And then , we analyze the nonlinear properties of limiting amplifier . due to the typical nonlinear properties of limiting amplifier , we studied the method of academic analysis for microwave nonlinear circuit and the nonlinear circuit model of transistor in detail 由于微波限幅放大器的工作是典型的非线性特性,我们研究了非线性电路的分析方法和微波晶体管的非线性模型,详细得介绍了谐波平衡法这种重要的非线性电路分析方法。
In this paper , the calculation is made of the electric stress distribution and specific absorption rate ( sar ) distribution in the human body exposed to the stable plane wave and nuclear explosion electromagnetic pulse and microwave weapon electromagnetic pulse 本文主要讨论了振幅为100 、随正弦规律变化的稳态平面波、核爆炸脉冲波和微波武器脉冲波作用下人体内的电场应力的分布，同时也给出了在上述电磁波的作用下sar (比吸收率)的分布。
This set also examines how rf and microwave engineering continues to have great influence as the technology behind such important applications as radar , remote sensing , remote control , sensors , navigation , surveillance , electronic warfare , radiometers , plasma research , and imaging 该卷组还考查了射频和微波工程如何继续作为下述重要应用领域背后的科学技术继续产生重大影响：雷达、遥感、遥控、传感器、导航、监视、电子战、辐射计、等离子体研究和成像。
Carbonyl iron particles and iron - epoxy resin composite particles , which both mrs and microwave absorber are based on , were prepared by method of dropping fe ( co ) 5 to dmf in constant temperatures and of heating the solution of fe ( co ) 5 / dmf stage by stage , combining in situ composite technique 本论文采用恒温滴加法和逐步升温液相法热分解合成了羰基铁粒子，并结合原位聚合复合技术制备了羰基铁-环氧树脂复合粒子，然后用它们组成了磁流变液和微波吸收材料。
Wireless communications are evolving toward using higher frequencies , wider bandwidth and more functionality to satisfy growing demands of users worldwide . in recent years a concept of system - on - package ( sop ) is getting more attention in the rf area and is being applied to rf functional blocks and the front - end modules to achieve lower cost , improved performance , and increased design flexibility 随着个人通信技术的向更高频率、更宽带宽而用户发展的要求不断的提高，射频前端的设计越来说困难，近几年一个sop ( systemonpackage )的设计思想得到射频设计界的大量关注。 sop也就是说将无源元件和微波集成电路用现有的多层封装和连接技术组装在一个射频模块中。
Particle simulation method is used to investigate the properties of the rco - tat , including the basic physical process of the beam - wave interactions and the dependence of the microwave radiation on the structure parameters , the beam parameters , and the guiding magnetic field intensity and distribution 利用21 / 2维电磁模相对论pic粒子模拟程序研究了rco - tat工作的基本物理过程，并研究了器件的结构参数、束流参数、导引磁场强度和分布对束波作用和微波输出的影响。
The second , a complete simulation computation method for output circuit of broadband klystron is developed , basing on existing program isfel3d for simulation computation of three dimensions electromagnetic field , principle of output circuit of broadband klystron and microwave network theory . some practical examples are calculated and the calculated results are compared with cold test results , so that the reliability of the simulation computation method is proven 第二，基于现有的三维电磁场模拟计算软件isfel3d 、宽带速调管输出回路原理和微波网络理论，建立了一套完整的宽带速调管输出回路模拟计算方法，并通过实际例子的计算结果和冷测结果的比较，验证了该模拟计算方法的可靠性。
Inorganic , organic - inorganic and organic cross - linked montmorillonites are obtained by using convention and microwave methods modify na - montmorillonite of liaoning . study of its adsorption behavior for nitrobenzene , aniline , f - and cr6 + in water . the interrelated mechanisms are also discussed 本论文以钠化改型后的辽宁蒙脱石为原料，用常规和微波加热的方法制备无机、有机?无机复合和有机交联蒙脱石，系统研究了其对水溶液中硝基苯、苯胺、 f ~ -离子和cr ~ ( 6 + )离子的吸附行为，探讨了相关机理。
A general review of recent development and application of the technology of remote - sensing in monitoring soil moisture was done with emphasis on introducing the relatively mature and extensively used feature space method and microwave remote - sensing method based on visible light and thermal infrared bands 摘要对于近年来国内外遥感监测土壤水分的理论、方法的发展和应用进行了全面的回顾，重点介绍了目前已经比较成熟和广泛应用的基于可见光与热红外波段的特征空间方法和微波遥感方法。
First , we introduce the basic theory , which is useful to density measurement , namely , transmission - line theory , its content consist of transmission - line equivalent circuit 、 smith chart 、 impedance matching and microwave network technology . the on - line density measurement technology with microwave has been narrated as a key part 首先，分析了微波密度在线测量技术的理论基础- -传输线理论，其内容包括将用于谐振腔设计的传输线等效电路、施密斯圆图以及阻抗匹配和微波网络等多方面的技术。
