Commentary
发表于 2025-3-25 06:27:12
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anchor
发表于 2025-3-25 08:22:46
Topological Simulation,erent ways. Previously, we have discussed several variants of immitance simulation and wave active filters. In this section, methods where the voltage-current relationships of the ladder network are preserved, i.e., the networks topology, is simulated . The resulting filter structures have as expected low sensitivity.
Acetaminophen
发表于 2025-3-25 14:19:42
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检查
发表于 2025-3-25 19:16:12
Synthesis of Analog Filters,and the coefficients in the transfer function, for different types of requirements. The coefficients, which determine the positions of the poles and zeros, will later be used to determine the component values in the filter realizations. Here, we will focus on frequency selective filters, which can b
Ganglion-Cyst
发表于 2025-3-25 20:32:53
Passive Filters,ors, inductors, and capacitors. Such filters are normally realized with only passive elements and are implemented with resistors, coils, and capacitors. A passive or lossless circuit element cannot increase the signal energy. Passive . filters belong to the oldest implementation technologies but sti
减弱不好
发表于 2025-3-26 00:11:53
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Decline
发表于 2025-3-26 06:56:34
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anesthesia
发表于 2025-3-26 11:06:31
Coupled Forms,eory. At first, electron tubes were used as amplifying elements. They were expensive and had very large power consumption. Filter circuits with only one amplifying element were therefore preferred, but they turned out to be sensitive for variations in resistance and capacitance values and particular
等待
发表于 2025-3-26 12:48:32
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LARK
发表于 2025-3-26 18:28:12
Wave Active Filters,cribed using waves. That is, instead of using the port current and voltage to describe a port, incident and reflected waves are used. The incident and reflected waves are a linear combination of current and voltage. Hence, we have performed a linear coordinate transformation from the variables curre