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等离子体天线是一种在军事上具有很好应用潜力的新型天线。由于等离子体的高通特性,一幅U/V波段等离子体天线即使在工作状态也不会反射雷达波。而且等离子体天线的宽带特性也非常适用于采用跳频、扩频体制的主动隐身电子对抗设备。由于等离子体天线具有可重构性,采用同一幅天线/天线阵可以在不同频段、方向图下工作。中国科学院国家空间科学中心是国内领先的等离子体天线研究单位,近年来逐步解决了等离子体天线在增益、匹配、噪声等方面的技术瓶颈,整个系统的体积、重量、功耗也得以降低到合理的水平,为等离子体技术的实用化打下了很好的基础。本文主要介绍中科院空间中心在等离子体天线技术上的主要进展、研究方向和一些存在的问题。
Plasma antennas are a new type of antenna that has great military potential. Due to the high pass characteristics of the plasma, a U / V band plasma antenna does not reflect radar waves even when in operation. And the wideband nature of the plasma antenna is also very suitable for active stealth electronic countermeasures using frequency hopping, spread spectrum system. Due to the reconfigurability of the plasma antenna, the same antenna / antenna array can work in different frequency bands and directional patterns. The National Space Science Center of the Chinese Academy of Sciences (CASS) is a leading plasma antenna research institute in China. In recent years, it has gradually solved the technical bottlenecks in gain, matching and noise of plasma antennas. The volume, weight and power consumption of the whole system have also been reduced to a reasonable level The level of plasma technology for the practical lay a good foundation. This article mainly introduces the main progresses, research directions and some existing problems of the plasma antenna technology of CAS Space Center.