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引言和成本问题概述近年来,相控阵技术得到了发展,从而满足了在各种雷达使用埸合中对付威胁的要求。为了反人为干扰和对付反辐射导弹的威胁,研制了旁瓣的最大值和平均值都低的相控阵天线。出于降低人为干扰和反辐射导弹,有效度的需要,相控阵的工作带宽己设计得非常宽,使相控阵雷达能够完成目标识别测量。尽管相控阵天线性能优良,但由于成本较高,相控阵雷达仍未大规模生产。在相控阵雷达系统中,影响成本的基本因素有四个。第一个因素是在一般相控阵天线中分立元件的数量大。一般,在要求角度分辨力高的雷达应用中,一部相控阵天线要有几千个辐射单元。而每个辐射单元后面是移相器、驱动器、波束形成网络和放大器。这些元件中的每一个,在它装到天线系统前必须一个个地制造、组装和测试。在固态相
INTRODUCTION AND COST PROBLEM OVERVIEW Phased array technology has been developed in recent years to meet the challenge of meeting threats in a variety of radar applications. In order to counter the human interference and counter the threat of anti-radiation missiles, a phased array antenna with a maximum and a low average value of side lobes was developed. In order to reduce the man-made interference and anti-radiation missiles, the effectiveness of the needs of the work of the phased array bandwidth has been designed very wide, so that the phased array radar to complete the target recognition measurement. Despite the excellent performance of phased array antennas, phased array radars have not yet been mass-produced due to their high cost. In the phased array radar system, there are four basic factors that affect the cost. The first factor is the large number of discrete components in a typical phased array antenna. In general, a phased array antenna requires thousands of radiating elements in radar applications that require high angular resolution. Each radiating element is followed by a phase shifter, driver, beamforming network and amplifier. Each of these components must be manufactured, assembled and tested one by one before it is mounted to the antenna system. In the solid phase