Электрические фильтры

Electric filter - CHP

An electric filter is a frequency converter that passes signals whose spectra are located in a certain frequency band with a slight attenuation (passband of the PP filter), and passes signals outside this frequency range with a large attenuation (bandpass of the PN filter).

Electric filter - CHP

Comparative characteristics of Butterworth and Chebyshev filters

1. Chebyshev filters have the maximum slope of the characteristic with the same requirements among all polynomial filters (higher selectivity).2. Butterworth filters distort the signal less (AF and PF distortion) due to the monotonic characteristic in the PP

Filter transfer function - IF transfer function

where m is the filter order

Filter synthesis order

1. According to the specified requirements for the filter, the requirements for the low-frequency prototype are formedH4 - prototype - low-pass filter, other filters are calculated based on its characteristics

Converting a low-pass filter circuit to a high-frequency filter

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