Applications: Passive Filters - Cairo University 2020. 8. 1. · Dr. Mohamed Refky. Introduction Dr. Mohamed Refky 4. Introduction Dr. Mohamed Refky 5. Introduction Dr. Mohamed Refky

Passive Filters II

Dr. Mohamed Refky Amin

Electronics and Electrical Communications Engineering Department (EECE)

Cairo University

elc.n112.eng@gmail.com

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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• 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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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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