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Study of Advanced Antenna Techniques for Aerospace Vehicle Doppler Velocity Sensors

机译:航天飞行器多普勒速度传感器先进天线技术研究

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A four-port, dual-mode antenna that generates four symmetrically oriented beams about its normal was designed and built. Approximately 30-db isolation between ports was measured with this two-dimensional slot array, and overall efficiency of the antenna was 71 percent. Agreement between theory and experiment was good for all parameters. (Author)

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