设计一个低成本的平面电子频段下降转换器,具有可变的转换收益
Mehrdad Harifi-Mood1, Mansoor Dashti Ardakani1, Djilali Hammou1
1Place Bonaventure, Centre-Énergie, Matériaux et Télécommunications, Institut national de la recherche scientifique, University of Quebec (INRS), Montreal, QC H5A 1K6, Canada.
Sensors (Basel, Switzerland)
|September 13, 2025
概括
本研究介绍了一种基于宽带二极管的下调转换器,用于60-90 GHz的E频段频率. 它使用微型混合微波集成电路技术实现了可变的平面转换增益.
科学领域:
- 微波工程 微波工程
- 集成电路设计 集成电路设计
- 毫米波技术技术的技术.
背景情况:
- 毫米波 (mmWave) 系统需要高效的下转换,用于高速通信和传感等应用.
- 现有的设计经常面临带宽,增益平面性和在这些高频率上端口隔离方面的挑战.
研究的目的:
- 设计和实施一个基于宽带二极管的下转换器,在60至90GHz之间运行.
- 为了在整个工作频段实现可变和平面转换增益.
- 使用微型混合微波集成电路 (MHMIC) 技术进行紧实施.
主要方法:
- 开发了一种具有新拓的宽带双平衡混合器,用于最小反射和高RF-LO隔离.
- 使用一种局部振荡器 (LO) 链,结合了主动 (x2) 和被动 (x3) 乘数.
- 集成了一个使用OPA 657和可变增益的微分传 impedance 放大器 (TIA).
- 一个WR-12波导到基板集成波导 (SIW) 过渡被设计用于E频段操作.
主要成果:
- 下调转换器在60-90 GHz频段实现了最大转换增益为-5dB,变化为±5dB.
- 在RF和LO端口之间的高度隔离超过22dB.
- 混合器在RF和LO端口的回归损失大于10dB.
- 该设备消耗了560兆瓦的功率.
结论:
- 设计的MHMIC下方转换器在E频段应用中表现出色.
- 新型混合器拓和集成的TIA有助于宽带,平面增益特性.
- 这种实现为高频信号处理提供了可行的解决方案,提高了效率和集成.
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