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Photo-conductive element operative in the microwave region and a light- steerable antenna array incorporating the photo-conductive element
Photo-conductive element operative in the microwave region and a light- steerable antenna array incorporating the photo-conductive element
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机译:可在微波区域中工作的光电导元件和装有该光电导元件的光控天线阵列
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摘要
A steerable microwave antenna array having directional characteristics, which includes at least two antenna elements spaced from one another by a predetermined distance, each antenna element defining a controllable directional radiation pattern of a selectable intensity, and having an axis of maximum radiation intensity, and wherein the directional characteristics are derived from the super-position of the radiation patterns, the axes subtending a predetermined angle therebetween, the wherein the improvement provides for feed means connected to each antenna element, each including a photo-conductive element for a selected frequency in the microwave region, so that, upon the photoelectric elements being impinged with a selected intensity of light, the directional characteristics are changed in dependence of at least the difference in the intensity of light impinging on the photo- conductive elements, respectively.
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