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相关概念视频

Passive Filters01:27

Passive Filters

956
Passive filters are utilized to shape the frequency spectrum of signals across a diverse array of applications. These filters, using only passive elements like resistors (R), inductors (L), and capacitors (C), are capable of selectively allowing or blocking certain frequency ranges without the need for external power sources.
Low-Pass Filters
Low-pass filters are designed to transmit signals with frequencies lower than the cutoff frequency, ωc, and attenuate those above it. The cutoff...
956
Active Filters01:25

Active Filters

1.3K
Active filters are electronic circuits that use operational amplifiers (op-amps), resistors, and capacitors to filter out unwanted frequency components from a signal. A first-order low-pass active filter is designed to pass signals with a frequency lower than a certain cutoff frequency and attenuate frequencies higher than that cutoff frequency. The transfer function for a first-order low-pass active filter is:
1.3K

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相关实验视频

Updated: Jan 16, 2026

Origami Inspired Self-assembly of Patterned and Reconfigurable Particles
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基于聚氨基底的可重新配置的低通波器,灵感来自于原木结构.

Kang Wang1,2, Mingcheng Li1, Chuyuan Gao1

  • 1Key Laboratory of MEMS of the Ministry of Education, Southeast University, Nanjing 210096, China.

Micromachines
|September 27, 2025
PubMed
概括
此摘要是机器生成的。

这项研究介绍了可重新配置的无线电频率 (RF) 设备的新原创灵感设计. 该方法有效调整低通波器的低通波器.

关键词:
这是一个V形光束.低通波器过器的低通波器奥里加米的结构结构是原始的.可重新配置的可重新配置.罗姆比克束 (rhombic beam) 是一种光束.

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Last Updated: Jan 16, 2026

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科学领域:

  • 电气工程 电气工程
  • 材料科学 材料科学 材料科学
  • 机械工程 机械工程

背景情况:

  • 可重新配置的射频 (RF) 设备对于现代无线通信系统至关重要.
  • 传统设计往往面临着调制性和小型化方面的局限性.
  • 原木原理为机械重新配置提供了一种独特的方法.

研究的目的:

  • 为可重新配置的微带射频设备提出创新的设计方法.
  • 为了利用原木结构来实现机械重新配置.
  • 通过理论和实验验证证明这种新设计方法的有效性.

主要方法:

  • 一个可重新配置的微带射频设备设计的开发,灵感来自于原木折叠.
  • 一个可重新配置的低通波器原型的制造和实验测试.
  • 分析频率调范围,返回损失和插入损失性能.

主要成果:

  • 灵感来自于原创的可重新配置的低通波器实现了524-568 MHz的频率调范围,最大折叠高度为3mm.
  • 实验结果显示回归损失低于-15.0 dB,插入损失低于2.5 dB,直至500 MHz.
  • 通过全面的理论和实验验证,拟议的设计方法被证明是有效的.

结论:

  • 基于原创的设计方法是可重新配置的射频设备的突破性方法.
  • 这种技术为开发先进,可调节的射频组件提供了巨大的潜力.
  • 这项研究验证了将原木原理集成到射频设备工程中的有效性.