An analytic method of microwave bipolar single-frequency and voltage-controlled oscillator design

An analytic method of microwave bipolar oscillator design, allowing one to define explicit expressions for optimum values of feedback elements and loa d through bipolar transistor Z-parameters, is developed. A negative resista nce concept is utilized to design series feedback microwave bipolar oscilla tor with optimized feedback elements and maximum output power in terms of t he transistor impedance parameters. The design of the wideband common-base bipolar voltage controlled oscillators (VCOs) is also presented. Numerical and experimental results verify the validity of the design methods describe d. (C) 1999 John Wiley & Sons, Inc.