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Vireo

Multi-beam Communications Payload

Overview

A complete solution for uplink and downlink opperations from LEO, the Vireo payload supports to 8-beam opperation with independently steerable, shapable beams. Jam resistant and reconfigurable on-orbit to meet evolving threats.

High-Capacity Communications

Payload design minimizes the number of unique subassemblies across the aperture and constellation, further lowering cost and complexity.

Large-Constellation Ready

Dedicated frequencies for transmit and receive enable simultaneous uplink and downlink to every user.

Full-Duplex Operation

Divide RF power among beams, flexibility defining per-beam allocation to provide improved quality of service.

Fast Beam-Hopping

Near-instantaneous beam-hopping further divides each beam in time, allowing capacity to
be shared and focused across the field of view, maximizing throughput and quality of service to specific regions.

Modular Architecture

Architecture meets requirements for element spacing, power levels, and environmental performance to commercial, civil, and defense
applications.

Jam Resistant

Apply pattern nulls to cancel interfering signals, improving signal-to-noise ratio.

Key Features

Multi-Beam Operation

Up to 16 independently steerable beams allow for maximum frequency reuse and throughput for seamless connectivity with many simultaneous users.

Fast Beam-Hopping

Near instant beam hopping further divides each beam in time, allowing capacity to be shared and focused across the field of view maximizing throughput and quality of service to specific regions.

Full-Duplex Operation

A dedicated box for transmit and another for receive enable simultaneous uplink and downlink to every user. Additional boxes increase the total number of beams and polarizations.

Software-Defined Flexibility

The payload is controlled by a rich software experience that controls beam planning, steering, shaping, and hopping, as well as power optimization that can be updated dynamically and combined with any onboard baseband processor.

Commercial, Civil, and Defense Applications

Providing options that support both commercialand defense Ka-band frequencies,Vireo is uniquely suited for a wide range ofmissions across multiple domains

LEO, MEO, and GEO Configurations

Vireo offers a scalable architecture for multiple orbits, meeting unique customer requirements for element spacing, power levels, and environmental performance.

Product Specifications

Frequency
Tx 20.2 GHz to 21.2 GHz
Rx 30 GHz to 31 GHz
Elements
288
Beams
Up to 4
Aggregate EIRP
36 dBW aggregate at boresight and at P1db

G/T
-3.5 dB/K at boresight and
300 K scene temperature
Scan Angle
58.5°

Polarization
RHCP or LHCP
(Switchable on orbit)
Beam "Dead Time"
~  1 us
Minimum Beam Dwell Time
~  1 us
Digital Interfaces
Ethernet, Spacewire, RS-422
Peak DC Power
Rx ~87.7W
Tx ~198.6W
Size
Rx 9.1”  L x 5.1” W x 7.8” H
Tx 12.8”  L x 6.1” W x 8.6” H
Mass
Rx 5.28 Kg
Tx 11.61 Kg
Lifetime
7 years in LEO (@ 1000 Km)

Baseplate Temp.
-24 to 61 °C (operational)

System Architecture

Additional Resources

A full suite of documentation is available to support integration of Vireo into your mission. Our team stands ready to support you. Contact us for technical specifications or to discuss your programming challenges.

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