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相关概念视频

Clipper Circuit01:18

Clipper Circuit

451
A clipper circuit is a fundamental wave-shaping device that harnesses the unique properties of diodes to alter and control waveform characteristics. This technology is widely used in electronic devices, especially in television and radar communication systems, where it enhances waveform modulation in both transmitters and receivers.
The operation of a clipper circuit can be exemplified by analyzing a dual-clipper configuration setup that integrates two ideal diodes, each paired with a biasing...
451
Half wave rectifier01:20

Half wave rectifier

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A half-wave rectifier is a fundamental circuit in electronics, designed to convert alternating current (AC) voltage into a unidirectional voltage. It utilizes the simplest form of diode rectification, where the circuit comprises a single diode in series with a load resistor and an AC power source.
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Equivalent Circuits for Practical Transformers01:28

Equivalent Circuits for Practical Transformers

437
The practical equivalent circuits of single-phase two-winding transformers exhibit significant deviations from their idealized versions due to the inherent properties of winding resistance and finite core permeability. These properties result in real and reactive power losses, affecting the transformer's performance. Understanding these deviations is crucial for designing more efficient transformers.
In a practical transformer, each winding exhibits resistance and leakage reactance. The...
437
Full wave rectifier01:22

Full wave rectifier

1.2K
A full-wave rectifier is a device that converts alternating current (AC) to direct current (DC) and is more efficient than its half-wave counterpart. It typically includes a center-tapped transformer, two diodes, and a load resistor. The secondary winding of the transformer is divided to provide two equal voltages of opposite polarities, which is the pivotal element of full-wave rectification.
1.2K

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相关实验视频

Updated: Jul 8, 2025

Terahertz Microfluidic Sensing Using a Parallel-plate Waveguide Sensor
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一个X波段紧的矩形波导TE10圆形波导TE01模式转换器.

Tao Jiang1, Zili Jiang1, Weida Bai1

  • 1Northwest Institute of Nuclear Technology, Xi'an 710024, China.

The Review of scientific instruments
|December 11, 2023
PubMed
概括

本研究介绍了一种紧的X频段模式转换器,用于高效地将矩形波导TE10转换为圆形波导TE01. 该设计实现了高TE01模式转换效率和低反射,通过模拟和实验验证.

科学领域:

  • 电磁学 电磁学 电磁学 电磁学
  • 微波工程 微波工程
  • 波导理论 波导理论

背景情况:

  • 在高频微波系统中,高效的模式转换至关重要.
  • 传统的转换器面临着效率和带宽方面的挑战.
  • 在需要低损耗和辐射模式的应用中,TE10转换为TE01模式至关重要.

研究的目的:

  • 设计和验证一个紧而高效的X波段矩形波导TE10到圆形波导TE01模式转换器.
  • 通过减轻反射和抑制不需要的模式来提高TE01模式转换效率.
  • 为了实现高性能,反射系数低于5%和高转换效率.

主要方法:

  • 模式转换原理的理论分析.
  • 使用电磁软件进行数值模拟.
  • 结构设计包括波导步骤和窒息槽.
  • 使用背对背测试系统进行实验验证.

主要成果:

  • 设计的模式转换器在9.3 GHz实现了模拟的TE01模式转换效率,约为98.4%.
  • 模拟的反射系数低于5%.
  • 实验结果证实TE01模式转换效率约为98.2%.

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结论:

  • 拟议的紧型X频模式转换器表现出高效率和低反射.
  • 该设计有效地抑制不需要的模式,并对抗反射.
  • 实验验证证证实了模拟结果,显示了实际适用性.