ETS-Lindgren powers automotive manufacturers’ business with solutions that ensure the vehicles they put on roads around the globe can perform without electromagnetic interference.
As more and more automotive systems become electronically controlled, the auto industry is devoting attention to testing the complex components and assemblies inside each vehicle’s internal network. And that’s where the people of ETS-Lindgren come in. Our team of machinists, technicians, and engineers are driven to exceed expectations – they’re how ETS-Lindgren was able to successfully design and build the largest automotive electromagnetic test facility in the world for General Motors.
Because electromagnetic interference can’t be ignored, ETS-Lindgren is there with solutions that prevent life-threatening hazards for drivers and passengers alike.
Watch our Automotive Testing Solutions Video for more information.
The increasing demand for sensors and systems that use RF communication in one form or another in modern vehicles is driving the growing degree of complexity and control system density. For many of these systems, it is necessary to perform some level of individual performance evaluation that may involve an over the air component in the performance assessment. Although this may be just one aspect o... View more
Garth D'Abreu | Zubiao Xiong | Zhong Chen
In this paper we present a novel dielectric lens design placed in front of a double ridge horn (DRH) antenna to meet the technical requirements for Automotive Electromagnetic Compatibility (EMC) Immunity tests. ETS-Lindgren 3119 DRH is selected as the reference antenna for its superior wide frequency range. In the new lens design, the shape of the conventional Plano-convex lens is modified to accommodate two seemingly contradictory requirements - to increase the gain of the antenna system to meet a target average field strength (100 V/m @ 2m distance), and in the meantime, to maintain the antenna beamwidth for field uniformity (FU) to be better than 6dB over 80% of the total number of frequency points. Additionally, it is desirable to keep the lens size small to reduce the cost and weight. Both numerical simulation and measurements results are shown, indicating that the proposed lens with DRH antenna is well suited for ISO 11451-2 Automotive Immunity tests.
Zhong Chen ;
Automotive standards addressing electromagnetic compatibility (EMC) are developed mainly by CISPR, ISO and SAE. CISPR and ISO are organizations that develop and maintain standards for use at the international level. SAE develops and maintains standards mainly for use in North America. In the past, SAE developed many EMC standards which were eventually submitted to CISPR and ISO for consideration as an international standard. As the SAE standards become international standards, the equivalent SAE standard is then withdrawn as a complete standard and reserved for use to document differences from the international standard.
In this paper the reader will be educated on the fact that the TEM field supported by these structures is not perfectly uniform over the volume occupied by the vehicle at all frequencies, and that the structure will radiate and that it will couple to the chamber enclosure.