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RF Design Articles

July 25, 2019 In Company News, Resources, RF Design Articles By Sanders RF Consultants

Remembering AntennaGate

Apple iPhone 4

Apple iPhone 4

iPhone 4 Antenna Problems

Remember Antennagate? In 2010, with the release of the revolutionary new iPhone 4 came problems with the new external antenna. This antenna consisted of a metal band which wrapped around the outer sides. A gap between the metal pieces of the antenna, when bridged by the user’s hand, would cause the antennas to detune and degrade performance. Sometimes the calls dropped due to the signal loss.

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testing circuit board
September 27, 2010 In Resources, RF Design Articles By Sanders RF Consultants

FCC Part 15 Intentional Radiators

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 Radiators

The FCC has made provisions for unlicensed transmitters throughout the radio spectrum. You can operate just about anywhere, but there are restrictions on the field strength, type of emission, and duty cycle that you need to be aware of before planning a system.READ MORE