New Taoglas antennas for robotics, autonomous autos

Taoglas introduced multiband active GNSS antennas designed for applications that require critical high-accuracy positioning and timing, including autonomous driving and precision farming. Both the MagmaX2 AA.200 and the Colosseum X XAHP.50 complement the high-precision GNSS range from Taoglas.

“Safety standards for autonomous vehicles (UAVs, robotics and vehicles) and precision agriculture are an ever-evolving arena,” said Ronan Quinlan, co-CEO and founder of Taoglas. “It is becoming increasingly clear, however, that high-precision positional accuracy is critical to both. At Taoglas we are continuously developing our GNSS antennas to achieve the best possible location capabilities, but in lighter, more compact structures compared to larger counterparts that are already on the market. We study the effects of the antenna on the actual positioning performance of your system, not just on the antenna itself. “

The MagmaX2 AA.200. (Photo: Taoglas)

The MagmaX2 AA.200 is designed for space and weight constrained applications like robotic lawn mowers, Quinlan said. Embedded antenna versions are also available.

The AA.200 is a low profile, multiband, active magnetic GNSS antenna for most major constellations including GPS (L1 / L2 / L5), GLONASS (G1 / G2 / G5), Galileo (E1 / E5a / E5b), and BeiDou (B1 / B2). It has excellent gain and good radiation pattern stability, resulting in reliable GPS correction in areas with weaker signal strength.

A position accuracy of more than 60 cm (DRMS) can also be achieved without RTK correction services. With today’s multiband GNSS receivers and RTK services in the field, accurate positioning up to 1.4 cm has been demonstrated.

The Colosseum X XAHP.50 antenna. (Photo: Taoglas)

The Colosseum X XAHP.50 is a small dome antenna in geodetic quality, which is suitable for a vehicle roof or mast bracket. “Every element and aspect of antenna performance was optimized during the design of this antenna,” said Quinlan. “This includes many deeply interlinked RF parameters for really accurate positioning at the centimeter level compared to conventional meter-only systems. Phase center variation, group delay, multipath rejection, and axial ratio versus angle become critical considerations and performance goals. “

The XAHP.50 is designed to operate with incredibly high precision across the entire GNSS spectrum. A position accuracy of the submeter of more than 55 cm (DRMS) can also be achieved without the use of RTK correction services. This enables the user to have higher location accuracy as well as stable position tracking in urban environments.

The XAHP.50 provides excellent performance across the antenna bandwidth and its design has uniform gain across the hemisphere, giving it an excellent wide axial ratio which in turn makes it resistant to multipath rejection and excellent phase center stability. With today’s multiband GNSS receivers and RTK services in the field, accurate positioning up to 1.4 cm has been demonstrated.

Antenna development

“In the design phase, we simulate with electromagnetic analysis software and optimize every parameter,” said Quinlan. “As soon as we are satisfied with the results, we build our prototypes and test in scientifically controlled chamber and test environments that have been validated by the European Space Agency with repeatable GNSS signals.

“We then move on to field testing in open air and non-line of sight environments to verify actual performance with today’s state-of-the-art receiver systems from leading companies like u-blox and Septentrio.

In addition, every single antenna that comes off our production line goes through rigorous in-line sensitivity testing to ensure consistent validated performance. We take our commitment to quality and safety very seriously in the coming age of autonomous operations, ”Quinlan concluded.

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