在毫米波频率上使用有缺陷的地面结构调节过器
Kaushik Annam1, Birhanu Alemayehu1, Eunsung Shin1
1Center of Excellence for Thin-Film Research and Surface Engineering (CETRASE), Department of Electrical and Computer Engineering, University of Dayton, Dayton, OH 45469, USA.
Micromachines
|January 25, 2025
概括
这项研究将相变材料 (PCM) 与有缺陷的地面结构 (DGS) 集成在一起,以动态调整带停止波器. 这种方法可以在先进的微波应用中进行显著的频率响应调整.
科学领域:
- 电气工程 电气工程
- 材料科学 材料科学 材料科学
- 微波工程 微波工程
背景情况:
- 缺陷地面结构 (DGS) 对于微波电路中的过至关重要.
- 巴强泰坦酸盐 (BST) 薄膜为DGS设计提供高介电性质.
- 动态频率调仍然是传统带停止波器的一个挑战.
研究的目的:
- 探索使用相变材料 (PCM) 来调节基于DGS的带停止波器的动态频率.
- 调查BST薄膜和PCM集成对过器性能的影响.
- 为了在DGS过器中实现显著的频率转移和广泛的调范围.
主要方法:
- 在BST薄膜上使用共平面波导 (CPW) 设计的头U槽DGS.
- 集成 Telluride (GeTe) PCM层用于可调节的电气性能.
- 模拟和实验验证过器性能和频率可调性.
主要成果:
- 级联式的两单元电池DGS在27.75GHz时实现了39.64dB的隙深度.
- 带有PCM的单个DGS单元显示了7.32%的频率调范围 (2.25 GHz转移).
- 连接PCM的两个DGS电池实现了12.04%的调范围 (3.25 GHz转移).
结论:
- 换相材料提供了一种可行的方法,用于DGS频段停止波器的动态频率调节.
- 拟议的BST和PCM集成的DGS显示出出色的捕能力和性能.
- 这项技术对可重新配置的微波和射频系统具有前景.
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