Lens-Corrected Axis-Symmetrical Shaped Horn Antenna in Metallized Foam With Improved Bandwidth

Lens-Corrected Axis-Symmetrical Shaped Horn Antenna in Metallized Foam With Improved Bandwidth

A lens-corrected smooth-walled axis-symmetrical dielectric-loaded horn antenna is designed and characterized in Ka-band using the bodies of revolution finite-difference time domain (BoR-FDTD) technique and genetic algorithm. The joint optimization of the horn and dielectric loading profiles enables...

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Veröffentlicht in:IEEE antennas and wireless propagation letters 2012, Vol.11, p.57-60
Hauptverfasser: Rolland, A., Boriskin, A. V., Person, C., Quendo, C., Le Coq, Laurent, Sauleau, R.
Format: Artikel
Sprache:eng
Schlagworte:
Bandwidth
Bodies of revolution finite-difference time domain (BoR-FDTD)
Dielectrics
Electronics
Engineering Sciences
Fabrication
Gain
genetic algorithm
Horn antennas
metallized foam
millimeter waves
Optimization
smooth-walled shaped horns
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Beschreibung
Zusammenfassung:A lens-corrected smooth-walled axis-symmetrical dielectric-loaded horn antenna is designed and characterized in Ka-band using the bodies of revolution finite-difference time domain (BoR-FDTD) technique and genetic algorithm. The joint optimization of the horn and dielectric loading profiles enables us to develop a horn with a very good gain performance achieved in a frequency range of about 18%. Compared to earlier results, the bandwidth improvement exceeds a factor two. A lightweight prototype is fabricated in metallized foam. A very good agreement between the numerical and measured data is obtained.
ISSN:1536-1225
1548-5757
DOI:10.1109/LAWP.2011.2182596