How Phased Array Antennas Work

摘要

Antennas come in a wide range of forms depending on the application, service, and frequency of operation. Some antennas you can't even see - like the four or five units in your smartphone. These antennas are single element devices, a metal structure, or printed circuit board (PCB) pattern that are connected to a receiver or transmitter by a transmission line. Now, another type of antenna is emerging to address the forthcoming exotic 5G cellular systems and other advanced wireless products like Wi-Fi routers. This antenna is the phased array: a group of antennas that work together to provide some significant benefits and capabilities not available with the simple antennas we know.