| 摘要 |
A dielectric resonator feed back stabilizer comprising a circulator, 3-dB, 90 DEG hybrid dielectric resonator, and isolator. The circulator provides an input electromagnetic signal from a source to the hybrid, which splits the input signal into two outputs with 90 DEG relative phase difference. One hybrid output is to the load and the other is to a dielectric resonator with high Q. The dielectric resonator reflects a portion of the input signal corresponding to the dielectric resonator operating frequency back to the hybrid which splits the reflected signal into two outputs 90 degree relative phase difference. The first signal reflected back through the hybrid, 180 degrees out of phase with the hybrid input signal from the circulator, is cancelled by superposition with the hybrid input signal. The second reflected signal travels through an isolator to the circulator injection locks the source input signal.
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