Measurement for radiated susceptibility of electronic accurateequipments using a ATEM cell

摘要

This paper describes a method for measuring the radiatedsusceptibility of electronic equipment accurately using an asymmetrictransverse electromagnetic transmission cell (ATEM cell). The ATEM cellis in closed form with a total length of 2.6 m. The main cross sectionappears in an asymmetrical square form with dimensions of 1.2m×1.2 m. The height of the upper half space is 0.3 m and height ofthe lower one is 0.9 m. Some wave-absorbing materials, a slideway and arevolving platform are installed in it. Its working frequency coversfrom DC to 500 MHz, and the standard field strength in it ranges from 10μV/m to 170 V/m. The ATEM cell can be used to test an IBM personalcomputer or other electronic equipment which are placed in the cellduring the test. The measuring process on radiated susceptibility iscontrolled by a computer. It has many virtues such as a wide workingfrequency range, no electromagnetic radiated pollution, easy operationand higher accuracy etc