Radar system with enhanced angular resolution based on a novel frequency scanning reflector antenna

Millimeter-Wave High-Gain Frequency-Scanned Antenna Based on Waveguide Continuous Transverse Stubs

“…Millimeter-wave (MMW) antenna arrays with beam steering capability are highly desired in many applications such as radar, imaging and high-speed communications [1]- [3]. There are several established solutions to realize such high performance antenna arrays with high beam-pointing precision.…”

Design of multi-beam antenna based on Rotman lens

“…Multi‐beam scanning capability is the most basic requirement for antennas in several applications, such as multi‐target tracking radars, electronic countermeasures and detection, and wireless communications. There are currently two types of beam scanning methods: mechanical and electrical . Mechanical scanning was the first approach used to achieve beam scanning by rotating antenna base to change beam directions.…”

“…There are currently two types of beam scanning methods: mechanical and electrical. 1 Mechanical scanning was the first approach used to achieve beam scanning by rotating antenna base to change beam directions. However, mechanical scanning antenna presents some obstacles, such as heavy weight, slow scanning speed, large inertia, and too frequent rotation of the antenna base, which causes the limitation of its application.…”