The short range of the induction-loop antenna in the lens means the external antenna has to be very close to the eye: taped around the eye socket, in fact.
眼镜内感应圈天线短意味着外部天线离眼睛一定很近：实际上就是黏在眼眶周围。
2
We adopted Gaussian beam, ray tracing and vector diffraction integration together to analyze single beam spot-focusing lensantenna.
本文采用将高斯波束法，射线追迹和矢量衍射积分相结合的方法来分析单波束的点聚焦透镜天线。
3
Main task of this dissertation is designing a multi-beam lensantenna to both improve the resolution and reduce the imaging time of the passive millimeter-wave imaging system.