修改的宽带鲁瑟夫型传输线路变压器Balun用于隔离增强的被动混合器设计
Ding He1,2, Zhentao Yu3, Jie Chen3
1Aerospace Information Research Institute, Chinese Academy of Sciences, Beijing 100190, China.
Micromachines
|March 28, 2024
概括
这项研究介绍了一种改进的Ruthroff型传输线变压器 (TLT) balun用于超宽带被动混合器,实现了增强的局部振荡器 (LO) 到射频 (RF) 隔离,并改善了集成收发器系统的性能.
科学领域:
- 电气工程 电气工程
- 微波工程 微波工程
- 集成电路设计 集成电路设计
背景情况:
- 宽带运行对于现代收发器系统至关重要,需要高效的被动混合器.
- 超宽带双向被动混合器通过避免复杂的上/下转换来简化收发器架构.
- 现有的混合器设计经常面临隔离和带宽限制的挑战.
研究的目的:
- 为了提供改进的鲁瑟夫型输电线变压器 (TLT) 弹头,以加强混合器隔离.
- 为了改善局部振荡器 (LO) 端口的返回损失,并促进中间频率 (IF) 提取.
- 在被动双平衡混合器中,在广泛的带宽上提高振幅/相位平衡性能.
主要方法:
- 一个改进的Ruthroff型TLT弹道架构,采用分流电容和并联线路.
- 应用一个并行补偿技术与一个电感器和电阻对射频 balun.
- 设计和制造使用0.15微米GaAs p-HEMT技术的8-30 GHz被动双平衡混合器.
主要成果:
- 实现了隔离增强的8-30 GHz被动双平衡混合器.
- 在15dBm LO功率下,证明了平均转换损失为7dB和50dB的LO-to-RF隔离.
- 单立式微波集成电路 (MMIC) 占据了0.96 × 1.68 mm2 的紧面积.
结论:
- 拟议的修改后的Ruthroff型TLT弹有效地提高了混合器的隔离和性能.
- 该设计为超宽带,高度集成的收发器应用提供了可行的解决方案.
- 这项工作证明了宽带通信系统的被动混合器技术的重大进步.
相关概念视频
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