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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hashmi, Raheel
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (20/20 displayed)
- 2020Robustness analysis of the polymer-conductive-mesh composite for the realization of transparent and flexible wearable antennascitations
- 2019A stripline-based planar wideband feed for high-gain antennas with partially reflecting superstructurecitations
- 2019All-dielectric compact superstrates for high-gain resonant-cavity antennas
- 2019Closely-spaced resonant cavity antennas for meeting ETSI class-2 specifications
- 2018Compact high-gain antenna with simple all-dielectric partially reflecting surfacecitations
- 2018Transverse permittivity gradient (TPG) superstrates or lenscitations
- 2017Achieving a large gain-bandwidth product from a compact antennacitations
- 2017Aperture field transformation in resonant cavity antennas by transverse permittivity gradient superstrates
- 2016A Class of Extremely Wideband Resonant Cavity Antennas with Large Directivity-Bandwidth Productscitations
- 2016Wideband gain enhancement of slot antenna using superstructure with optimised axial permittivity variationcitations
- 2016Preliminary results of an array of resonant cavity antennas at 60 GHzcitations
- 2016Distribution profiles for transverse permittivity gradient superstrates in extremely wideband resonant cavity antennascitations
- 2016A simple electromagnetic bandgap resonator antenna for 60 GHz wireless applicationscitations
- 2016A planar feeding technique for wideband, low-profile resonant cavity antennascitations
- 2016Performance evaluation of conventional and planar feeds in Resonant Cavity Antennas
- 2016Wideband single-feed highly directive resonant cavity antennas with all-dielectric superstructures
- 2015Recent advances in electromagnetic band gap resonator antennas
- 2015Composite defect-mode superstructures and wideband EBG resonator Antennas
- 2015Composite defect-mode superstructures and wideband EBG resonator Antennas
- 2014Achieving high directivity-bandwidth through flat GRIN superstrates in Fabry-Perot cavity antennascitations
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article
Wideband gain enhancement of slot antenna using superstructure with optimised axial permittivity variation
Abstract
<p>A simple method is proposed to significantly enhance the broadside directivity of a simple slot antenna over a wide bandwidth. This improvement is achieved by introducing a simple optimised dielectric superstructure with an axial variation of permittivity. In this antenna, both the superstructure and ground plane are cylindrical in shape with an area of 1.62(0)(2). The antenna has a measured peak directivity of 18.1 dBi and an extremely wide 3 dB directivity bandwidth of 51.1%. A WR-75 waveguide is used to feed the slot antenna. The antenna is well matched over the entire directivity bandwidth, which extends from 8.75 to 14.75 GHz. The measured average aperture efficiency is approximate to 88% over the 3 dB directivity bandwidth.</p>