Mechanically Steered Lens Antennas for 45GHz High Datarate Airliner-Ground Link
ABSTRACT A mechanically steered hemispherical lens antenna was investigated using the commercially available MOM software FEKOTM to meet a requirement for a low weight and low cost mm-wave transmit antenna for installation onboard a large passenger aircraft. Hemispherical homogeneous lenses of relative permittivity 2.5 and 4 wavelength radius were found to meet the 26.5 dBic gain specification across 75deg elevation scan range. Distorting the circular reflecting plate under the hemispherical lens to an elliptical shape was found to increase the elevation scan range to 105deg, satisfying the scan requirement. Similar results were obtained with a relative permittivity 1.7 lens, when fed by a near field focused horn antenna. The advantage of the latter design is 40% reduction in mass of the lens.
- SourceAvailable from: J.P. Coupez
Conference Proceeding: Cost effective antenna for LEO-satellites communication system using a homogeneous lens[show abstract] [hide abstract]
ABSTRACT: This work presents a low-cost, multi-beam antenna system, using a dielectric homogeneous lens as a focusing system. First, the design methodology of the antenna system, combining a homogeneous lens and its primary source, is described. Then, aberration phenomena generated by the lens are characterized. Finally, the primary source, used to correct these aberrations, is briefly described and measurement results of the global antenna system are presented.Antennas and Propagation Society International Symposium, 2004. IEEE; 07/2004
- IEE Proceedings - Microwaves Antennas and Propagation 01/2007; 153(6):573-578. · 0.49 Impact Factor
Conference Proceeding: A hemispherical lens antenna for multi-satellite reception[show abstract] [hide abstract]
ABSTRACT: A hemispherical lens antenna has been developed for the reception of direct to home satellite broadcasts in Europe. The antenna uses a homogeneous lens and flat reflector to give an angle of scan of ±60° without degradation in performance. Artificial dielectric material consisting of spherical voids in polystyrene is used to realize the necessary lens dielectric constant. Unlike previous implementations of the hemispherical lens approach, the reflector is extended beyond the surface of the lens to maintain the effective aperture area of the antenna with scan angleAntennas and Propagation Society International Symposium, 1992. AP-S. 1992 Digest. Held in Conjuction with: URSI Radio Science Meeting and Nuclear EMP Meeting., IEEE; 08/1992