This paper, which describes the optimization of a novel, constrained feed network for a space-based antenna array, is a joint effort between the Air Force Research Laboratory (AFRL) Antenna Technology Branch at Hanscom AFB and the Illinois Genetic Algorithms Laboratory (IlliGAL) at the University of Illinois at Urbana-Champaign. Recently, under the guidance and direction of the Air Force Office...

This paper presents the comprehensive analytical design and numerical performance evaluation of novel millimetre-wave (mm-wave) switched-beam networks, based on the Rotman lens (RL) array feeding concept. These passive array devices have been designed for operation in the 28GHz frequency band, covering the whole 18–38 GHz frequency range. The primary objective of the work is to conduct a thorou...

In this letter, we present a planar half-Luneburg lens antenna based on glide-symmetric dielectric structure. The proposed provides compact alternative to beamformers such as conventional Luneburg and Rotman lenses, well pillbox antennas. Importantly, demonstrate that the peak gain of is less than 1 dB lower antenna, despite being almost half size. can steer its beam in 50 <inline-formula xmlns...

Hossein Abouee-Mehrizi Joseph L. Rotman School of Management, University of Toronto, Toronto, M5S 3E6, CANADA, [email protected] Barış Balcıog̃lu Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, CANADA, [email protected] Opher Baron Joseph L. Rotman School of Management, University of Toronto, Toronto, M5S 3E6, CANADA, Opher.Baron@R...

The U.S. Army Research Laboratory (ARL) is currently pursuing key technologies for the integration of a low-cost communications and radar system that allows performing multiple functionalities with a single system and an antenna. These radar and communication functions include target acquisition, combat identification, weapons guidance, secure point-to-point communications, active protection, n...