gain and bandwidth are discussed: those due to the converter proper and independent of the associated circuitry, and those due to the LC character of the equalizer. An approximation is made to the normally nonpositive-real admittances of the converter which allows the use of the theory of matching. The synthesis is performed on a lowpass circuit with a lowpass to double-bandpass transformation completing the design. An illustrative example considers a converter with a bandwidth of about 120 percent of center frequency. (Author)
Document Details
- Document Type
- Technical Report
- Publication Date
- Oct 01, 1964
- Accession Number
- AD0610490
Entities
People
- Jacob Klapper
- Mohammed S. Ghausi
Organizations
- New York University