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DC Field | Value | Language |
---|---|---|
dc.contributor.author | Kumar, A. V. Praveen | - |
dc.date.accessioned | 2023-03-06T07:04:34Z | - |
dc.date.available | 2023-03-06T07:04:34Z | - |
dc.date.issued | 2019-01 | - |
dc.identifier.uri | https://ietresearch.onlinelibrary.wiley.com/doi/full/10.1049/iet-map.2018.5136 | - |
dc.identifier.uri | http://dspace.bits-pilani.ac.in:8080/xmlui/handle/123456789/9514 | - |
dc.description.abstract | A cylindrical dielectric resonator antenna (DRA) has been excited with a microstrip line in the HEM11δ mode. It is demonstrated that at the operating frequency, minimum cross-polarisation occurs when the lateral dimension of the substrate is slightly higher than half a free-space wavelength (λ0). This occurs when direct waves from the DRA interfere appropriately with the waves that are diffracted from the substrate edges. For a 50 Ω microstrip-fed cylindrical DRA, numerical prediction suggests a substrate of lateral dimension 0.58λ0 for the lowest possible cross-polarisation. In addition, the above optimum substrate size is constant irrespective of the substrate shape (square or circle) or dielectric resonator (DR) properties (permittivity and aspect ratio) for a given substrate permittivity. Numerical results are experimentally verified for a DRA with permittivity 24 and aspect ratio 1.33, for both square and circular substrates at the respective operating frequencies. | en_US |
dc.language.iso | en | en_US |
dc.publisher | IET | en_US |
dc.subject | EEE | en_US |
dc.subject | Dielectric Resonator Antenna (DRA) | en_US |
dc.subject | Cross-polarisation | en_US |
dc.title | Substrate size selection of microstrip-fed cylindrical dielectric resonator antennas for lowering the cross-polarisation | en_US |
dc.type | Article | en_US |
Appears in Collections: | Department of Electrical and Electronics Engineering |
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