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Key highlights

The Integrated Ka/S-Band Radio is designed for LEO missions that require compact Ka-band high-throughput downlink plus full-duplex S-band TT&C in one radio package. It supports DVB-S2/DVB-S2X up to 256 APSK with ACM and a Ka-band user data rate up to 2.883 Gbps, supporting raw data rates up to 4 Gbps. The radio is suitable for high-resolution Earth observation, hyperspectral imaging and other bandwidth-intensive payloads where Ka-band capacity, efficient RF power conversion and compact mechanical integration are critical. Akash's Diamond Cooling® and GaN RF technology approach is especially relevant for high-frequency transmit chains where thermal margin and energy efficiency directly affect spacecraft power and payload design.

Applications

Ka-band satellite downlink, high-throughput LEO communications, Earth observation satellites, hyperspectral imaging payloads, smallsat constellations, S-band TT&C, CubeSat high-data-rate radios, DVB-S2X Ka-band transmitters.

Key features

• Ka-band transmit frequency: 25.5-27 GHz.
• Modulation: DVB-S2/DVB-S2X up to 256 APSK, including ACM.
• Symbol rate: 5-500 Msymbol/s in 1 kHz steps.
• User data rate: 5-2,883 Mbps; raw data rate: 4 Gbps.
• Maximum Ka-band RF output power: 35 dBm, with 40 dBm option.
• Input supply: 12-32 V; DC power: 30 W for 2 W RF linear power.
• S-band full-duplex Tx/Rx: Tx 2200-2290 MHz; Rx 2035-2110 MHz.
• S-band user data rate: 10 Mbps Tx and Rx; S-band transmit RF output: 30 dBm; S-band DC power: 5 W.
• Data input: Nano-D or Ethernet with 10G SFP; command and telemetry interface: RS-422.
• Radiation tolerance: >15 krad; shock and vibration designed for SpaceX launch.
• Temperature range: -20 deg C to +65 deg C; dimensions: 95 x 95 x 31 mm; weight: 560 g.

Gallium Nitride (GaN)-on-Diamond MMIC Power Amplifier - proprietary technology of Akash Systems.

Customization

Customization of the product is possible.

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Last updated: 2026-07-09