Using this model and the relevant dyadic Green's function, some characteristics of a rectangular patch antenna near resonance, such as radiation resistance and space waveefficiency, are analysed.
应用此模型，并结合分层介质中的并矢格林函数，分析了贴片天线的辐射阻抗、空间波辐射效率等特性。
2
Team Li-ion's Wave II two-seater also earned a high fuel efficiency rating — the equivalent of more than 171 mpg.
锂离子队的浪潮II型双座跑车也获得了较高的燃油效率得分 - 等效于每加仑跑171英里以上。
3
This reduces their efficiency, increasing the cost per kWh and preventing wave power from making progress.