2013•Space Electronic technologyRequires access

Study on an S-Band Microwave Rectenna Array in Microwave Power Transmission

Zhang Bia

Abstract

The microwave power transmission is an approach to wireless power transmission in space.As an important part of a microwave wireless power transmission system,microwave rectenna arrays have been widely studied.A microstrip dipole antennas and a microwave rectifier with high conversion efficiency were designed at 2.45GHz,and a rectenna array with the area of 50cm by 50cm was built.The array is composed of 72 rectenna units,and each unit consists of a dipole antenna and a rectifier circuit.The experimental results show that the highest microwave power transmission efficiency reaches37.1%.

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Key concepts: Rectenna, Microwave transmission, Microwave, Microstrip, Rectifier (neural networks), Electrical engineering, Antenna (radio), Power transmission