The World’s ONLY High-Performance Solid-State RF Amplifiers Up To 350kW

You may have caught the story in the newest issue of LEADERS magazine, in case you didn’t… DELTA-SIGMA Inc. is truly the world leader in the design and manufacturing of high-performance Solid-State RF Power amplifier modules, subsystems and systems up to 350kW for Defense, Commercial and Scientific applications. Our modular designs elegantly scale from a 1kW subsystem to the industry’s highest power Solid-State turn-key systems. We are known for our low system cost, fast turnaround, reduced complexity and exceptional reliability.
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Wind-Profiler-article-cover-212x300 Impressive Achievement Utilized by NASA “The true sign of intelligence is not knowledge, but imagination.” Albert Einstein

NASA chooses DELTA-SIGMA Inc. for Wind Profiler – confirming that the developers at DELTA-SIGMA Inc. continue to prove they have both knowledge and imagination! The system detailed in this article is the only one in the world. Read the published article here…

Wind-Profiler-article-cover-212x300 Impressive Achievement Utilized by NASAWind-Profiler-article-cover-212x300 Impressive Achievement Utilized by NASA

Exciting News! High Power Smaller Than a Smart Phone!

  A palm-sized 1kW PA has been developed for Remote and Mobile applications that fits on an area the size of a Smart Phone!  It is extremely linear and efficient.  This is not normally possible in the same package. Up until now, efficiency was obtained by driving them into non-linear regions of the power curve.  Linearity relied on designing an inefficient amplifier.  Now both design goals can be achieved in a small package. It is expected that this power amplifier
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Introducing the THEIA Series: Efficient – Lightweight – Modular – Small Footprint – Removable

The THEIA SERIES 2000W Amplifier is the world’s lightest RF Power Amplifier for its output power.

                  THEIA-300x118 Introducing the THEIA Series:  Efficient - Lightweight - Modular - Small Footprint - Removable

DSI’s ground-breaking new system is a highly efficient, linear amplifier for very high power applications with a small footprint suitable for radar and communications applications.

The THEIA RF phase response is ideal for phased arrays where large numbers of individual elements are required.  It employs advanced aerospace materials and device technologies that permit optimum configuration with minimum space, lower weight, high efficiency, excellent linearity and better thermal characteristics than any other existing product.  Efficiencies are typically as high as 50% (AC to RF) across the range of frequencies.

The THEIA series have excellent matching and protection, a mechanical housing that provides for one man operation, eases of installation on airborne platforms, and linearity suitable for both conventional waveforms as well as advanced digital waveforms.

THEIA-300x118 Introducing the THEIA Series:  Efficient - Lightweight - Modular - Small Footprint - Removable

The system has a Solid-state class AB linear design (with full instantaneous bandwidth) and instantaneous broadband capability over an extended frequency range. Expect 50 Ω input & output impedances with built in extensive control, monitoring and protection circuits. This system provides both high reliability and ruggedness offering linearity-controlled loop for less than 0.5 dB compression at Max power.


Please contact Delta-Sigma Inc for additional information.

Remote Sensing under ice

SAR sensing using aircraft mounted radars flying 1,500′ above the ice can see nearly 10,000′ below the ice using special radar processing techniques.  The cross section through the ice during one flight has shown the unexpected existence of a lake well below the ice of Antarctica.  Organic contamination indicates the previous existence of plant life at these latitudes (with rolling hills and lakes).  This represents a substantial change in the temperature of the region from one which would support life
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Welcome to our New Ideas Pages

Welcome to our new depth of modularity.  Multiple compact high power units with new levels of linearity and efficiency.  Ask about available frequency ranges.  Consider the extreme efficiency in your mobile or remote applications. Please send us an email about your Surface, Ship-borne, Air, or Space project along with the power requirements and available space. We love challenges!