Abstract: This paper discribeg the design and experimental results of fullheight waveguide of electronically tunable X-band microwave solid state oscillators. The design equations are derived on the basis of coupled network of waveguide-post structure by utilizing the dyadic Green's function of a rectangular waveguide.
An experimental X-band oscillator hag been built, with continuously tunable bandwidth of 1000 MHz and output power of 100 mW. Its ripplea are within 1dB without jump.
This oscillator has been successfully used in solid state FM-CW radar system, microwave scatterometer, FM-jamming stations and frequency-agile local oscillator.