The UK government's Defence Evaluation and Research Agency (DERA) has launched itself into the commercial world with an ambitious bid to force 3G operators into sharing phone antenna. Different frequencies mean operators currently have to leave a...
Wi-Fi, the most common wireless technology today, is hugely popular for creating networks with a radius of about 300 feet for home use and in a few public places such as bookstores, cafes and airports.
It's not clear, though, how well the technique will work against high-powered readers that have been demonstrated to read RFID chips from about 160 feet away. Over the last year, opposition to the idea of implanting RFID chips in passports has...
The tags - which rely on electromagnetic propagation for communication - can be read about 30 feet away. The tag reader can be only about three feet away. The antenna's length is about 3.5 inches. RFID specialist Impinj has devised a way to make it...
Menezes said Wavion solves these issues by using a version of Mimo, or multiple input and multiple output technology, which uses multiple antenna to send and receive several data streams over the same channel simultaneously.
Customers will only be able to use their phones above 10,000 feet, which will prevent them from connecting to domestic mobile networks instead. Planes will be fitted with a pico cell — a GSM antenna in the ceiling of the aircraft which allows...