Beam collecting efficiency analysis in microwave power transmission demonstration system for SSPS

This paper presents a microwave power transmission demonstration system comprehensively simulating the operating mode and validating the functions and efficiency of microwave power transmission technologies for SSPS (Space Solar Power Station). The transmitting antenna array is a planar microstrip antenna array with quasi-Gaussian distribution. The beam collecting efficiency of this system is about 94% analyzed by theoretical transmission equation and radiation field integral method respectively. Compared with uniform distribution, the beam collecting efficiency in this system is well enhanced.