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相关概念视频

Field Effect Transistor01:29

Field Effect Transistor

338
Field-effect transistors (FETs) are integral to electronic circuits and distinguished by their three-terminal setup: the gate, drain, and source. These transistors operate as unipolar devices, which utilize either electrons or holes as charge carriers, in contrast to bipolar transistors, which use both types of carriers. The primary function of the FET is to modulate the flow of these carriers from the source to the drain through a channel. The voltage difference between the gate and source...
338
MOSFET: Enhancement Mode01:22

MOSFET: Enhancement Mode

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Enhancement-mode MOSFETs are pivotal components in electronics, distinguished by their capacity to act as highly efficient switches. They are part of the larger family of metal-oxide Semiconductor Field-Effect Transistors (MOSFETs). They are available in two types: p-channel and n-channel, each tailored to specific polarity operations.
In their basic form, enhancement-mode MOSFETs are typically non-conductive when the gate-source voltage (Vgs) is zero. This default 'off' state means no...
303

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相关实验视频

Updated: Jun 15, 2025

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
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支持深度神经网络的多功能可切换的太赫兹元材料设备.

Jing Li1,2,3,4,5, Rui Cai1,3,4,5, Huanyang Chen2

  • 1School of Instrument and Electronics, North University of China, Taiyuan, 030051, China.

Scientific reports
|August 27, 2024
PubMed
概括
此摘要是机器生成的。

一个新的多功能太赫兹元材料 (THz MMs) 设备,设计与深度神经网络 (DNN),充当超宽带吸收器和双功能的极化转换器,提供宽带和高效率.

关键词:
吸收器可以吸收.深度神经网络 (DNN) 是一个深度神经网络.双宽带 (UWB) 是指双宽带.多功能的多功能.极化转换器是一个极化转换器.

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相关实验视频

Last Updated: Jun 15, 2025

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13:44

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Published on: December 27, 2012

15.3K
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科学领域:

  • 超材料是什么?超材料是什么?
  • 特拉赫兹技术的技术.
  • 纳米光子学 纳米光子学

背景情况:

  • 特拉赫兹 (THz) 超材料具有独特的电磁性质.
  • 开发具有可切换功能的多功能THz设备对于先进的应用至关重要.
  • 现有的设备往往缺乏宽带宽或双重功能.

研究的目的:

  • 设计和优化一个多功能可切换的太赫兹元材料 (THz MMs) 设备.
  • 为了实现超宽带 (UWB) 吸收和双功能极化转换.
  • 为了利用深度神经网络 (DNN) 来优化设备.

主要方法:

  • 利用深度神经网络 (DNN) 来设计和优化THz MMs设备.
  • 研究了设备在不同状态的二氧化 (VO2) 中的性能.
  • 分析了吸收,偏振转换和角稳定性.

主要成果:

  • 从2.43-10 THz (145.2% RBW) 实现UWB吸收 (>90%率),对极化不敏感.
  • 证明了双功能的极化转换:线性到交叉 (4.58-10 THz,74.3% RBW) 和线性到圆形 (4.16-4.43 THz,6.29% RBW,圆比率~1).
  • 设备显示广角和高效性能.

结论:

  • 设计的THz MMs设备具有出色的UWB吸收和多功能极化转换能力.
  • 由DNN支持的优化为开发先进的多功能THz设备提供了一条途径.
  • 潜在的应用包括THz通信,光学开关和极化控制.