Terahertz communication is one of the important development directions for wireless mobile communication in the 6G era,characterized by large bandwidth and low latency,suitable for various application scenarios such as high-speed wireless backhaul and satellite communication.This paper designs a D-band(110～170 GHz)wireless communication system based on intermediate frequency synthesis,achieving D-band broadband wireless communication with a total bandwidth of(n×2)GHz by synthesizing n intermediate frequencies with a bandwidth of 2 GHz each,thereby achieving a transmission rate of over 100 Gbps.To verify the feasibility of the system,a 1/n scale-down verification was conducted on the designed n-path communication system.The results show that using a 2 GHz D-band channel bandwidth,a maximum of 11.2 Gbps air interface transmission rate and 9.4 Gbps service transmission rate can be achieved with 128-QAM(Quadrature Amplitude Modulation),proving that the n-path intermediate frequency synthesis system architecture using only one set of D-band RF front ends can achieve low-cost D-band broadband high-speed wireless communication.
关键词
太赫兹通信系统/超外差架构/无线回传/128正交幅度调制
Key words
terahertz communication system/superheterodyne architecture/wireless backhaul/128 Quadrature Amplitude Modulation
维普
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