| 摘要 |
<p>A microwave cavity resonator, such as the circular electric mode resonator of a coaxial magnetron, is electronically tuned by coupling an electronically tunable array of reactive loading elements to the resonator. Tuning means, such as PIN diodes or ferrite tuning members, are associated with respective ones of the reactive loading elements for varying the reactive loading effect of respective ones of said reactive loading elements on the composite resonator for tuning the resonant frequency of the composite resonator in accordance with the reactive loading effect of the elements. In a preferred embodiment, the reactive loading structure is preferably disposed inside of the resonator. In the case of a circular electric mode resonator, the individual reactive loading elements are preferably energized in a symmetrical manner relative to the resonator to avoid converting energy from the circular electric mode to certain other unwanted lower Q modes.</p> |
