USING THE SMITH DIAGRAM IN THE ANALYSIS OF HIGH-FREQUENCY ANALOG CIRCUITS

The main objectives of this paper are to learn how to generate impedances on the Smith chart. The Smith diagram is a commonly utilized graphical technique for circuit applications with high frequencies, providing an innovative method for visualizing complex functions in the complex plane, where impedances are represented, as well as in the polar plane, where reflection coefficients (phase and amplitude) are described. Additionally, this allows for the representation of circles with a constant Q (quality factor), continuous standing wave ratio (SWR), and stability circles. Through examples given below, we’ve shown how the admittances and impedances can be graphically analyzed using the Smith chart.

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Publication Details

Journal
REVUE ROUMAINE DES SCIENCES TECHNIQUES — SÉRIE ÉLECTROTECHNIQUE ET ÉNERGÉTIQUE
Published
2025-08-30
DOI
https://doi.org/10.59277/rrst-ee.2025.3.13
Primary Topic
Experimental Learning in Engineering
Type
article
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article

USING THE SMITH DIAGRAM IN THE ANALYSIS OF HIGH-FREQUENCY ANALOG CIRCUITS

Marilena Stănculescu, Mihaela Grib, Alexandru GRIB, MIHAI IORDACHE et al.
REVUE ROUMAINE DES SCIENCES TECHNIQUES — SÉRIE ÉLECTROTECHNIQUE ET ÉNERGÉTIQUE
Experimental Learning in Engineering
article

USING THE SMITH DIAGRAM IN THE ANALYSIS OF HIGH-FREQUENCY ANALOG CIRCUITS

Marilena Stănculescu, Mihaela Grib, Alexandru GRIB, MIHAI IORDACHE, Lavinia Bobaru, Dragoș Niculae
article en

Abstract

The main objectives of this paper are to learn how to generate impedances on the Smith chart. The Smith diagram is a commonly utilized graphical technique for circuit applications with high frequencies, providing an innovative method for visualizing complex functions in the complex plane, where impedances are represented, as well as in the polar plane, where reflection coefficients (phase and amplitude) are described. Additionally, this allows for the representation of circles with a constant Q (quality factor), continuous standing wave ratio (SWR), and stability circles. Through examples given below, we’ve shown how the admittances and impedances can be graphically analyzed using the Smith chart.

REVUE ROUMAINE DES SCIENCES TECHNIQUES — SÉRIE ÉLECTROTECHNIQUE ET ÉNERGÉTIQUEVol. 70(3)
Universitatea Națională de Știință și Tehnologie Politehnica București (RO)
Openalex Percentile: Top 66%
Experimental Learning in Engineering
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