Measurement of Nonlinear Scattering of Baseband Pulsed Electromagnetic Waves by Small-Sized Objects

IF 0.4 4区工程技术 Q4 ENGINEERING, MULTIDISCIPLINARY

Instruments and Experimental Techniques Pub Date : 2024-12-05 DOI:10.1134/S0020441224701112

E. V. Semyonov, M. A. Nazarov, A. V. Fateev, K. M. Poltorykhin, A. A. Berezin, V. S. Pozdnyakov

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Abstract

A setup that allows for measuring the scattering of a step ultra-wideband electromagnetic wave (subnanosecond front duration) by small-size objects is considered. The main feature of the setup is the selection of the nonlinear response component in a scattered signal with a continuous spectrum. The intensity of the test field achieved in the experiments is 135 W/m². It is shown that the threshold sensitivity for the object’s nonlinear response is limited mainly by the shift of local fragments of the recorded signals that occurs in the stroboscopic receiver. By correcting these shifts, a threshold sensitivity for the potential of a nonlinearly scattered field of no worse than 3.5 mV was obtained at a potential of a field scattered by the object not exceeding 520 mV. The results of testing the setup using linear and nonlinear standards with known parameters, as well as observing the nonlinear response of a small-sized electronic device, are presented.

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来源期刊

Instruments and Experimental Techniques 工程技术-工程：综合

CiteScore

1.20

自引率

33.30%

发文量

113

审稿时长

4-8 weeks

期刊介绍： Instruments and Experimental Techniques is an international peer reviewed journal that publishes reviews describing advanced methods for physical measurements and techniques and original articles that present techniques for physical measurements, principles of operation, design, methods of application, and analysis of the operation of physical instruments used in all fields of experimental physics and when conducting measurements using physical methods and instruments in astronomy, natural sciences, chemistry, biology, medicine, and ecology.