Remembering Antennagate

Remembering Antennagate

Posted on Jul 31, 2017 in ResourcesRF Design Articles

Remember Antennagate? In 2010, with the release of the revolutionary new iPhone 4 came problems with the new external antenna that wrapped around the sides. There was a gap between the metal pieces of the antenna that when bridged by the user’s hand would detune the antennas and degrade performance. Sometimes the degradation was so […]

VSDs Radiate H-Field Noise in LF Range

VSDs Radiate H-Field Noise in LF Range

Posted on Dec 14, 2010 in ResourcesRF Design Articles

Problem: Client has sensitive imaging equipment located in a newly-designed “green” building that does not operate properly in its designated location, but operates fine in other areas of the room. Seems you can’t do anything lately without a reference to Green technology.  That was the driving force behind a recent client’s crisis. Their customer had […]

FCC Part 15 Intentional Radiators

FCC Part 15 Intentional Radiators

Posted on Sep 27, 2010 in ResourcesRF Design Articles

We get this question many, many times from our clients. Essentially, they want to make a system that transmits data from point A to point B but don’t know what range they can count on, and how much it will cost to certify, and if they need a license. Overview of the Rules Governing Intentional […]

Practical Electromagnetic Compliance

Practical Electromagnetic Compliance

Posted on Sep 21, 2010 in ResourcesRF Design Articles

This article gives some practical tips and observations on Electromagnetic Compliance (EMC) as applied to printed circuit boards. Most EMC design courses are based on early work in the EMC field and tend to be either outdated or short on application ideas that have been proven to work in practice. Some definitions: Loop area Loop […]