Their interest in ? a - stap stemmed from the fact that antenna engineers have excelled in the design of high performance sum and difference beam whether for phased array or for reflector antenna 人们对这种特殊的空时二维处理感兴趣的原因是无论相控阵天线系统还是反射面天线系统，天线工程师都可以设计出性能很好的和、差波束。
This paper consists of 3 sections : the theory and analysis of the conformal phased array , design of conformal array microstrip patch , and design and analysis of the millimetre microstrip conformal phased array 本论文主要包括共形相控阵天线理论分析、共形阵列微带贴片单元的设计、毫米波共形相控阵阵列的设计与分析等三部分内容。
Abstract : the single toroidal non - reciprocal ferrite phase shifter that isthe key components of a phase array antenna is studied to develop the phase array antenna for autotracking synchronous communication satellite 文摘:为了研制自动跟踪同步通信卫星平板相控天线阵系统，对相控阵天线中的关键元件单环非互易铁氧体移相器进行了研究。
Some special controls can be found hi all the possible disposing - phases to simplify the solution of the linear model , thus increasing the research efficiency . simulation of this method is made to prove the validity of the method 在相控阵天线的全部可能配相中寻找某些特殊的配相控制，就能够简化线性模型的求解，从而提高天线测量的效率。
In such devices , it is desirable to have a high dielectric tunability in a certain electric field range , where tunability is defined as the variation of dielectric constant with respect to the applied voltage 自上世纪50年代以来，用电控的方式进行波束扫描的方法得到了迅速发展，从而使相控阵天线及其基本元件移相器的研究获得了广泛的重视。
The key for phased array antennas with good functions is the use of controllable phase shifters . however , phase quantization errors affect the accuracy of phased array antenna beam pointing badly , which is mainly researched here 其中可控数字移相器的使用，是相控阵天线优越性能实现的关键，但由此引入的相位量化误差，严重影响了相控阵天线的波束指向精度。
Floquet ports : these periodic ports enable designers of phased - array antennas and frequency - selective surfaces to obtain separate fields into modes for better understanding and examine phase information for each mode 傅里叶端口:这种周期性的端口可以使相控阵天线和频率选择表面的设计者能够得到不同传输模式下的场型,从而能够更好地理解和验证每种模式下的相位信息
The mutual coupling between phased array antennas elements causes the loss of reflected power . following the changes of scanning angle , mutual coupling between elements will also change , so the comensation of mutual coupling should become difficult 相控阵天线单元间由于互耦效应引起的反射功率损耗,随着扫描角的变化而随之发生变化,这给互耦补偿带来了极大地困难。
Phased array radar is a detective system with multiple function , high reliability and adaptive ability , spatially the rapid scan and beam shape change characteristic of phased array antenna made its application more and more abroad 相控阵雷达是一种具有多功能、高可靠性和自适应能力的探测系统,尤其是相控阵天线所具有的波束快速扫描能力和波束形状快速变化能力等优点,使得相控阵雷达得到了越来越广泛的应用。
Digital t / r module use dds ( ddfs and ddws ) technique to implement amplitude and phase weighting , it can achive transmitting beamforming in if or lower frequency by using digital method whitch realizes phase control and amplitude weighting 数字t / r组件利用dds技术实现了雷达的信号产生和幅相控制,可以在中频甚至更低的频率上用数字的方法实现幅度加权和相位控制,从而真正地实现相控阵天线发射波束的全数字控制。
