Oscillator provides a cost-effective source for microwave power while generating low-phase-noise

Fairview Microwave has released a waveguide Gunn oscillator that provides a cost-effective source for microwave power with excellent frequency and power stability while generating low-phase-noise. Typical applications include transmit and receive oscillators for radio communications, local oscillator source that can be multiplied for higher mm-wave frequency test and measurement, military and commercial radar sources, police radar, Doppler sensors and security screening. The company’s model FMWGN1001 is a K-Band waveguide Gunn oscillator module that generates a center frequency of 24.125GHz and can be tuned up to +/-1GHz via a self-locking tuning screw. Because of the extremely high external Q and temperature compensation mechanism, this design exhibits higher frequency and power stability, lower phase-noise and higher anti-load-pulling characteristics. Performance specs include phase noise of -95dBc/Hz typical at 100KHz offset, and frequency stability of -0.4MHz/C maximum. The output power of this oscillator is +10dBm minimum with power stability of -0.04dB/C maximum. Bias supply is +5VDC at 200mA typical with an operating temperature range of -40C to +85C. The design of this oscillator from Fairview utilizes high performance components in a rugged and compact aluminium package with a precision machined internal cavity design. The output frequency port supports a WR-42 UG-595/U waveguide flange interface. “Our FMWGN1001 Gunn oscillator module offers designers a cost-effective and high performing K-Band waveguide frequency source solution for use with sensitive communications, radar and test and measurement applications,” explains Randy Leenerts, senior RF engineer at Fairview Microwave.