Nominal and Actual Values of Inductor and Capacitor Parameters at High Frequencies
https://doi.org/10.32362/2500-316X-2019-7-4-44-53
Abstract
Coil inductance and capacitor capacitance depend on overall dimensions, structure, and ambient factors. They do not vary with frequency. Reactive component impedance is determined by inductance or capacitance respectively, if active resistance is not considered. This is true for the frequencies which are significantly lower than the self-resonant frequency of the component. Parasitic parameters contribution increases on approaching the self-resonant frequency. Therefore, the componentʼs actual inductance and actual capacitance on operating frequency are defined. They are provided by manufacturers and differ from the nominal values. The actual values provide more accurate impedance of components near the considered frequency. Significant deviation from the considered frequency can cause impedance mismatch even more than the nominal values can provide. Frequency response of the high-frequency circuits such as analog filters and impedance match networks are determined by components impedance, not the nominal values. Thus, calculated values must be close to the actual values. The purpose of this article is to justify actual values application instead of nominal values.
About the Authors
E. V. Gurov
MIREA – Russian Technological University
Russian Federation
Russian Federation
Postgraduate Student of the Chair of Design and Production of Radio Electronic Equipment, Institute of Radio Engineering and Telecommunication Systems
78, Vernadskogo pr., Moscow 119454, Russia
S. S. Uvaysov
MIREA – Russian Technological University
Russian Federation
Russian Federation
Dr. of Sci. (Engineering), Head of the Chair of Design and Production of Radio Electronic Equipment, Institute of Radio Engineering and Telecommunication Systems
78, Vernadskogo pr., Moscow 119454, Russia
A. S. Uvaysova
MIREA – Russian Technological University
Russian Federation
Russian Federation
Postgraduate Student of the Chair of Design and Production of Radio Electronic Equipment, Institute of Radio Engineering and Telecommunication Systems
78, Vernadskogo pr., Moscow 119454, Russia
S. S. Uvaysova
National Research University «Higher School of Economics»
Russian Federation
Russian Federation
Postgraduate Student of the Department School of Computer Engineering
34, Tallinskaya st., Moscow 123592, Russia
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Review
For citations:
Gurov E.V., Uvaysov S.S., Uvaysova A.S., Uvaysova S.S. Nominal and Actual Values of Inductor and Capacitor Parameters at High Frequencies. Russian Technological Journal. 2019;7(4):44-53. https://doi.org/10.32362/2500-316X-2019-7-4-44-53
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