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The criterion and method for the optimization of antenna array topology are obtained.

然后提出了阵列优化准则和方法。

The results show that the UWB antenna array can be used in UWB pulse communication.

只是给了天线的仿真结果，没有给出实测结果，也没有说明采用的什么仿真软件。

Third, research on measuring circuit, antenna and matching net has been done.

其次进行了测试电路、天线和匹配网络的研究。

On the other hand, temperature compensation of the resonance frequency might become a problem if the bandwidth of the antenna circuit is low compared to the temperature variation of the resonance frequency.

另一方面，温度补偿的共振频率可能会成为一个问题，如果天线的电路带宽比较低的共振频率的温度变化。

Propose new DRA antenna designs and equivalent circuit model.

研究了介质谐振器天线分析与宽带化设计技术。

The reliability analyses of the redundancy structures of the antenna tilting mechanism circuit are done, and the comparisons and analysis of the results are done, and the useful conclusions for design and engineering are presented.

在此基础上，分析不同的冗余结构对天线翻倒机构电路可靠性的影响，提出对改进工程设计有益的结论。

The function of Angle Calibration System is calibrating the antenna array , circuit attenuation and the angle of RF target.

而角度校准系统主要用于校准射频系统的天线阵列、通路损耗及射频目标运动的方位角和俯仰角。

From the view of antenna circuit point, this paper adopts the finite difference time domain to analyze the impact on the center frequency and the bandwidth, which introduces by the radome.

从天线电路特性的角度入手，采用时域有限差分方法分析了天线罩的引入对天线中心频率、带宽比的影响。

This paper mainly introduces the hardware and software design of the wireless sensor network node for environmental monitoring. The hardware includes the design of the data acquisition module, the data processing module and wireless communication module including on-board antenna, balun circuit and PCB design of the high-frequency circuit.

本文主要对环境监测无线传感器网络的节点的软硬件设计进行了介绍，硬件方面重点介绍了数据采集模块，数据处理模块的接口设计，无线通讯模块的板上天线设计、巴伦电路和高频电路设计要点。

Momentum is a Full-Wave Method of Moments simulator intended to be used for RF and Microwave component, circuit and planar antenna analysis.

Momentum是一个基于矩量法的全波仿真器，它主要用于分析RF及微波元器件、电路及平面结构天线。

Methods Clinical data of 3 cases of bile duct injury during laparoscopic cholecystectomy were analyzed retrospectively.

回顾总结3例LC术中胆管损伤的临床资料，分析3例胆管损伤的原因及对策。

These techniques are applied to the gobang.

本文将这些技术用于五子棋中。