Delta-Sigma, Inc.  Riverside, California  ·  since 1995

Breaking the Limits of RF Innovation

DSI turns decades of engineering excellence into breakthrough RF amplification and thermal management components and products that power radar, communications, EW, edge compute, medical imaging, and more, expanding what’s possible in downstream system innovation.

The result is compounding innovation across defense, aerospace, space, science, and industry, where every system built on DSI out-innovates the competition, outpaces the adversary, advances the science, and always stays ahead of the next unknown challenge.

1 W – 25 kW 500 kHz – 6 GHz 5+ octaves per unit 350 kW peak delivered CAGE 02XJ0
The value

Breakthroughs upstream. Innovation downstream.

Everything DSI ships traces to a short list of physics wins: amplification that does not distort, switching at nanosecond speed, and heat that leaves the chassis. Systems inherit those wins the day the amplifier drops in, and keep inheriting as requirements move. Four pillars carry the story.

Pillar 1

Technology that breaks through traditional limits

Breakthrough RF and thermal innovation that changes what is possible. Filterless bandwidth across five-plus octaves, distortion-free linearity, phase noise of −110 dB at 0.1 Hz, nanosecond pulsing and polarization switching, and heat dissipation past 250 W/cm².

Pillar 2

Enabling unparalleled downstream innovation

Fielded systems gain it as a drop-in; clean sheets start beyond where others end. Comms that live inside the noise, radar that sees farther and finer, edge compute dense enough to think locally, and signaling only DSI makes possible.

Pillar 3

Outperform. Outlast. Outclass.

Systems built on DSI dominate the axes that decide competitions and deployments: protocol range multiples, more power in less rack, and failure rates historically near zero from the ocean floor to orbit.

Pillar 4

Already ahead of the next unknown challenge

New threats land as software, not redesign. Thermal and power headroom banked today becomes tomorrow’s capability growth, and DSI builds no end systems and bids no primes, so your program is never our competition.

The platforms

Two product lines. One foundation.

GhostLink and CryoShield work on their own or together. One removes the reason filters exist. The other removes the reason chassis are large.

DSI GhostLink | Pure Amplification

Amplifier platform

Pure amplification behind 200+ SKUs, 1 W to 25 kW. The waveform you send is the waveform that radiates.

GhostLink
DSI CryoShield | Cool to the Core

Thermal management

Cool to the core. Embedded in every solid state, available standalone, and the reason chassis got small.

CryoShield
Enabling unparalleled downstream innovation

Capabilities that only show up once it all lands in one design.

Each of these exists in isolation somewhere in the industry. Putting them all in one drop-in amplifier platform, with CryoShield underneath it, opens the door to unparalleled downstream innovation: comms, sensing and electronic-warfare concepts that prior amplification could not support.

Linearity

Negligible input-to-output delta

Pure amplification with a negligible difference between input and output envelopes. Send any waveform or protocol and it radiates as sent.

Phase noise

−110 dB at 0.1 Hz offset

An order of magnitude past the −110 dB at 1 Hz benchmark. Cleaner returns, tighter geolocation of distant or closely spaced targets.

Pulsing

Nanosecond rise and fall

Nanosecond-scale RF bursts with sharp edges. High-resolution pulse compression, fast time-of-arrival, and pulse shapes that were not previously available.

Polarization

Horizontal to vertical, near-instant

Polarization switching at the nanosecond timescale. That enables 3D waveforms, polarization-encoded channels, and polarimetric radar modes.

Bandwidth

Five-plus octaves in one unit

Full bandwidth, extended range, simultaneous multi-band operation, and real-time switching across waveforms and modulation types.

Integration

Transmit-side upgrade only

Extend the range of an existing protocol without touching the waveform, the protocol, or the receiver. The fielded radio stays the fielded radio.

Heat removal

>250 W/cm², air-cooled

Nanomaterial heat spreading pulls concentrated heat off the die and across the chassis. Hotspots gone, thermal stress down, MTBF up.

Density

Same power, a fraction of the rack

Up to 84% less footprint at equal output, or roughly six times the power in the space you already own. Higher compute density where the mission thinks.

Mission proven

Same 16 kilowatts. 84U of rack became 13U.

An over-the-horizon radar amplifier we originally delivered in an 84U footprint has been refactored to 13U with no loss of output. The best competing solution needs two 8 kW amplifiers and 42U to get there. Drawn to scale below.

84U Original DSI design
16 kW
Two full-height equipment racks holding the original 16 kilowatt over-the-horizon radar amplifier

Two full bays. This is what 16 kW used to cost you in floor space.

42U Best competitor
2 × 8 kW
A competitor's equipment cabinet holding five stacked amplifier drawers

Two amplifiers, one cabinet, and you are still paying 42U for the same output.

13U DSI refactor
16 kW
The refactored 16 kilowatt amplifier in a 13U chassis, small enough for one person to handle on a bench

85% smaller than the original. 70% smaller than the competitor. Or keep the 84U and put roughly 100 kW in it.

≤84%form-factor reduction
1.5–2.5×power vs. best competitor
3.8×heat reduction, 1 kW amp
~750W/mK CryoShield
Three decades fielded

Past performance the hard way.

Defense primes, aerospace primes, universities and research organizations, with concentrations across the AUSCANUKUS nations. A few examples of where the hardware already lives.

Remote science

Profiler and sounder backbones

The PEGASUS family carries wind-profiler and sounder installations on remote, power-constrained sites with no chance of a service call. Efficiency and reliability were built for exactly that.

Radar

Over-the-horizon at full power

The 16 kW OTHR amplifier above shipped, then came back for a refactor that cut 84U to 13U at the same output. The best competing approach still needs 42U.

Every domain

Air, sea, subsurface, ground, mobile and space

Already flying, floating and sitting on remote sites, from tactical comms to environmental networks to space programs. Fielded is the operative word.

30 years of past performance

Start where you are

Four ways in.

Defense

Defense & aerospace builders

Win the shoot-off with DSI inside your system.

Start a design-in evaluation

Government

Government & allied missions

Capability you can spec and proof you can cite. Ask your integrator what’s inside.

Request a capability briefing

Science

Science & research

New amplifier, same system, longer life, installed by us.

Plan a retrofit or site survey

Commercial

Commercial & industrial innovators

Break your thermal ceiling, from data centers to medical imaging.

Request qual data and samples

Start here

Tell us what the amplifier has to do.

Band, power, duty cycle, the envelope it has to fit, and the environment it has to survive. We will tell you whether it maps to something we have already built, an adaptation of it, or a clean sheet, and roughly what that takes.

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