Antennas & Propagation
Whether designing antenna arrays for the next generation of wireless communication or studying phenomena in space with radio telescopes, ECE researchers are improving the methods and technology of signal propagation to transmit and receive information clearer, farther, and more accurately.
Steven W. Ellingson
Amir I. Zaghloul
Antenna arrays are capable of producing highly directive beams, a property which enables radars, communication systems, and high-resolution imaging. ECE researchers developed an array synthesis technique, which is particularly suitable for very large arrays for the 5G wireless communication systems. These arrays can meet design requirements such as half-power beamwidth (or directivity) and side lobe level without any limitation. The synthesis method provides a general approach to finding element currents.
Future millimeter-wave mobile communications networks will likely employ beamforming arrays, which contain hundreds to millions of elements at both the transmitting and receiving ends. A principal difficulty in such networks is initiating and maintaining beam alignment, a problem exacerbated by blockages along the line of sight. ECE researchers developed a technique to construct a map indicating the likely locations and geometry of blocking objects.