Nonuniformly coupled microstrip transversal filters for analog signal processing
Nonuniformly coupled microstrip transversal filters for analog signal processing
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DOI：
10.1109/22.64604
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发表时间：
1991
影响因子：
4.3
通讯作者：
L. Hayden;V. Tripathi
中科院分区：
文献类型：
--
作者：
L. Hayden;V. Tripathi
利用非均匀单传输线频率响应与阻抗分布之间的傅里叶变换关系，推导了非均匀单传输线和非均匀耦合传输线的时域阶跃响应。的阶跃响应的特性终止的非均匀耦合传输线结构的表达式示出对应的特性阻抗分布。利用这种关系，任何阶跃响应都可以通过利用非均匀耦合的带状或微带线来实现，以作为波形整形网络和啁啾滤波器的可能应用。本文还提出了一种计算非均匀耦合线四端口阶跃响应的数值方法，该方法是根据一个具有大量截面的等效级联均匀耦合线模型的频域参数来计算的。正弦和啁啾响应的例子，很容易实现使用耦合微带结构。给出了一个实验非均匀耦合微带结构的阶跃响应，验证了理论结果。>
The Fourier transform relationship between frequency response and impedance profile for single nonuniform transmission lines is used to derive the time-domain step response of single and coupled nonuniform lines. The expression for the step response of a characteristically terminated nonuniformly coupled transmission line structure is shown to correspond to the characteristic impedance profile. By using this relationship, any arbitrary step response can be realizing by utilizing nonuniformly coupled strip or microstrip lines for possible applications as waveform-shaping networks and chirp filters. A numerical procedure to compute the step response of the nonuniform coupled line four-port is also formulated in terms of frequency-domain parameters of an equivalent cascaded uniform coupled line model with a large number of sections. Sinusoidal and chirp responses are presented as examples that are readily implemented using coupling microstrip structures. The step response of an experimental nonuniformly coupled microstrip structure is presented to validate the theoretical results. >