Abstract
AbstractA Gunn oscillator is developed using a nonradiative dielectric waveguide which is employed in millimeter‐wave integrated circuits. First, the structure and operation mechanism of the oscillator are described. The test of the oscillating properties shows the possibility of determining its frequency, and the maximum output power can be compared to that of the waveguide oscillators. Then a self‐injection locked Gunn oscillator using a dielectric resonator is developed for frequency stability and noise reduction. It is found that a TEQ2δ mode high‐dielectric ceramic resonator gives the best results when installed, and the oscillator was proved to be practical by measured performances which show the pushing figure and temperature coefficient as 1 MHz/V and ‐5 ppm/°C, respectively.
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