Key highlights

EnduroSat’s X-Band 8x12 Patch Array Antenna is the highest-gain member of the X-band antenna family, using a 96-element patch array to deliver more than 24 dBi of gain for high-throughput downlink from data-intensive SmallSat missions. A tight 8° × 11° half-power beam width focuses radiated power toward the ground station, supporting high-rate transmission of large Earth observation and imaging datasets.

The array operates over 8000–8400 MHz with an SMA RF connector and is supplied in right-hand circular polarization. It handles up to 4 W of RF input across a −40 to +125 °C range and is qualified for a 5-year mission lifetime under ESA ECSS-E-ST-10-03C and NASA GEVS GSFC-STD-7000A, including random and sinusoidal vibration, shock, and thermal cycling. Measuring 254 x 172 mm at 400 g, it is intended for larger SmallSat and microsatellite platforms.

Applications

High-throughput payload data downlink for SmallSats and microsatellites
Earth observation, SAR and hyperspectral missions with very large data volumes
Missions requiring maximum X-band gain from a fixed (non-steerable) array
LEO missions requiring a space-qualified high-gain circularly polarized antenna

Key features

Configuration:
8x12 (96-patch) array
Gain:
>24 dBi over operating bandwidth
Half-power beam width:
8° × 11°
Frequency range:
8000–8400 MHz
Polarization:
RHCP (fixed — no choice of rotation direction on this size)
RF connector:
SMA
RF power handling:
up to 4 W
Mounting:
X/Y (preferred for larger antennas) or Z
Operating temperature:
−40 °C to +125 °C
Mass:
400 g
Dimensions:
254 × 172 × 6 mm
Qualification:
ESA ECSS-E-ST-10-03C and NASA GEVS GSFC-STD-7000A; 5-year mission lifetime

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Last updated: 2026-06-27