Passive Filters II
Dr. Mohamed Refky Amin
Electronics and Electrical Communications Engineering Department (EECE)
Cairo University
http://scholar.cu.edu.eg/refky/Dr. Mohamed Refky 1
OUTLINE
• Introduction
• Band-pass and Band-stop Filters
• Double tune filter
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Introduction
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• A lowpass filter passes low frequencies and stops high
frequencies.
• A highpass filter passes high frequencies and rejects low
frequencies.
• A bandpass filter passes frequencies within a frequency band
and blocks or attenuates frequencies outside the band.
• A bandstop filter passes frequencies outside a frequency band
and blocks or attenuates frequencies within the band.
Type of the filter
Low pass 0
High pass 0
Band-pass 0 0
Band-Stop
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Introduction
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Introduction
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Introduction
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Band-Stop FilterBand-Pass Filter
Introduction
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Band-pass and Band-stop Filter
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Band-pass and Band-stop Filter
Valid only at resonance
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1. Sketch the response curve for the load voltage of the filter shown
Example 7
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Example 8
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Double tuned filter
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Double tuned filter
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Double tuned filter
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Double tuned filter
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Double tuned filter
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Double tuned filter
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Double tuned filter
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Double tuned filter
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Example 9
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Example (10)
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