1) loss of reflected routing
反射路径损耗
1.
In this paper, the factors, including loss of reflected routing, performance of R.
文章从反射路径损耗、吸波材料性能、天线波束宽度等三个方面分析了影响暗室静区性能的因素,给出了暗室静度计算模型,较全面地考虑了影响暗室静区静度的各项因素,能够为暗室设计者提供科学的指导。
2) pathloss
路径损耗
1.
Aim at the lower height transmission environment by using the ultra wide band wireless signal in the communication link of micro air vehicle,analyse the probable existing landform and area in the propagation channel,and its impact on the pathloss of UWB signal.
针对将超宽带无线信号应用于超小型无人机通信链路的低空传输环境,分析了信号传播可能遇到的各种地形、地物等因素对传输损耗的影响,选择修正的S-V多径信道模型,对选定的两个信号传播环境进行了仿真,并给出了信道的路径损耗、冲激响应、rm s时延扩展、平均超量时延、多径分量数目和功率延迟剖面,仿真结果表明该模型能够有效反映信道的特性参数,可为超宽带接收机的设计提供参考。
2.
The field strength of reflection and diffraction rays is calculated in the local ray fixed coordinate systems to obtain the total field and pathloss of signals site.
反射线和绕射线的场强在本地射线基坐标系下计算，得出接收点处信号的总场强和路径损耗。
3.
To explore and simulate the impact of multipath fading,pathloss,and shadowing fading on wireless networks,mathematical and simulation models for fading and shadowing are proposed,a method to calculate the shadowing effect is designed,and the utilization of the pathloss exponent is optimized.
为了考察多径衰落、路径损耗和阴影衰落效应对无线网络性能的影响并对其进行准确模拟,建立了多径衰落和阴影衰落的数学和仿真模型,设计了阴影衰落效应的计算方法,优化了路径损耗指数的使用。
3) path loss
路径损耗
1.
Modeling of propagation path loss in a canopy;
树冠中电波传播路径损耗的研究及模型的建立
2.
Measuring of Mobile Communications Electromagnetic Wave Propagation Path Loss;
移动通信电波路径损耗的测试
3.
With the platform, the wireless signals characteristics of the tactical communication were analyzed, such as the propagation paths, receiver power and path loss.
针对这些因素,在建立不规则地形环境模型、战术通信设备模型的基础上,构建了复杂环境下的战术通信信道仿真平台,研究和探讨了战术无线通信信号在此环境中的传播路径、接收功率和路径损耗等特性,并给出了仿真分析结果。
4) path-loss
路径损耗
1.
Thus, the path-loss is determined as the condition of topology construction, and a path-loss based distributed topology control algorithm (PLBD) is designed.
考虑接收信号强度作为拓扑构建条件时需节点具备相同发射功率的不足,提出将路径损耗大小作为拓扑构建的条件,设计了一种分布式拓扑控制算法——PLBD。
5) reflection loss
反射损耗
1.
The Lichtenecher formula is used to culculate the electromagnetic parameters of radar absorbing coatings which are respectively made up of some adhesive and various radar-absorbing ingredients,the reflection loss formula (RLF) applicable to the homogeneous radar absorbing coatings is deduced according to the electromagnetic theory.
本文利用Lichtenecker性能加和公式对涂层的等效电磁参数进行了模 拟计算和分析，并根据电磁理论详细推导了涂层的反射损耗与其等效电磁参 数之间的关系，建立了由胶粘剂和不同种类、不同体积分数的吸收剂组成的 多层吸波涂层的吸波模型，并通过实验验证了该吸波模型的合理性。
2.
The paper puts emphasis on via s influence on signal reflection loss, and tries to give the optimum size of the via with numerical analysis and simulation method.
本文介绍了过孔的模型,采用软件HFSS对多层印刷电路板上的过孔设计进行仿真,通过仿真的方法找到过孔尺寸对反射损耗的影响规律,从而求出最佳的过孔尺寸,仿真结果对于高速PCB电路板设计具有实际指导作用。
3.
The results show that the effect of these factors on the reflection loss are in the following order, from strong to weak, milling time, particle size and mass fraction of the absorber.
结果表明:在设计范围内,各因素对吸波材料反射损耗的影响顺序从大到小为:球磨时间、粒径和质量分数;获得的最佳工艺条件:球磨时间为15h、吸收剂粒径小于48μm及其质量分数为75%,从而实现了对吸波材料性能的优化设计。
6) return loss
反射损耗
1.
Simulated by Coventor and HFSS,the switch results in a pull-in voltage less than 20 V,insertion loss less than 01 dB,return loss less than -25 dB at X band,and isolation better th.
介绍了一种带直流驱动电极交直流分离的MEMS开关,研究了影响开关阈值电压的因素,运用缩腰设计、尺寸优化等方法降低开关的阈值电压;运用阻抗匹配方法降低开关的反射损耗;利用等效电感的设计提高所需频段的隔离度。
2.
Its coupling is-20±2 dB,the isolation is-35 dB typically and the return loss is less than-20 dB.
76mm,耦合度-20±2dB,隔离度-35dB,反射损耗小于-20dB。
3.
In addition, the relation between via holes diameter and return loss is emonstrated.
针对平行带状线间的耦合问题,比较了平行带状线间不加孔栅和加孔栅的耦合干扰问题,研究了平行带状线间距不同时加不同孔栅结构的抗耦合干扰情况,分析了孔径与反射损耗的关系。
补充资料：介质损耗角正切试验(见电容率与损耗因数试验)
介质损耗角正切试验(见电容率与损耗因数试验)
dielectric loss tangent test
)!eZh.sunhooJ一002匕engq一e sh一yon介质损耗角正切试验(dieleetri。1055 tangenttest)见电容率与损耗因数试验。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条