相关实验视频

Updated: Jun 13, 2025

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

Published on: September 26, 2014

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一个缺陷的地面结构基于超紧的更宽带宽的太赫兹多输入多输出天线,用于新兴的通信系统

Praveen Kumar1, V Sivakumar2, Vidya Rao3

  • 1Department of Electronics and Communication Engineering, Manipal Institute of Technology, Manipal Academy of Higher Education, Manipal, 576104, India.

Heliyon
|September 16, 2024
PubMed
概括

这项研究介绍了一种新的四端口宽带太赫兹 (THz) 多输入多输出 (MIMO) 天线. 该天线使用有缺陷的地面结构 (DGS) 来实现高隔离性和在广的THz频率范围内的优秀MIMO多样性性能.

关键词:
存款保证金是一种存款保证金.这就是"MIMO MIMO".这是一个THz天线.宽带宽带是什么意思

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Standing Electromagnetic Waves01:15

Standing Electromagnetic Waves

Electromagnetic waves can be reflected; the surface of a conductor or a dielectric can act as a reflector. As electric and magnetic fields obey the superposition principle, so do electromagnetic waves. The superposition of an incident wave and a reflected electromagnetic wave produces a standing wave analogous to the standing waves created on a stretched string.
Suppose a sheet of a perfect conductor is placed in the yz-plane, and a linearly polarized electromagnetic wave traveling in the...
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Design Example: Capacitance Multiplier Circuit01:20

Design Example: Capacitance Multiplier Circuit

In integrated circuit technology, a capacitance multiplier is often utilized to produce a larger capacitance value when a small physical capacitance falls short. This is achieved by a circuit that multiplies capacitance values by a factor of up to 1000, such that a 10-pF capacitor can replicate the performance of a 100-nF capacitor.
The circuit illustrated in Figure 1 below incorporates two op-amps, with the first operating as a voltage follower and the second acting as an inverting amplifier.
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