Phased arrays
The RESA series – Requtech Electronically Scanned Antennas
Fully integrated phased array antennas
Decade of Excellence in Phased Array Innovation
Since 2011, Requtech has been at the forefront of phased array antenna design, investing in rigorous internal projects and theoretical studies that have positioned us as leaders in this specialized field. By 2017, Requtech initiated design and development of advanced phased array antennas optimized for Ka bands, achieving several milestone product designs that reflect our commitment to high-performance, resilient satellite communication solutions.
In 2018, Requtech collaborated with Linköping University of Technology and Forsway on a nationally funded project, “Array Antennas for SatCom Applications on Mobile Platforms.” This innovative project aimed to develop a high-performance comms-on-the-move (COTM) antenna system, capable of tracking LEO and MEO satellites with exceptional precision. By combining Requtech’s deep expertise in antenna technology, Forsway’s modem insights, and advanced tracking algorithms from the university, we developed an adaptable full-tracking module specifically designed to meet the demanding needs of COTM applications on mobile platforms. This project marked a key milestone in our mission to drive advancements in satellite technology for dynamic, mobile environments.
In 2021, our innovations caught the attention of the European Space Agency (ESA) and the Swedish National Space Board, leading to new funding for the development of a cutting-edge, mesh-based RESA terminal. This support highlights Requtech’s growing reputation for creating future-ready satellite communications solutions.
Advanced Technology for Next-Gen Satellite Communications
Requtech’s advanced product line includes our Electronically Scanning Arrays, collectively known as the RESA family. Designed to be compatible with the rapidly expanding LEO and MEO satellite constellations, our solutions bring unparalleled reliability and flexibility to SatCom on the Move (SOTM) applications. The RESA systems leverage our extensive experience in phased array technology and are built on a tile-based architecture using robust, industry-proven chipsets. This design allows for significant customization, ensuring the technology meets diverse SWaP (Size, Weight, and Power) and data throughput requirements across various applications.
The RESA technology core is versatile, enabling integration across multiple platforms, including manpacks, land-based systems, marine vessels, and airborne platforms. The RESA is engineered as a lightweight, solid-state solution. It offers full-duplex communication with fast, precise multi-beam operation and rapid switching and scanning capabilities.
RESA systems can be provided at varying levels of integration, from standalone arrays to fully integrated terminals with embedded modems, ACUs, beacon receivers, GPS, IMUs, and other components. In addition, RESA can seamlessly integrate with cellular networks, providing robust, multi-channel communication for users across a range of environments.
Flexible Solutions for Diverse Needs
The RESA product family is available in both Ka and Ku bands, addressing diverse frequency requirements for different applications. To provide even more tailored solutions, the RESA series is offered in multiple sizes—S, M, and L—designed to meet the needs of ultra-portable solutions up to fully installed base applications.
Requtech’s RESA series continues to evolve, with a roadmap that includes further enhancements in size, weight, and power efficiency, along with integration options for new satellite constellations as they become available.
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Frequently Asked Questions
A phased array antenna is an advanced antenna system that uses multiple individual antenna elements, which are electronically controlled to direct the beam of radio waves in a specific direction without physically moving the antenna. This technology is widely used in radar, satellite communications, and wireless networks.
A phased array antenna works by adjusting the phase of the signal at each individual antenna element, allowing the combined signal to be steered in a desired direction. This steering is achieved electronically, which enables rapid changes in direction and beam shaping without mechanical movement.
The advantages of phased array antennas include rapid beam steering, high reliability, the ability to form multiple beams simultaneously, and enhanced signal strength and quality. They are highly effective in applications requiring dynamic and precise control of signal direction, such as in radar and telecommunications.
Phased array antennas are used in a variety of applications, including radar systems, satellite communications, 5G wireless networks, missile guidance, and even medical imaging. Their ability to dynamically steer beams makes them ideal for scenarios requiring accurate and agile signal control.
Compared to traditional antennas, phased array antennas offer superior performance in terms of beam steering, flexibility, and speed. While traditional antennas require physical movement to change direction, phased array antennas achieve this electronically, making them faster and more reliable in dynamic environments.
There are two main types of phased array antennas: passive and active. Passive phased arrays rely on a central transmitter or receiver, with signal phases adjusted across the array. Active phased arrays, on the other hand, have individual transmitters or receivers at each antenna element, allowing for more powerful and flexible signal processing.
Beamforming in phased array antennas is achieved by controlling the phase and amplitude of the signal at each antenna element. By precisely adjusting these parameters, the antenna can focus the signal into a narrow beam, which can be directed in any desired direction, optimizing signal strength and reducing interference.
A fully integrated terminal like our RESA is designed to be a simple plug-and-play solution with our software we have made the complex antenna a simple and user-friendly communication terminal.
In 5G networks, phased array antennas are crucial for enabling high-speed, low-latency communication. They allow for precise beamforming, which improves signal quality and reduces interference, enabling more efficient use of the available spectrum and better coverage in densely populated areas.
Your organization can benefit from phased array antennas by enhancing communication reliability, increasing data transmission speeds, and improving signal coverage. Whether for radar, satellite communication, or modern wireless networks, implementing phased array antennas can lead to significant improvements in performance and efficiency.