Key highlights

The EnduroSat S-Band Antenna Commercial is a flight-proven CubeSat S-band patch antenna tuned to the 2025-2110 MHz commercial space-operation allocation. Producing more than 7 dBi of gain across its operational bandwidth – a 20% improvement over the previous generation, per EnduroSat – it strengthens uplink and command-link margins for small satellite operators without growing the antenna footprint.

Polarization is selectable between right-hand and left-hand circular, letting mission teams match the ground-segment configuration and keep reception steady through spacecraft attitude changes. A 70-degree half-power beamwidth provides wide angular coverage, while the 77.4 g unit handles up to 4 W of RF power and ships in X/Y side-panel or Z face mounting configurations for straightforward integration with an S-band transceiver.

Applications

Commercial S-band uplink and command reception on CubeSat and SmallSat missions
High-speed S-band communication in the 2025-2110 MHz space-operation band
TT&C antenna paired with onboard S-band transceivers
Constellation and single-satellite missions needing selectable polarization to match ground stations

Key features

High gain:
7+ dBi across the operational bandwidth
Commercial S-band coverage:
Operates from 2025 to 2110 MHz.
Selectable circular polarization:
Choose right-hand or left-hand circular polarization to suit the link design.
Wide beamwidth:
70-degree HPBW maintains the link across pointing offsets.
Configurable mounting:
X/Y or Z CubeSat mounting variants for flexible panel placement.
4 W RF power handling:
Supports transmit power up to 4 W.
Low mass:
77.4 g total mass.
Flight proven:
Described by EnduroSat as a flight-proven S-band patch antenna, qualified under its space-qualification program.

Flight heritage

The EnduroSat S-Band Antenna Commercial has achieved flight heritage.

Testing & qualification

The EnduroSat S-Band Antenna Commercial is compliant with the CubeSat standard.

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Last updated: 2026-06-12