Jove
Visualize
联系我们
JoVE
x logofacebook logolinkedin logoyoutube logo
关于 JoVE
概览领导团队博客JoVE 帮助中心
作者
出版流程编辑委员会范围与政策同行评审常见问题投稿
图书馆员
用户评价订阅访问资源图书馆顾问委员会常见问题
研究
JoVE JournalMethods CollectionsJoVE Encyclopedia of Experiments存档
教育
JoVE CoreJoVE BusinessJoVE Science EducationJoVE Lab Manual教师资源中心教师网站
使用条款与条件
隐私政策
政策

相关概念视频

Characteristics of Series Resonant Circuit01:24

Characteristics of Series Resonant Circuit

272
Series resonance occurs in a circuit containing inductive (L), capacitive (C), and resistive (R) elements connected sequentially. At the resonance frequency, the inductive and capacitive reactances are equal in magnitude but opposite in sign, effectively canceling each other. This causes the circuit's impedance is minimal, primarily determined by the resistance R. The resonant frequency of an RLC circuit is defined as:
272
Parallel Resonance01:23

Parallel Resonance

224
The parallel RLC circuit is an arrangement where the resistor (R), inductor (L), and capacitor (C) are all connected to the same nodes and, as a result, share the same voltage across them. The parallel RLC circuit is analyzed in terms of admittance (Y), which reflects the ease with which current can flow. The admittance is given by:
224
Standing Waves in a Cavity01:28

Standing Waves in a Cavity

954
A household microwave and lasers are examples of standing electromagnetic waves in a cavity. When two conducting metal plates are placed parallel at the nodal planes, it creates a cavity where standing waves are formed. The cavity between the two planes is analogous to a stretched string held at the points x = 0 and x = L. Here, the distance 'L' between the two planes must be an integer multiple of half of the wavelength. The wavelengths that satisfy this condition are given by:
954
Series Resonance01:17

Series Resonance

196
The RLC circuit impedance is defined as the ratio of the supply voltage to the circuit current. Resonance in such a circuit occurs when the imaginary part of this impedance equals zero. This specific condition means that the inductive reactance is exactly equal to the capacitive reactance. The frequency at which this happens is known as the resonant frequency. Mathematically, the resonant frequency is inversely proportional to the square root of the product of the inductance (L) and capacitance...
196
Design Example: Underdamped Parallel RLC Circuit01:17

Design Example: Underdamped Parallel RLC Circuit

324
Consider designing an oscillator circuit, a crucial component in various electronic devices and systems. The objective is to create an oscillator circuit with specific characteristics: a damped natural frequency of 4 kHz and a damping factor of 4 radians per second. To accomplish this, a parallel RLC circuit is employed, known for its ability to sustain oscillations at a resonant frequency. In this case, the damping factor is pivotal in achieving the desired performance.
Starting with a fixed...
324
Resonance in an AC Circuit01:26

Resonance in an AC Circuit

2.1K
The property of an inductor makes it resist any change in the current passing through it, while the property of a capacitor is to build up the charge across its terminals. Hence, if an inductor and capacitor are connected in series, they have opposite effects on the relative phase between current and voltage. The current through the circuit undergoes forced oscillation at the frequency of the source. The resistance term in an R-L-C circuit acts as a damping term because power is dissipated...
2.1K

您也可能阅读

相关文章

通过共同作者、期刊和引用图与本文相关的文章。

排序
Same author

A Compact Wideband Millimeter-Wave Crossover for Phased Array Antenna Systems in Remote Sensing Applications.

Sensors (Basel, Switzerland)·2025
Same author

Large- and Small-Scale Beam-Steering Phased Array Antennas Using Variable Phase BLC for Millimeter-Wave Applications.

Sensors (Basel, Switzerland)·2025
Same author

Frequency-Reconfigurable Millimeter-Wave Rectangular Dielectric Resonator Antenna.

Sensors (Basel, Switzerland)·2024
Same author

On-Chip Circularly Polarized Circular Loop Antennas Utilizing 4H-SiC and GaAs Substrates in the Q/V Band.

Sensors (Basel, Switzerland)·2024
Same author

A Novel Compact Broadband Quasi-Twisted Branch Line Coupler Based on a Double-Layered Microstrip Line.

Micromachines·2024
Same author

Cost-Effective Design of Polarization and Bandwidth Reconfigurable Millimeter-Wave Loop Antenna.

Sensors (Basel, Switzerland)·2023

相关实验视频

Updated: Jul 15, 2025

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

15.4K

一个多带毫米波矩形介电共振器天线与通向辐射使用平面料.

Tarek S Abdou1, Salam K Khamas1

  • 1Communications Research Group, Department of Electronic and Electrical Engineering, University of Sheffield, Sheffield S1 3JD, UK.

Micromachines
|September 28, 2023
PubMed
概括

这项研究引入了一种新的毫米波 (mmWave) 介电共振天线 (DRA) 具有全向模式,使用平面料网络实现. 这种多功能,多频段天线被验证用于体内和体外通信.

科学领域:

  • 电磁学和波浪传播
  • 天线理论和设计.
  • 微波工程 微波工程

背景情况:

  • 介电共振器天线 (DRA) 由于其理想的特性而被广泛使用.
  • 从矩形DRA中获得全方位的辐射模式,带来了独特的设计挑战.
  • 现有的文献中缺乏关于矩形DRA中全方位辐射的平面料网络的报告.

研究的目的:

  • 提出一种新的毫米波 (mmWave) 介电共振器天线 (DRA),具有全向辐射模式.
  • 为了证明平面料网在实现来自矩形DRA的全向辐射方面的有效性.
  • 探索拟议天线设计的多频段功能和辐射特性.

主要方法:

  • 设计和模拟一个矩形介电共振器天线 (DRA).
  • 整合平面料网络以激发特定的共振模式.
  • 对于28.5 GHz的全向辐射,退化的TE121/TE211模式的激发.
  • 激发TE111基本模式和料环槽共振,用于17.5 GHz和23 GHz的宽侧辐射.

主要成果:

  • 拟议的天线实现了一种全向模式,带宽为1.9%,在28.5GHz时获得4.3dBi的增益.
  • 演示了三带操作,在不同的频率有不同的辐射模式.
关键词:
介电共振器天线天线毫米波通信中的mmWave通信多频段的多频段服务.一个全方位的天线.

更多相关视频

Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

11.4K
Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
10:54

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

14.9K

相关实验视频

Last Updated: Jul 15, 2025

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers
13:44

Simulation, Fabrication and Characterization of THz Metamaterial Absorbers

Published on: December 27, 2012

15.4K
Fabrication and Characterization of Superconducting Resonators
10:26

Fabrication and Characterization of Superconducting Resonators

Published on: May 21, 2016

11.4K
Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters
10:54

Design, Fabrication, and Experimental Characterization of Plasmonic Photoconductive Terahertz Emitters

Published on: July 8, 2013

14.9K
  • 模拟结果通过物理测量得到验证,显示出良好的一致性.
  • 结论:

    • 这种新的平面料网络成功地实现了来自矩形DRA的全方位辐射.
    • 拟议的天线具有多功能多带操作,适合各种通信应用.
    • 经过验证的设计为车身内外通信系统提供了有前途的解决方案.