Microstrip Filters deliver small size at high frequencies

Posted by Peter Matthews on Nov 7, 2018 4:47:46 PM

When selecting a filter implementation one factor that is common across all frequencies is optimizing the size of the filter given the application and the required performance.

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Topics: Filter, Bandpass, mmWave, Microstrip

Filter Shape Factor and Selectivity

Posted by Peter Matthews on Oct 26, 2018 4:26:00 PM

An ideal filter

The Ideal Filter would have unit gain (0dB) in its pass band and a gain of zero (-infinity dB) in its stop band. Between pass band and stop band there would be no indecision and would transition from 0dB to -infinity dB asymptotically. It would pass only the required frequencies without adding or subtracting anything from the signal and like a very discrete and fastidious butler we would not see it - just its perfect management of the frequencies in its care.

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Topics: Filter, Bandpass

RF Filter Terminology and specifications.

Posted by Peter Matthews on Sep 10, 2018 10:59:41 AM

This document is designed to act as a quick reference on some terms that are used to discuss filter technology.

There are four key Filter behaviors that sort them into types: Low Pass, High Pass, Band Pass and Band Stop.

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Topics: Filter, Bandpass, Lowpass, Highpass, Bandstop

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