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首页> 外文期刊>IEEE Transactions on Microwave Theory and Techniques >On a class of low-reflection transmission-line quasi-Gaussian low-pass filters and their lumped-element approximations
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On a class of low-reflection transmission-line quasi-Gaussian low-pass filters and their lumped-element approximations

机译：一类低反射传输线拟高斯低通滤波器及其集总近似

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摘要

Gaussian-like filters are frequently used in digital signal transmission. Usually, these filters are made of lumped inductors and capacitors. In the stopband, these filters exhibit a high reflection, which can create unwanted signal interference. To prevent that, a new low-reflection ladder network is introduced that consist of resistors, inductors, and capacitors. The network models fictitious transmission lines with Gaussian-like amplitude characteristics. Starting from the analysis of this network, a procedure is developed for synthesis of a new class of lumped-element RLC filters. These filters have transmission coefficients similar to the classical Bessel filters. In contrast to the Bessel filters, the new filters exhibit a low reflection both in the stopband and passband, they have a small span of element parameters, and they are easy for manufacturing and tuning.
机译：高斯型滤波器经常用于数字信号传输。通常，这些滤波器由集总电感器和电容器制成。在阻带中，这些滤波器表现出高反射率，这会产生有害的信号干扰。为了防止这种情况，引入了一个新的低反射梯形网络，该网络由电阻器，电感器和电容器组成。该网络对具有高斯型幅度特征的虚拟传输线进行建模。从对该网络的分析开始，开发了一种用于合成新型集总元件RLC滤波器的过程。这些滤波器的传输系数与经典贝塞尔滤波器相似。与Bessel滤波器相比，新滤波器在阻带和通带中均表现出低反射，它们的元件参数跨度小，并且易于制造和调整。

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