Thatis to say, to demand high fidelity of signal, it would have to lower the radiation efficiency.
也就是说，要求高的信号保真度，必将导致低的辐射效率。
The radiation efficiency of the radiation modes falls off very rapidly with increasing modes order at low frequency.
研究发现在中、低频时，声辐射模态对应的辐射效率随着模态阶数的增加而迅速降低。
Proper impedance load can reduce RCS effectively, meanwhile antenna's gain and radiation efficiency are not affected.
适当的阻抗加载能有效降低天线rcs，同时还能保证天线的辐射性能。
The radiation efficiency of the radiation modes falls off very rapidly with the increase of modes order at low frequency.
由于在中、低频时，声辐射模态对应的辐射效率随着模态阶数的增加而迅速降低。
The results for element input impedance, radiation efficiency of space wave, directivity and radiation pattern are presented.
其结果包括阵列单元的输入阻抗、空间波辐射效率、方向性系数和辐射方向图等。
Similarity rules were derived for a finite cylindrical shell, characterized by radiated sound power and radiation efficiency.
以水中有限长圆柱壳体为理论模型，用辐射声功率和辐射效率作为表征量导出了相似律。
The rail acoustic radiation efficiency has little difference whether the force is on the sleeper or in the middle of the sleeper.
力作用在轨枕中间与轨枕上方时，声辐射效率差别极小。
The results show that (1) the modal radiation efficiency increases with the increasing of the frequency in the whole frequency range;
结果表明：（1）圆板的模态声辐射效率在全频段内大体呈现随着振动频率的增高而增大的特点；
As an example, the radiation efficiency of the simply-supported, clamped and free square plate is computed and discussed in the paper.
作为实例，最后还对简支、固支、自由平板的声辐射效率进行了计算与讨论。
The energy pattern, total radiation energy, radiation efficiency and radiation resistance of standing-wave dipole excited by rectangular pulse are discussed.
本文讨论了矩形脉冲激励的对称驻波天线的能量方向图、总辐射能量、辐射效率和辐射电阻等问题。
Numerical analysis of vibration and sound radiation efficiency from a submerged cylindrical shell has been carried out by using FEM methods, BEM methods and statistical energy methods.
利用有限元、边界元和统计能量分析方法并结合软件对圆柱壳体在流场中受激振动及声辐射效率作了数值计算分析研究。
To increase the radiation efficiency and broaden the operation bandwidth, an aperture-coupled microstrip antenna of high temperature superconductor with multi-layer substrates is designed.
为提高辐射效率和扩展工作带宽，对一种口径耦合馈电的多层介质高温超导微带天线进行了设计。
A theoretical method to solve acoustical radiation modes and acoustical radiation efficiency of complex structure by a boundary element method and acoustical radiation theory is posed in this paper.
提出一种用边界元方法与声辐射理论求解复杂结构的声辐射模态与声辐射效率的理论方法。
Default 3D far-field calculations now also lists radiation-efficiency and RDF value.
默认的3D远场计算，现在还列出了辐射效率和RDF价值。
Default 3D far-field calculations now also lists radiation-efficiency and RDF value.
默认的3D远场计算，现在还列出了辐射效率和RDF价值。
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