相关实验视频

Updated: Jul 16, 2025

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
12:18

Microwave Photonics Systems Based on Whispering-gallery-mode Resonators

Published on: August 5, 2013

17.0K

可调节带宽微波光子过器,带宽和形状因子在很大程度上可重新配置,基于级联化微环共振器的形状因子

Wei Cheng, Dongdong Lin, Pengfei Wang

    Optics express
    |September 15, 2023
    PubMed
    概括

    这项研究引入了一种改进的带通微波光子波器 (MPF),使用两个微环共振器 (MRR) 来增强无线电频率 (RF) 信号处理. 双MRR设计显著提高了过器的性能,并允许重新配置带宽和可调节频率.

    更多相关视频

    Fabrication of Silica Ultra High Quality Factor Microresonators07:51

    Fabrication of Silica Ultra High Quality Factor Microresonators

    Published on: July 2, 2012

    16.5K
    Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters15:25

    Design and Characterization Methodology for Efficient Wide Range Tunable MEMS Filters

    Published on: February 4, 2018

    6.2K

    相关概念视频

    Passive Filters01:27

    Passive Filters

    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...
    561
    Characteristics of Series Resonant Circuit01:24

    Characteristics of Series Resonant Circuit

    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:
    278
    Active Filters01:25

    Active Filters

    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:
    855