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相关概念视频

Parallel Resonance01:23

Parallel Resonance

515
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:
515
Characteristics of Series Resonant Circuit01:24

Characteristics of Series Resonant Circuit

568
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:
568
Mesh Analysis for AC Circuits01:12

Mesh Analysis for AC Circuits

664
In the domain of radio communication, the significance of impedance matching must be considered. It is crucial to ensure the efficient transmission of signals between radio transmitters and receivers. Achieving this balance involves using impedance-matching circuits, with one fundamental configuration comprising a resistor, capacitor, and inductor.
The process of harmonizing these impedances begins with a clear understanding of the input and output signals. Once these signals are known, the...
664
Generating Electromagnetic Radiations01:10

Generating Electromagnetic Radiations

6.7K
The German physicist Heinrich Hertz (1857–1894) was the first to generate and detect certain types of electromagnetic waves in the laboratory. Starting in 1887, he performed a series of experiments that confirmed the existence of electromagnetic waves and verified that they travel at the speed of light. Hertz used an alternating-current RLC (resistor-inductor-capacitor) circuit that resonated at a known frequency and connected it to a loop of wire. High voltages induced across the gap in...
6.7K
Series Resonance01:17

Series Resonance

743
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...
743
Design Example: Underdamped Parallel RLC Circuit01:17

Design Example: Underdamped Parallel RLC Circuit

622
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...
622

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相关实验视频

Updated: Jan 15, 2026

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials
10:28

Fabrication of Nanopillar-Based Split Ring Resonators for Displacement Current Mediated Resonances in Terahertz Metamaterials

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开放互补的分环共振器嵌入式三带矩形单极天线,为下一代无线应用提供偏移输入.

S Prasad Jones Christydass1, Devakirubakaran Samithas2, Praveen Kumar Balachandran3,4,5

  • 1School of Electronics Engineering, Vellore Institute of Technology, Chennai, Tamilnadu, 600127, India.

Scientific reports
|October 13, 2025
PubMed
概括

为无线局域网 (WLAN),无线航空内部通信 (WAIC) 和微波接入的全球互操作性 (WiMAX) 开发了一种新的紧型三带天线. 这种天线设计为下一代无线系统实现了出色的性能.

关键词:
超材料是一种超材料.这是OCSRR.补充料补充料补充料这是一个三带的三带.在WAIC中,您可以使用WAIC.无线网络 (WLAN) 是一个无线网络.这是WiMAX.

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Fabrication and Characterization of Superconducting Resonators
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科学领域:

  • 电磁和天线工程 电磁和天线工程
  • 微波工程 微波工程

背景情况:

  • 现代无线系统需要紧的多带天线,用于WLAN,WAIC和WiMAX等多种应用.
  • 现有的天线设计经常面临这些苛刻的应用程序的尺寸,带宽和性能限制.

研究的目的:

  • 设计和开发一个紧的三带矩形单极天线.
  • 为了实现WLAN,WAIC和WiMAX频率的增强多带性能和阻抗匹配.

主要方法:

  • 将一个开放互补分环共振器 (OCSRR) 集成到辐射贴片上.
  • 使用偏移微条带料和地面平面减速来提高性能.
  • 在FR4基板上制造,并通过模拟和测量进行验证.

主要成果:

  • 在3.16 GHz,3.82 GHz和5.41 GHz实现了共振.
  • 证明了180MHz,190MHz和2750MHz的显著阻抗带宽.
  • 获得了稳定的辐射模式和高达2.82dBi的峰值收益,低反射系数.

结论:

  • 拟议的天线为多带无线应用提供了一个低调,高性能的解决方案.
  • 整合OCSRR和偏移输送有效地提高了天线性能.
  • 该设计显示了模拟和测量结果之间的强烈一致,验证了其适用于下一代无线系统的适用性.