Comparative analysis of circuit and finite element models for a linear wire dipole antenna
| Autor: | Brendan OrFlynn, John Buckley, Sanjeev Kumar, Adolfo Di Serio |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Optimal design
Antenna impedance Equivalent circuit Acoustics Center-fed linear wire dipole antenna Dipole antenna 02 engineering and technology EM model 01 natural sciences law.invention Input impedance Frequency 2.45 GHz Microwave antennas Mathematical model law 0202 electrical engineering electronic engineering information engineering Ohm Electrical impedance Physics Equivalent circuit models Resonant frequency 010401 analytical chemistry Finite element analysis Impedance 020206 networking & telecommunications Full-wave electromagnetic solvers Internet of Things device Finite element method 0104 chemical sciences Linear antennas Wireless communication systems Wire antennas Integrated circuit modeling FEM and circuit models Element (category theory) Finite element model |
| Popis: | Antennas are a critical component of an internet of things device and are typically modelled using full-wave electromagnetic (EM) solvers for their optimal design. In this paper, we investigate and compare the impact, accuracy and limitations of three, four and five element equivalent circuit models from the literature to estimate the impedance characteristics of a center-fed linear wire dipole antenna at 2.45 GHz. All the circuit model results are compared against the finite element model. It was found that the three element model is inaccurate in estimating the input impedance of a dipole antenna at the resonant frequency. In comparison to the finite element model, the four element model estimates the input impedance with an error of 3.75 j2.54 Ohms at 2.45 GHz. For the five element model the error−in the input impedance was −6.21+j1.68 Ohms. The input impedance for the both, the four and five element models are in good agreement with the EM model. This approach is shown to enable efficient analysis of antenna impedance for wireless communication systems. |
| Databáze: | OpenAIRE |
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