Phasor and Kepler announce successful LEO/ESA tests

The Phasor ESA uses beam-forming techniques.
The Phasor ESA uses beam-forming techniques.

Phasor and Kepler have announced successful tests between Kepler’s first in-orbit LEO nanosatellite and Phasor’s wideband electronically-steered antenna (ESA).

Kepler says its technology demonstration satellite, KIPP, launched in January, represents the first example of a wideband LEO satellite to have been auto-acquired, auto-tracked, and communicated with, by a commercial flat panel, electronically-steerable antenna.

Phasor’s new antenna successfully acquired, tracked and received transmissions from KIPP as it passed over Phasor’s test range facility in the UK.

Further tests will be performed in the coming days and weeks. Phasor says the industry milestone opens the door to a wide range of novel applications that can benefit from phased array antenna technology, which the duo intend to address.

Mina Mitry, Kepler CEO, said: “This is a big moment in satellite communications history. We are combining the capabilities of our ultra-low-cost nanosatellites together with Phasor’s high-performance, electronically-steerable antenna technology to unleash the potential of high-speed LEO Ku-band mobile connectivity.

“We have a number of customer applications for which we are deploying services today, which would benefit from Phasor’s technology,” Mitry added.

“Our customers, for instance, would benefit from the ability to dynamically and seamlessly switch between satellite networks to optimize traffic management. We also have customer use cases where mechanically actuated antennas are impractical because of their need to operate in extreme environments, so high-gain antennas without moving parts is a huge value-add for our customers.”

Dave Helfgott, Phasor CEO, said: “The Kepler-Phasor collaboration promises to bring to market real capabilities for a broad range of markets, including maritime, transportation, natural resources, defense, IoT and a wide variety of other on-to-move applications.

“This is an exciting beginning, and we look forward to many more milestones to come.”

For the test, Phasor’s antenna was able to track KIPP for its entire pass down to 20-degree elevation angle, demonstrating the viability of the 70-degree scan angle available from the Phasor electronically-steerable antenna.

The LEO to electronically-steered antenna transmission received a signal-to-noise ratio (SNR) in excess of 9dB, as was intended in the testbed design.

Kepler CTO, Wen Cheng Chong said: “Early results show us we have the capacity for around 20 Mbps to Phasor’s flat panel antenna with our 3U spacecraft. We are excited to further validate that capability in future testing.”

Like this story? Subscribe to our free monthly e-newsletter and get lots more.

You May Also Like