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The design, development, and testing of an X-band 137-element passive reflect array capable of incorporating active devices such as transistor amplifiers is presented. In order to avoid grating lobes in the radiation pattern, the interelement spacing is minimized using dual-feed aperture-coupled patch antenna elements. Far-field radiation pattern results are presented and compared with the predicted radiation patterns.
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Robinson et al. (1999) studied this question.
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