Investigation of a Rectangular Dielectric Resonator Antenna Working in Higher Order Modes Using Perturbation Theory
Dielectric resonator antennas (DRAs) operating in higher order modes provide wideband, enhanced gain, and circularly polarized performance. This paper presents a simple perturbation theory for predicting the resonant frequency of higher order modes in perturbed rectangular DRAs (RDRAs). The proposed theory has been validated for isolated RDRA, two‐layer DRA, and RDRA with rectangular‐ and cylindrical‐shaped perturbations. To determine the accuracy of the proposed theory, the frequency computed from it is compared to simulated and measured results of higher order mode perturbed antennas available in the literature. The proposed theory can be easily applied to the design of perturbed DRAs that operate at higher order modes. Also, the theory can be extended to compute other antenna parameters.
Authors
- Neetu Sehrawat (ORCID: https://orcid.org/0000-0001-6003-2002)
- Binod Kumar Kanaujia (ORCID: https://orcid.org/0000-0003-1272-1561)
- Gaurav Varshney (ORCID: https://orcid.org/0000-0002-7001-9095)
- Sachin Kumar (ORCID: https://orcid.org/0000-0002-6260-6353)
- Sandeep Kumar Palaniswamy (ORCID: https://orcid.org/0000-0001-5270-0242)
Institutions
- National Institute of Technology Patna (IN)
- SRM Institute of Science and Technology (IN)
- Galgotias University (IN)
- Maharaja Engineering College (IN)
- Netaji Subhas University of Technology (IN)
- National Institute of Technology Delhi (IN)
- Dr. B. R. Ambedkar National Institute of Technology Jalandhar (IN)
Publication Details
- Journal
- International Journal of Antennas and Propagation
- Published
- 2025-01-01
- DOI
- https://doi.org/10.1155/ijap/5582517
- Primary Topic
- Antenna Design and Analysis
- Type
- article
- Field-Weighted Citation Impact
- 0.00