ReliaSat

Updated 17 Jul 2026
Manufacturer United Kingdom Listed
18 Products
6 Years Active
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About ReliaSat

ReliaSat is a UK-based manufacturer of high-frequency satellite communications technology, specialising in the design and production of RF millimetre-wave systems, transceivers, phased array antennas, and monolithic microwave integrated circuits (MMICs). Founded in November 2020, the company is a world-leading expert in Ka-band communication technology, offering solutions from L-band through to Q/V-band across the communications, satellite, aerospace, defence, automotive, and 5G markets.

In March 2023, ReliaSat significantly expanded through the acquisition of Arralis Technologies, absorbing its European intellectual property and manufacturing facilities. This acquisition repositioned the company as a focused Ka-band high data rate satellite specialist targeting both present-day and next-generation Low Earth Orbit (LEO) constellations. The engineering team is composed of experienced PhD-level engineers with contracts from clients including the European Space Agency (ESA) and the UK Space Agency.

ReliaSat offers both off-the-shelf products with short lead times and custom design services for large-scale projects. Its product portfolio spans active phased array beam steering antennas, wideband K/Ka-band transceiver modules, power amplifiers, low noise amplifiers, and millimetre-wave radar baseband boards — enabling high data rate satellite payload design, ground station infrastructure, in-flight connectivity, and LEO constellation communications at commercial price points.

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Products

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Flight-proven

The HPA11201721B is a space-qualified 10 W GaN on SiC MMIC high power amplifier covering 17-20.5 GHz, with 20 dB large-signal gain, over 25% PAE, and an integrated output power detector, supplied as a bare die for hybrid circuit integration.

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The HPA11201721QF is a space-qualified 10 W GaN on SiC MMIC high power amplifier in a 7x7 mm hermetically sealed surface-mount ceramic QFN package, covering 17-20.5 GHz with 20 dB gain and over 25% PAE.

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The FSN11200816QF is a low-phase-noise fixed-frequency microwave synthesizer covering a custom fixed frequency in the 8-16 GHz range, housed in a compact 25.4x25.4x6.35 mm surface-mount package with -103 dBc/Hz phase noise for SATCOM and radar LO applications.

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The PAN-8498-64-K is a 64-element K-band passive flat panel antenna covering 17-21 GHz with over 20 dBi peak gain and selectable LHCP or RHCP circular polarization, designed for satellite communications and 5G ground terminals.

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The SSPA11201721SS is a K-band GaN solid state power amplifier module delivering over 10 W saturated output power across 17-20.5 GHz from a single 25-28 V supply, with integrated power and temperature detection in a 63x60x25 mm package.

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The TR1000 is a complete K/Ka-band RF satellite transceiver module enabling direct interface with a modem or SDR for high data-rate Ka-band payloads. It supports TX at 17-21 GHz and RX at 27-31 GHz with waveguide flanges for high-reliability antenna connections.

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The UDC300 is a fully integrated standalone K/Ka-band uplink transceiver with up to 2.5 GHz instantaneous bandwidth, supporting ground segment and airborne applications with an on-board frequency synthesizer in a stackable enclosure.

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The PAN-5151-64-KA is a 64-element passive Ka-band flat panel array antenna covering 27-31 GHz with 20 dBi gain and selectable LHCP or RHCP circular polarization in a compact 6-layer PCB construction for satellite uplink ground terminals.

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The TR400 is a fully integrated Ka-band satellite transceiver with two programmable local oscillators covering TX 17.3-20.7 GHz and RX 27.5-30.5 GHz with up to 250 MHz instantaneous bandwidth. It is designed for high-speed LEO satcom, IoT, and 5G applications.

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Flight-proven

The UDC400 is a compact standalone Ka-band transceiver module for LEO satellite communications, offering 250 MHz instantaneous bandwidth, +/-0.28 ppm TCXO frequency stability, and SMP/SMPM RF connectors in an aluminum enclosure for SDR/modem integration.

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The LNA11202131SS is a multi-stage Ka-band low noise amplifier module covering 21-31 GHz with 34 dB gain and 2.5 dB noise figure, featuring enable/disable control and current and temperature monitoring in a fully enclosed housing with 2.92 mm RF connectors.

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The TR500 is a dual-transceiver Ka-band transponder module for LEO satellite payloads, providing 27 dBm saturated output power, sub-2.5 dB noise figure, and up to 250 MHz instantaneous bandwidth with on-board TCXO frequency stability of +/-0.28 ppm.

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The LEOLINK200 is a 1024-element Ka-band electronically steerable phased array antenna with +/-60 degree scan coverage, TX 27.5-31 GHz and RX 17.7-21.2 GHz, offering high sidelobe suppression for LEO satellite broadband connectivity on aviation, maritime, and mobile platforms.

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The LEOLINK64 is a Ka-band 64-element electronically steerable phased array antenna with +/-60 degree beam steering in azimuth and elevation, covering TX 27.5-30 GHz and RX 17.7-20.2 GHz for LEO satellite, aviation, and mobile SATCOM applications.

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The FSN11201632QFP is a programmable low-phase-noise microwave frequency synthesizer covering 16-32 GHz with -95 dBc/Hz phase noise at 10 kHz offset, in a compact 25.4x25.4x6.35 mm surface-mount package for Ka-band satellite and radar LO applications.

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The RADSP-22-A is a universal FMCW radar baseband processing board generating swept LO output at 20.9-23.9 GHz and supporting up to three receive channels, designed to simplify the development of millimeter-wave radar systems for space debris tracking, surveillance, and target detection.

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ReliaSat provides expertly engineered RF systems and subsystems for satellite communications, focusing on high data rate needs and offering modular, frequency-agile solutions.

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The PAN-185185-4-S is a compact 4-element S-band passive flat panel antenna covering 1.95-2.25 GHz with over 10 dBi gain and selectable LHCP or RHCP circular polarization for satellite TT&C, telemetry, and mobile communications applications.

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