Small-Signal Analysis of Common-Gate Amplifier for RF Applications
Frederick Ray I. Gomez *
Department of New Product Development and Introduction, STMicroelectronics, Inc., 4027, Calamba City, Laguna, Philippines.
*Author to whom correspondence should be addressed.
Abstract
The paper presents a study of common-gate amplifier focused in small-signal analysis. Small-signal or frequency response of the amplifier determines the maximum frequency of operation and the effective bandwidth of the circuit. With the analysis, the circuit could be modeled and designed to achieve gain at the desired frequency of operation. Design tradeoffs are inevitable and are carefully considered in the analysis and design, for radio frequency (RF) applications.
Keywords: Amplifier, common-gate, small-signal analysis, voltage gain.