Construction of a 3-m radio anechoic chamber measurement platform and its practical application

With a focus on the requirements of electromagnetic compatibility measurement and electromagnetic protection design of the Qitai 110-m radio telescope, herein, we constructed a 3-m radio anechoic chamber measurement platform, which provided essential data and technical support for electromagnetic compatibility design and measurement -based performance verification of the large radio telescope. First, we elaborated on the composition of the constructed measurement platform, related equipment performance parameters, the configuration links of the components, and the involved measurement methods, which could be used to perform shielding effectiveness, radiation emission, and radiation susceptibility measurements. Subsequently, we analyzed the differences between the testing results of two measurement standards (GJB 151B and GB/T 9254). Based on the obtained results, we outlined practical application considerations and application examples of the measurement platform, providing important technical support for the electromagnetic compatibility design of large radio telescopes.