A 3-D Luneburg Lens Antenna Fabricated by Polymer Jetting Rapid Prototyping
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- Authors:
- MIN LIANG
NG, Wei-Ren
KIHUN CHANG
GBELE, Kokou
GEHM, Michael E
HAO XIN - Author Affiliations:
- Department of Electrical and Computer Engineering, University of Arizona, Tucson, AZ 85721, United States
Department of Electrical and Computer Engineering and the College of Optical Science, University of Arizona, Tucson, AZ 85721, United States
Department of Electrical and Computer Engineering and Department of Physics, University of Arizona, Tucson, AZ 85721, United States - Source:
- IEEE transactions on antennas and propagation. 62(4):1799-1807
- Publication Date:
- 2014-01-01
- Language:
- English
- Abstract:
- In this work, we designed, built, and tested a low-gain 20 dBi Luneburg Lens antenna using a rapid prototyping machine as a proof of concept demonstrator. The required continuously varying relative permittivity profile was implemented by changing the size of plastic blocks centered on the junctions of a plastic rod space frame. A 12-cm (4λ0 at 10 GHz) diameter lens is designed to work at X-band. The effective permittivity of the unit cell is calculated by effective medium theory and simulated by full-wave finite-element simulations. The fabrication is implemented by a polymer jetting rapid prototyping method. In the measurement, the lens antenna is fed by an X-band waveguide. The measured gain of the antenna at X-band is from 17.3 to 20.3 dB. The measured half-power beam width is from 19° to 12.7° while the side lobes are about 25 dB below the main peak. Good agreement between simulation and experimental results is obtained.
- Notes:
- Telecommunications and information theory
- Subjects:
- Telecommunications
Télécommunications
Sciences exactes et technologie
Exact sciences and technology
Sciences appliquees
Applied sciences
Telecommunications et theorie de l'information
Telecommunications and information theory
Télécommunications
Telecommunications
Radiocommunications
Antennes
Antennas
Alimentation antenne
Antenna feeds
Antenne lentille
Lens antenna
Antena lentiforme
Application spatiale
Space application
Aplicación espacial
Bande X
X band
Banda X
Constante diélectrique
Permittivity
Constante dieléctrica
Gradient indice
Gradient index
Gradiente indicativo
Guide onde
Waveguide
Guía onda
Implémentation
Implementation
Implementación
Lobe latéral
Lateral lobe
Lóbulo lateral
Matière plastique
Plastics
Material plástico
Méthode élément fini
Finite element method
Método elemento finito
Onde centimétrique
Centimetric wave
Onda centimétrica
Prototypage rapide
Rapid prototyping
Prototipificación rápida
Simulation
Simulación
Luneburg lens
lens antenna
rapid prototyping - Format:
- Academic Journal
- Database:
- PASCAL Archive
- Journal:
- IEEE transactions on antennas and propagation
- Volume:
- 62
- Issue:
- 4
- Page Start:
- 1799
- Page Count:
- 9
- ISSN:
- 0018926X
- Publisher:
- New York, NY: Institute of Electrical and Electronics Engineers, 2014.
- Document Type:
- Article
- Physical Description:
- print, 29 ref 2
