什么是天线效率？

天线的效率是指在无源时的效率，而手机的效率是指在有源时的效率

Total efficiency e=eref*erad eref reflection efficiency is the power loss caused by the impedance mismatch between the antenna input and the generatorerad Radiation eff for an electrically small antenna is the relation of the power radiated from the antenna to the power accepted by the antenna from the generator erad =Rrad/(Rrad+RL)

erad is Radiation Efficiency
eref is Reflection Efficiency
Rrad is Radiation resistance
RL is load resistance

申明：网友回复良莠不齐，仅供参考。如需系统了解手机天线设计，可以学习业界专家讲授的手机天线设计培训教程。