IDG Contributor Network: Filter this

IDG Contributor Network: Filter this

Few of us think about filters until we take our car in for its 50,000-mile service. Looking at the service invoice, there’s an air filter, oil filter, fuel filter, cabin air filter, transmission filter…

Sheesh, how many filters does this thing have?!

We may also think about them at family dinners. All of us have at least one relative who could use a filter. I’m looking at you, Aunt Sondra.

But most of the time, filters are out of sight, out of mind. Most people are gobsmacked when they discover we carry a dozen or more around in our pockets – and they’re not for pocket lint, Snapchat or Instagram.

The basics of RF filters

Filters, like antennas, are an increasingly important part of the networking mix.

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