一种可重构微波光子混频器的设计与研究
Design and Research on a Reconfigurable Microwave Photonic Mixer
韩一石 1李贤 1钟永明 1曾昶盛1
作者信息
- 1. 广东工业大学信息工程学院,广东广州510006
- 折叠
摘要
提出一种可重构微波光子混频器的设计与研究方案,该方案仅通过改变驱动信号和直流偏置电压,即可重构生成线性调频信号、变频信号或移相信号.其中,生成的线性调频信号具有三个波段,带宽最高可提高四倍;上、下变频信号可同时生成;获得的移相信号相位可在0～360°连续调谐.仿真结果表明,该方案可生成频率11 GHz和带宽2 GHz、频率18 GH和带宽4 GHz,以及频率29 GHz和带宽2 GHz的线性调频信号,脉冲压缩性能良好;可同时生成频率32 GHz的上变频信号以及8 GHz的下变频信号,电杂散抑制比高于30 dB;亦可生成0～360°相位连续可调的移相信号,且功率波动在0.1 dB以内,系统的无杂散动态范围达到114.1dB·Hz2/3.
Abstract
A design and research scheme for a reconfigurable microwave photonic mixer is proposed.The scheme can reconstruct and generate a linear frequency modulation signal,a frequency conversion signal,or a phase shift signal only by changing the driving signal and direct-current bias voltage.The generated linear frequency-modulated signal has three bands,and the bandwidth can be increased to four times at most.Up and down conversion signals can be generated at the same time.The obtained phase shift signal can be continuously tuned at 0-360°.The simulation results show that the scheme can generate linear frequency-modulated signals with a frequency of 11 GHz and a bandwidth of 2 GHz,a frequency of 18 GHz and a bandwidth of 4 GHz,and a frequency of 29 GHz and a bandwidth of 2 GHz.The pulse compression performance is good.It can simultaneously generate an up-conversion signal with a frequency of 32 GHz and a down-conversion signal with a frequency of 8 GHz,and the electric stray suppression ratio is higher than 30 dB.It can also generate a continuously adjustable phase-shift signal with a 0-360° phase,and the power fluctuation is within 0.1 dB.The system has a spurious free dynamic range of 114.1 dB·Hz2/3.
关键词
光通信/微波光子/混频/线性调频/移相Key words
optical communication/microwave photon/mixed frequency/linear frequency modulation/phase shift引用本文复制引用
基金项目
国家自然科学基金(61471130)
广东省重点领域研发计划项目(2019B010138004)
出版年
2024
NETL
NSTL
万方数据