用频装备强场电磁辐射效应等效试验方法

doi:10.12305/j.issn.1001-506X.2022.03.06

Abstract

Abstract:

Aiming at the error caused by the limitation of the existing differential-mode injection equivalent test method, the reason for the error is analyzed based on the electromagnetic field theory. The correction method with the antenna as the coupling route is proposed. The equivalence between the injection test result and the radiation test result required by the test standard is realized. The spectrum-dependent equipment which is prone to interference damage effects in a complex electromagnetic environment is used as the research object. The communication radio is used as the equipment under test (EUT). The in-band and out-of-band blocking effects strong field electromagnetic radiation equivalent injection test is carried out. A correction method for the simultaneous existence of working signals and interference signals is proposed and verified by experiment. The results show that the equivalent electromagnetic radiation method of the differential mode injection method has a high accuracy, with the receiving antenna as the main coupling route. The electromagnetic power required by the equivalent injection test is significantly less than that of the radiation test.

Key words: spectrum-dependent equipment, high intensity radiated field, current injection, electromagnetic environment effect

CLC Number:

TM15
TN97

Xinfu LU, Guanghui WEI, Xiaodong PAN, Haojiang WAN, Jiangning SUN. High intensity electromagnetic field radiation effect equivalent test method for spectrum-dependent equipment[J]. Systems Engineering and Electronics, 2022, 44(3): 755-761.

Figures/Tables 8

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工作信号频率/MHz	干扰信号频率/MHz	辐射临界干扰场强/V·m^-1	注入等效的临界干扰场强/V·m^-1	两种试验方法的相对误差/dB
f₂	f₂+1.10	14.95	14.99	0.02
f₂	f₂-1.50	7.58	6.52	-1.31
f₃	f₃+1.30	29.01	28.86	-0.04
f₃	f₃-1.30	17.34	17.98	0.32
f₄	f₄+1.15	24.54	23.20	-0.49
f₄	f₄-1.30	23.44	23.62	0.07

频偏(f-f₅)/MHz	ΔE/dB	误差/dB	频偏(f-f₆)/MHz	ΔE/dB	误差/dB
-0.08	3.72	-0.08	-0.08	3.73	-0.07
-0.06	3.71	-0.09	-0.07	3.85	0.05
-0.04	4.58	0.78	-0.04	3.78	-0.02
-0.02	3.90	0.10	-0.02	4.29	0.49
0	4.20	0.40	0.02	4.51	0.71
0.02	3.90	0.10	0.04	4.38	0.58
0.04	3.92	0.12	0.07	3.70	-0.10
0.06	3.97	0.17	0.09	3.76	-0.04
0.08	4.46	0.66	-	-	-

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High intensity electromagnetic field radiation effect equivalent test method for spectrum-dependent equipment

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