The MU radar with an active phased array system: 1. Antenna and power amplifiers
The MU radar with an active phased array system: 1. Antenna and power amplifiers
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具有有源相控阵系统的MU雷达：1.天线和功率放大器
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
T. Makihira
中科院分区：
文献类型：
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作者：
S. Fukao;Toru Sato;T. Tsuda;S. Kato;K. Wakasugi;T. Makihira
日本的中高层大气雷达是一个46.5 MHz脉冲调制单基地多普勒雷达，采用有源相控阵系统。标称束宽为3.6°，峰值辐射功率为1 MW，最大平均功率为50 kW。该系统由475个交叉的三子元八木天线和同等数量的固态功率放大器（发射-接收模块）组成。每个八木天线由一个峰值输出功率为2.4千瓦的发射器-接收器模块驱动。这种系统配置能够实现非常快速和几乎连续的波束转向，这是其他中间层-平流层-对流层雷达所没有实现的。此外，各种复杂的操作是可行的，通过划分成几个独立的子阵列的天线阵列。本文简要介绍了该系统，特别是其天线和功率放大器。
The MU (middle and upper atmosphere) radar of Japan is a 46.5-MHz pulse-modulated monostatic Doppler radar with an active phased array system. The nominal beam width is 3.6° and the peak radiation power is 1 MW with maximum average power of 50 kW. The system is composed of 475 crossed three-subelement yagi antennas and an equivalent number of solid state power amplifiers (transmitter-receiver modules). Each yagi antenna is driven by a transmitter-receiver module with peak output power of 2.4 kW. This system configuration enables very fast and almost continuous beam steering that has not been realized by other mesosphere-stratosphere-troposphere radars. Also, a variety of sophisticated operations are made feasible by dividing the antenna array into several independent subarrays. A brief description of the system, particularly its antenna and power amplifiers, is presented herein.