Test article written by Peter on the Clone site

By Peter Paumgardhen | Published on December 18, 2025

In recent years, wireless communication in automotive systems has become increasingly crucial. Most people are familiar with wireless key fobs, but there is now an emerging area of V2X communications, vehicles communicating with everything from pedestrians to traffic lights. This promises enhanced safety, traffic efficiency and support for autonomous driving amongst other things [1].

However, as cars become more reliant on wireless communication, they also become more vulnerable to electromagnetic interference. For instance, a majority of modern car keys rely on a Remote Keyless Entry System (RKE). Although this offers high convenience, it also poses a risk as signal jammers can sever the connection between the key fob and the car. Recent studies indicate that this is a growing problem, showing the urgent need for effective and smart countermeasures [2].

Our Proposal

Our proposed solution is a cost-effective, multifunctional anti-jamming antenna system that can estimate the Angle of Arrival (AoA) of jamming signals and actively suppress them. Through configurable settings, the system can either null interfering sources or beamform to “super-listen” to legitimate V2X signals, enhancing their reception.

In practice, the proposed system will be validated using a controlled experimental setup, illustrated in Figure 1, consisting of a scaled-down vehicle model equipped with the anti-jamming system, a signal generator emulating a legitimate key fob transmission, and a separate antenna acting as a jamming source.

During the demonstration, an intentional jamming signal will be transmitted towards the vehicle model.

Vehicle Jammer Key fob Fig. 1: Top-down view of the experimental setup showing antenna coverage sectors, jammer, and key fob.

The system will detect the interfering signal, estimate its angle of arrival (AoA), and apply adaptive null steering to cancel out the jammer. This will make certain that the desired signal originating from the emulated car key is successfully received by the vehicle despite the presence of interference.