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Measuring satellite antennas with a compact hologram test range

机译:使用紧凑的全息图测试范围测量卫星天线

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Testing of satellite antennas at high millimeter and submillimeter wavelengths has some specific problems not encountered at lower frequencies. The atmospheric attenuation due to water and oxygen molecule resonances at certain frequency bands can be substantial. Therefore, conventional far-field test methods for electrically large antennas are ruled out by the required far-field distance of kilometers or even tens of kilometers. However, the compact antenna test range (CATR) makes such far-field tests possible within an indoor chamber having a controlled atmosphere. The application and ongoing development of a CATR based on a hologram as the focusing element are outlined
机译:在高毫米和亚毫米波长下测试卫星天线具有一些特定问题,这些问题在较低频率下不会遇到。由于水和氧分子在某些频带上的共振而导致的大气衰减可能很大。因此,用于电大天线的常规远场测试方法被所需的千米甚至几十公里的远场距离所排除。但是,紧凑的天线测试范围(CATR)使得在具有受控气氛的室内室内进行此类远场测试成为可能。概述了基于全息图作为聚焦元件的CATR的应用和正在进行的开发

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