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Capacitor With A Dielectric01:18

Capacitor With A Dielectric

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Parallel plate capacitors consist of two conducting plates separated by a certain distance. However, it is mechanically difficult to hold the large plates parallel to each other without actual contact. Hence, a dielectric layer is commonly placed between the plates, which provides an easy solution for holding the plates together with a small gap and increases the capacitance of the capacitor.
Dielectrics are non-conducting materials with no free or loosely bound electrons. When a dielectric is...
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相关实验视频

Updated: Jan 16, 2026

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
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Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

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基于E-数字间结构的双频平面微波固体复杂介电常数传感器系统

Haoyang Shi1, Xuchun Zhang1, Lin Huang1

  • 1Air Defense and Anti-Missile Academy, Air Force Engineering University, Xi'an 710043, China.

Sensors (Basel, Switzerland)
|September 27, 2025
PubMed
概括
此摘要是机器生成的。

本研究介绍了一种双带微波传感器,用于准确测量材料介电性质. 它的差分操作减轻了环境干扰,提供了一个具有成本效益和高灵敏度的解决方案.

关键词:
复杂的介电常数 复杂的介电常数这是一个双频带的双频带.微波传感器是一个微波传感器.传感器系统 传感器系统传感器系统

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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:

  • 精确测量复杂介电常数对于材料的表征至关重要.
  • 现有的方法可能对环境变化敏感,或需要复杂的设置.

研究的目的:

  • 为了引入一种新的双频平面微波传感器系统.
  • 为了能够精确地测量固体材料的复杂介电常数.
  • 开发一个具有固有的环境补偿能力的系统.

主要方法:

  • 设计一个带有双共振频率 (3GHz和3.92GHz) 的E-数字间结构的传感探测器.
  • 集成用于信号生成和处理的电路模块.
  • 使用宽带合器进行信号差异化.
  • 基于共振频率和峰值衰减变化的操作原理.

主要成果:

  • 一个原型传感器系统被制造和测试.
  • 该系统在测量复杂介电常数时表现出高灵敏度.
  • 不同的操作有效地减轻了环境影响.
  • 传感器独立地实现了准确的测量.

结论:

  • 拟议的双频平面微波传感器系统是有效的介电性质测量.
  • 该设计提供了高灵敏度,低成本和环境稳定性.
  • 该系统与辅助设备的独立性提高了其实用性.