| 摘要: |
| 根据国际电信联盟的建议，6G峰值速率将达到100～1 000 Gb/s，信号的调制带宽可突破11 GHz。而目前主流的中高端矢量信号源的调制带宽仅为5～10 GHz，已难以满足这类前沿技术领域的信号测试要求。针对该问题，提出一种新型硬件架构的矢量信号源，其瞬时带宽可达12 GHz，在1.6 GHz频率点的典型相位噪声可达-139.7 dBc/Hz@100 kHz。介绍了该信号源的硬件总体设计方案，阐述了核心通信接口的逻辑设计，分析了速率适配数据处理、高速串行总线传输和射频直接生成等关键技术，仅使用8条差分信号线就实现了224.4 Gb/s的高速数据传输。该信号源具备12 GHz┧彩豹带宽信号的生成能力，可解决主流信号源无法满足6G网络等前沿技术领域信号测试需求的问题。 |
| 关键词: 6G网络 信号测试 矢量信号源 射频直接生成 瞬时带宽 |
| DOI：10.20079/j.issn.1001-893x.260123001 |
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| 基金项目: |
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| Hardware Design and Performance Analysis of a Vector Signal Generator with Ultra-wide Instantaneous Bandwidth |
| CHEN Feilong |
| (Chengdu Spaceon T&C Technology Co.，Ltd.，Chengdu 611731，China) |
| Abstract: |
| According to recommendations from the International Telecommunication Union(ITU)，the peak data rate of 6G is expected to reach 100～1 000 Gb/s，with signal modulation bandwidth potentially exceeding 11 GHz.However，the modulation bandwidth of current leading vector signal generators is only 5～10 GHz，which is insufficient to meet the testing requirements of these cutting-edge technologies.To address this challenge，a vector signal generator based on new hardware architecture is proposed with an instantaneous bandwidth of up to 12 GHz.Its typical phase noise is -139.7 dBc/Hz @100 kHz，1.6 GHz.The overall hardware design is introduced，the logic design of the core communication interface is elaborated，and the key technologies involved are analyzed，including rate-adaptive data processing，high-speed serial bus transmission，and direct radio frequency(RF) signal generation.A high-speed data transmission rate of 224.4 Gb/s is achieved using only 8 differential signal lines.The signal generator can generate signals with an instantaneous bandwidth of 12 GHz，effectively addressing the testing gap for 6G and other advanced technologies. |
| Key words: 6G network signal test vector signal generator direct RF generation instantaneous bandwidth |
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