设计0.15-2 GHz高分辨率向量和宽带相位变换器与可控可编程减弱器,用于随机冷却系统
Liyao Ma1, Guangyu Zhu2,3, Junxia Wu2,3
1College of Physics and Electronic Engineering, Northwest Normal University, Lanzhou 730070, China.
The Review of scientific instruments
|December 6, 2023
概括
一个新的9位相位变换器在0.15-2 GHz带宽中提供精确的0.7°相位分辨率. 这种宽带数字可调相变器保持恒定的振幅,实现完整的360°相变范围.
科学领域:
- 电气工程 电气工程
- 微波工程 微波工程
背景情况:
- 精确的相位控制对于现代无线通信系统至关重要.
- 宽带相变器是雷达和电子战应用中必不可少的组件.
研究的目的:
- 开发和描述一个新的9位宽带数字可调节相变器.
- 为了实现高相分辨率和具有稳定的振幅的广泛相位移范围.
主要方法:
- 使用信号向量总和技术实现.
- 混合合器,数字减弱器和微波开关的集成.
- 系统调整衰减器值和开关配置.
主要成果:
- 实现了0.7°的最小分级相位移分辨率.
- 演示了完整的360°相位转移范围,幅度变化最小.
- 测量的平均插入损失为9 ± 2dB,相位失衡在±10°以内.
- 计算的RMS相位误差在0.15-2 GHz频段中低于5°.
结论:
- 拟议的9位宽带相变器有效地满足了高分辨率相位控制的要求.
- 信号向量总和技术可以实现精确而稳定的相位移.
- 该设备适用于需要精确相位操纵的先进射频和微波应用.
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