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China Develops Technology That Blocks Enemies and Protects Allies With “Safe Zone” in Electronic Warfare

Published on 03/08/2025 at 13:54
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Chinese Electronic Warfare Technology Uses Drones to Create a “Calm Zone” Where Allies Maintain Communication Even Under Strong Interference.

Chinese researchers announced the development of a new electronic warfare (EW) system with an important differentiator. It would be capable of interfering with enemy electronic systems without affecting allies, thanks to the creation of a protected communication zone.

The most important aspect is the central concept of the innovation. Inspired by the calmness of a hurricane’s eye, the technology creates a “safe space” in the middle of interference.

In other words, even under electromagnetic attack, allies would be able to maintain normal communication while enemy systems would be neutralized.

This protected zone does not occur by coincidence. Drones operate in pairs and perform a coordinated action. One emits jamming waves against the targets.

The other, at the same time, emits an opposite signal that cancels the interference precisely at the point where allied forces are located.

This technique, according to the researchers, involves precise control of various signal parameters, such as waveform, amplitude, phase, and timing.

The goal is to manipulate the electromagnetic environment surgically, unlike traditional methods that affect everything around.

Operation Based on Twin Drones

The operation requires the drones to work in sync. While one blocks adversarial systems with intentional noise, the other sends a calculated signal to neutralize that interference only at the desired point. Thus, an area is created where signals cancel each other out, maintaining communication for allies.

Therefore, the differentiator lies in the precision. Instead of covering large areas with indiscriminate interference, as older systems did, the new model focuses on specific targets and spares friends.

This type of approach represents a significant change compared to conventional systems, such as those used in the US EA-18G “Growler” aircraft or the Russian “Khibiny” system.

They also use directed interference, but still cannot guarantee safe zones with this level of control.

Promising Results, But Still Simulated

During the simulation tests, researchers created extreme conditions. The interference was 100 times stronger than the original signal. Even so, the system would have fully protected allied signals.

The study, led by Professor Yang Jian, was published in the Chinese scientific journal Acta Electronica Sinica. According to the article, interference on friendly users dropped to zero in simulations with drones operating in sync.

Additionally, the technology would have great value in war scenarios with intense electromagnetic competition, such as areas without GPS signal. The “selective interference” would allow for more precise and safer actions for troops that depend on constant communication.

However, despite the promises, the system is still far from being used in combat. Everything has been tested only in a virtual environment. Factors such as the complexity of real-time control and the dependence on perfectly synced drones represent real challenges.

Therefore, even though the idea is considered revolutionary, practical proof is still lacking. The next step will be to transform this promising concept into a functional system outside the laboratories.

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Fabio Lucas Carvalho

Journalist specializing in a wide variety of topics, such as cars, technology, politics, naval industry, geopolitics, renewable energy, and economics. Active since 2015, with prominent publications on major news portals. My background in Information Technology Management from Faculdade de Petrolina (Facape) adds a unique technical perspective to my analyses and reports. With over 10,000 articles published in renowned outlets, I always aim to provide detailed information and relevant insights for the reader.

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