Mitsubishi Electric array antenna achieves high-precision beam scanning

Mitsubishi Electric Corporation (TOKYO:6503) has announced its development of the REESA (Rotational Element Electronically Scanned Array) antenna, a small, low-cost array antenna that achieves high-precision beam scanning by electronically rotating antenna elements individually, the company said.

The REESA antenna is suitable for airport radar systems, mobile satellite communication systems and possible new applications such as microwave-based industrial heating and mounting on drones for long-distance data transmission. Commercialization of the product is targeted at 2020.

Airport radars and mobile satellite communication systems conventionally use mechanically driven parabola antennas or AESAs, which electronically scan antenna beams with RF modules. The size and weight of the drive mechanism can be a problem in the case of parabolic antennas, while AESAs require expensive RF modules for each antenna element and achieve only limited accuracy in phasing required for high-precision beam scanning. For the full text, visit: