"JOURNAL OF RADIO ELECTRONICS" (Zhurnal Radioelektroniki ISSN 1684-1719, N 9, 2016

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A simple method of research of electromagnetic radiation from the electronic equipment

 

Z. M. Gizatullin, M. G. Nuriev, M. S. Shkinderov, F. R.  Nazmetdinov

Kazan National Research Technical University named after A.N.Tupolev-KAI

The paper is received on August 31, 2016

Abstract. The problem of the study of electromagnetic radiation from the electronic equipment is considered in the article. The precise measurement of electromagnetic radiation from the electronic equipment is realized in a shielded semi-anechoic chamber. This equipment is available in a limited number of organizations. An experimental method for the approximate evaluation of the electromagnetic radiation from the electronic equipment in position of operation is proposed in the paper. Personal computers are considered as the example of electronic equipment. The technique involves the calculation of the difference of electromagnetic radiation from the operating and non-operating electronic equipment in the operation area. This technique can reduce the systematic measurement error. Minimal statistical processing lowers the random error. To study the electromagnetic radiation from the electronic equipment the selective measuring receiver RIAP 1.8 and passive log-periodic antenna LPA-1 are used. Measuring receiver has a range of operating frequencies from 9 kHz to 1.8 GHz. Basic level of measurement error is no more than ± 2,5 dB. Antenna has a range of operating frequencies from 300 MHz to 1.8 GHz. The antenna is installed horizontally and vertically in the measurements. Examples of studies of electromagnetic radiation from the electronic equipment are presented.

Keywords: electronic means, electromagnetic radiation, technique, experimental research.

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