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Northrop Grumman’s FORTITUDE is a gallium nitride (GaN) radio-frequency chip designed to combine fast switching and signal filtering in one device. The company’s datasheet lists subnanosecond switching and an operating range from kHz to 20 GHz. The often-repeated claims of three times more power and 20 times better signal quality come from Northrop Grumman as reported by Interesting Engineering; the datasheet reviewed here does not include those comparisons or the measurement details needed to assess them.
What is the FORTITUDE GaN chip?
FORTITUDE is a Northrop Grumman RF component intended for commercial and defense systems. Rather than serving as a consumer chip or a complete radio, it is designed to handle two signal-processing tasks—switching and filtering—within one device. Northrop Grumman describes it as a way to guide electrical signals while suppressing interference. The company’s FORTITUDE datasheet and microelectronics product page present it as a component for larger systems.
GaN, or gallium nitride, is the semiconductor material at the heart of the device. Northrop Grumman says FORTITUDE uses patented multilayer “superlattice” technology: stacked, ultra-thin layers intended to control electron flow, reduce energy loss and heat, and support higher-frequency signals. The datasheet also describes combining GaN power characteristics with silicon architecture. These are manufacturer explanations; the sources cited here do not include an independent technical paper or test report.
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Interesting Engineering’s October 2, 2026 report attributes both comparisons to Northrop Grumman: three times more power and 20 times better signal quality. Those figures are not stated in the Northrop Grumman datasheet reviewed for this article. The available sources do not identify the comparison baseline, measurement method, test conditions, or a signal-quality metric. They should therefore be read as company-reported claims, not as independently verified performance results.
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The datasheet does make a different comparison: Northrop Grumman says FORTITUDE carries ten times the charge of standard GaN chips. That, too, is a manufacturer claim; the cited material does not define “standard” or supply the underlying test conditions.
How can one chip switch and filter signals?
Switching controls signal paths
A switch controls whether a signal passes through a path or is redirected. In an RF system, rapid switching can help control when or where signals travel. Northrop Grumman lists subnanosecond switching speeds for FORTITUDE, but the datasheet extract does not specify the test method or operating conditions behind that figure.
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Filtering suppresses unwanted frequencies
A filter selects or suppresses parts of a signal’s frequency content. That can help limit interference or unwanted signals reaching the next part of a system. Northrop Grumman says FORTITUDE performs filtering and switching simultaneously. Combining these jobs may reduce the need for separate components in some designs, but the available reporting does not establish a universal component-count reduction.
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| Item | What the cited material says |
|---|---|
| Operating frequency range | Northrop Grumman’s 2026 datasheet says it supports frequencies from kHz to 20 GHz; test conditions are not stated in the cited extract. |
| Switching speed | Subnanosecond switching speeds, according to Northrop Grumman’s 2026 datasheet; measurement conditions are not stated in the cited extract. |
| Integrated functions | Switching and filtering in one device, according to the manufacturer. |
| Named application areas | The datasheet names radar, satellite communications, and 5G. These are application areas, not evidence of a specific deployment. |
| Package size | Interesting Engineering describes it as roughly the size of a grain of rice; the datasheet reviewed does not provide package dimensions. |
Interesting Engineering also mentions GPS, electronic warfare, and future 6G as possible application areas. These are prospective uses, not confirmation that FORTITUDE is deployed in those systems. Northrop Grumman broadly positions the chip for defense and commercial RF applications.
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What is not yet established?
The cited materials do not provide independent test results, manufacturing yield or cost, or evidence of field deployment. They also do not give a complete basis for comparing FORTITUDE’s power output, thermal performance, dimensions, or signal quality with other RF chips. Without matching test conditions and a defined baseline, the headline comparisons cannot establish how it would perform against a particular competing component in a real system.
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