Analysis of an Inhomogeneous Circularly Polarized Hollow Dielectric Resonator Antenna Using Perturbation Theory Article Swipe
Neetu Sehrawat
,
Binod Kumar Kanaujia
,
Anshul Agarwal
,
Gaurav Varshney
·
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/electronics10182273
YOU?
·
· 2021
· Open Access
·
· DOI: https://doi.org/10.3390/electronics10182273
The perturbation approach is presented here for the first time for the analysis of an inhomogeneous circularly polarized rectangular dielectric resonator (DR) antenna (DRA). The inhomogeneous permittivity is created by perturbing a rectangle-shaped region of different material inside the rectangular dielectric resonator antenna (RDRA). The orthogonal degenerate modes with a phase difference of TE111x, and TE111y, are excited simultaneously for achieving circular polarization. A simple expression for the calculation of the resonant frequency and optimal axial ratio point for a circularly polarized (CP) inhomogeneous RDRA is presented here. Theoretical results obtained from the proposed theory are compared with theoretical, simulated, and experimental data available in the literature. The proposed analysis results show optimal axial ratio point calculations within a 1% range of the simulated and experimental data, which is better than the previous transverse transmission line reported method, having an error of approximately 4%. The advantages, accuracy, and simplicity of perturbation theory for DR are discussed in detail. The proposed theory can be easily extended for higher order modes and other shapes of material perturbation and anisotropic DRAs. The proposed technique will help in incorporation of the perturbation in the DR so that CP radiation can be obtained in an easy way.
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- Type
- article
- Language
- en
- Landing Page
- https://doi.org/10.3390/electronics10182273
- https://www.mdpi.com/2079-9292/10/18/2273/pdf?version=1632014605
- OA Status
- gold
- Cited By
- 6
- References
- 37
- Related Works
- 10
- OpenAlex ID
- https://openalex.org/W3199651278
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- OpenAlex ID
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https://openalex.org/W3199651278Canonical identifier for this work in OpenAlex
- DOI
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https://doi.org/10.3390/electronics10182273Digital Object Identifier
- Title
-
Analysis of an Inhomogeneous Circularly Polarized Hollow Dielectric Resonator Antenna Using Perturbation TheoryWork title
- Type
-
articleOpenAlex work type
- Language
-
enPrimary language
- Publication year
-
2021Year of publication
- Publication date
-
2021-09-16Full publication date if available
- Authors
-
Neetu Sehrawat, Binod Kumar Kanaujia, Anshul Agarwal, Gaurav VarshneyList of authors in order
- Landing page
-
https://doi.org/10.3390/electronics10182273Publisher landing page
- PDF URL
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https://www.mdpi.com/2079-9292/10/18/2273/pdf?version=1632014605Direct link to full text PDF
- Open access
-
YesWhether a free full text is available
- OA status
-
goldOpen access status per OpenAlex
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https://www.mdpi.com/2079-9292/10/18/2273/pdf?version=1632014605Direct OA link when available
- Concepts
-
Axial ratio, Physics, Dielectric resonator antenna, Optics, Resonator, Circular polarization, Degenerate energy levels, Rectangle, Dielectric, Polarization (electrochemistry), Computational physics, Dielectric resonator, Mathematics, Geometry, Quantum mechanics, Microstrip, Chemistry, Physical chemistryTop concepts (fields/topics) attached by OpenAlex
- Cited by
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6Total citation count in OpenAlex
- Citations by year (recent)
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2025: 4, 2022: 1, 2021: 1Per-year citation counts (last 5 years)
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37Number of works referenced by this work
- Related works (count)
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10Other works algorithmically related by OpenAlex
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