Antenna radiation efficiency 天线辐射效率
radiation efficiency of antenna [电讯] 天线辐射效率
Determination of radiation efficiency 辐射效率的确定
luminous radiation efficiency 发光辐射效率
antenna measurement radiation efficiency 天线辐射效率量测
heat radiation efficiency 热辐射效率
high radiation efficiency 高辐射效率
sound radiation efficiency 声辐射效率
modal radiation efficiency 模态辐射效率
Nowadays, peopIehave two methods on impedance matching. First, by using the match layer of halfwaveIength, the radiation efficiency of airborne transducer was improved.
目前，人们采用匹配的办法有两种：一是采用半波长的匹配层，可以提高空气换能器的辐射效率。
参考来源 - 纵—弯模式转换空气换能器的圆形弯曲振动辐射器研究After solving the coupling equation, several parameters, which indicate the general characteristics of the shell vibration and sound radiation are calculated. The parameters are the acoustic radiated power level, the radial quadratic velocity level and the radiation efficiency.
通过求解流固耦合振动方程,计算了壳体在径向简谐激励下的表征壳体总体振动与声辐射的几个物理量:辐射声功率级、振动均方速度级和辐射效率。
参考来源 - 部分敷设阻尼材料有限长圆柱壳在流场中声辐射性能分析·2,447,543篇论文数据，部分数据来源于NoteExpress
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。
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。
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