Wireless Power Transfer for 6G Network Using Monolithic Components on GaN

摘要

A novel architecture for Wireless Power Transfer(WPT)module using monolithic components on GaN is presented in this paper.The design of such a WPT module receives DC power from solar panels,consists of photonic power converter(PPC),beamforming antenna,low pass filter,input matching network,rectifier,output matching network and logic circuit(off-chip)which are all integrated on a GaN chip.Our WPT components show excellent simulated performance,for example,our novel beam-forming antenna and multiple port wideband antenna have a gain of 8.7 dB and 7.3 dB respectively.We have added a band pass filter to the rectifier output which gives two benefits to the circuit.The first one is filtering circuit will remove unwanted harmonics before collecting DC power and second is filter will boost the efficiency of rectifier by optimizing the load impedance.Our proposed rectifier has RF-DC conversion efficiency of 74%and 67%with beam-forming antenna and multiple port wide band antenna respectively.Our WPT module is designed to charge a rechargeable battery(3 V and 1 mA)of a radio module which will be used between two antennas in future 5G networks.We believe our proposed WPT module architecture is unique and it is applicable to both microwave and millimeter wave systems such as 6G.