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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
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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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document
All-dielectric compact superstrates for high-gain resonant-cavity antennas
Abstract
<p>This paper presents the designs and measurements of two compact single-layer all-dielectric resonant-cavity antennas (RCAs). Both the antennas are compact (footprint < 5.5λ<sup>2</sup><sub>0</sub>) and low in profile (overall height < 0.9λ<sub>0</sub>). The first RCA consists of a single-layer partially reflecting superstrate (PRS) in which thickness and permittivity vary from the center towards the edge of the PRS. Four commercially available dielectric materials are used to achieve this permittivity variation. This RCA demonstrates a measured peak directivity of 20.7 dBi and its 3dB directivity bandwidth extends from 12.75-19 GHz, which is 57% at the center frequency. The second RCA, made out of a single dielectric material demonstrates a measured peak directivity of 20.3 dBi and its measured 3dB directivity bandwidth is 55.9%. This class of compact single-layer RCAs, with a directivity bandwidth product per unit area (DBP/A) of greater than 1200, successfully overcomes the trade-off between directivity, bandwidth, profile and footprint and breaks the challenging barrier that has existed for RCAs over the last decade (and other planar high-gain antennas).</p>