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Wideband Circularly Polarized Cylindrical Dielectric Resonator Antennas With Rectangular Curved Slots [Antenna Applications Corner].

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Title: Wideband Circularly Polarized Cylindrical Dielectric Resonator Antennas With Rectangular Curved Slots [Antenna Applications Corner].
Authors: Darimireddy, Naresh K.1 (AUTHOR) yojitnaresh@gmail.com, Reddy, R. Ramana2 (AUTHOR) profrrreddy@yahoo.co.in, Prasad, A. Mallikarjuna3 (AUTHOR) a_malli65@yahoo.com
Source: IEEE Antennas & Propagation Magazine. Dec2020, Vol. 62 Issue 6, p65-73. 9p.
Subjects: IEEE 802.16 (Standard), Dielectric resonator antennas, Antennas (Electronics), Circular polarization
Abstract: Wideband circularly polarized antennas with wide axial-ratio (AR) bandwidth and required gain are desired for point-to-multipoint communication and remote tracking applications. Two different designs of probe-fed rectangular curved slotted dielectric resonator antenna (SDRA) models are proposed in this article, one with an overall size of 50 ? 50 mm2 (SDRA-1) and the other a scaled-down version with 25 ? 25 mm2 (SDRA-2). Axially symmetric rectangular curved slots are introduced in cylindrical dielectric resonator antennas (CDRAs) to create asymmetry in the structure for circular polarization (CP). The proposed SDRA-1 offers a wide impedance bandwidth of 55% (4.14-7.31 GHz) and a 3-dB AR bandwidth of 38% (4.82-7.07 GHz) with a minimum AR value of 0.1 dB. The peak gain obtained for SDRA-1 is 6 dBi. A scaled-down version of the dielectric resonator antenna (DRA) provides an impedance bandwidth of 57.5% (7.34-12.94 GHz), a 3-dB AR bandwidth of 0.76 GHz, and a peak gain of 5.52 dBi. The proposed DRA models are suitable for IEEE wireless standard 802.11ac Wi-Fi (5 GHz), IEEE 802.11a (5.2 GHz), IEEE 802.16d worldwide interoperability for microwave access (WiMax) and x-band applications. [ABSTRACT FROM AUTHOR]
Copyright of IEEE Antennas & Propagation Magazine is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
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DbLabel: Engineering Source
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  Data: Wideband Circularly Polarized Cylindrical Dielectric Resonator Antennas With Rectangular Curved Slots [Antenna Applications Corner].
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  Data: <searchLink fieldCode="JN" term="%22IEEE+Antennas+%26+Propagation+Magazine%22">IEEE Antennas & Propagation Magazine</searchLink>. Dec2020, Vol. 62 Issue 6, p65-73. 9p.
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  Data: <searchLink fieldCode="DE" term="%22IEEE+802%2E16+%28Standard%29%22">IEEE 802.16 (Standard)</searchLink><br /><searchLink fieldCode="DE" term="%22Dielectric+resonator+antennas%22">Dielectric resonator antennas</searchLink><br /><searchLink fieldCode="DE" term="%22Antennas+%28Electronics%29%22">Antennas (Electronics)</searchLink><br /><searchLink fieldCode="DE" term="%22Circular+polarization%22">Circular polarization</searchLink>
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  Label: Abstract
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  Data: Wideband circularly polarized antennas with wide axial-ratio (AR) bandwidth and required gain are desired for point-to-multipoint communication and remote tracking applications. Two different designs of probe-fed rectangular curved slotted dielectric resonator antenna (SDRA) models are proposed in this article, one with an overall size of 50 ? 50 mm2 (SDRA-1) and the other a scaled-down version with 25 ? 25 mm2 (SDRA-2). Axially symmetric rectangular curved slots are introduced in cylindrical dielectric resonator antennas (CDRAs) to create asymmetry in the structure for circular polarization (CP). The proposed SDRA-1 offers a wide impedance bandwidth of 55% (4.14-7.31 GHz) and a 3-dB AR bandwidth of 38% (4.82-7.07 GHz) with a minimum AR value of 0.1 dB. The peak gain obtained for SDRA-1 is 6 dBi. A scaled-down version of the dielectric resonator antenna (DRA) provides an impedance bandwidth of 57.5% (7.34-12.94 GHz), a 3-dB AR bandwidth of 0.76 GHz, and a peak gain of 5.52 dBi. The proposed DRA models are suitable for IEEE wireless standard 802.11ac Wi-Fi (5 GHz), IEEE 802.11a (5.2 GHz), IEEE 802.16d worldwide interoperability for microwave access (WiMax) and x-band applications. [ABSTRACT FROM AUTHOR]
– Name: AbstractSuppliedCopyright
  Label:
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  Data: <i>Copyright of IEEE Antennas & Propagation Magazine is the property of IEEE and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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      – SubjectFull: Dielectric resonator antennas
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      – SubjectFull: Antennas (Electronics)
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      – TitleFull: Wideband Circularly Polarized Cylindrical Dielectric Resonator Antennas With Rectangular Curved Slots [Antenna Applications Corner].
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              Text: Dec2020
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