1. 77 GHz Stepped Lens With Sectorial Radiation Pattern as Primary Feed of a Lens Based CATR
- Author
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J.-L. Desvilles, Claire Migliaccio, P. Feil, M. Multari, L. Brochier, Ch. Pichot, J.-L. Le Sonn, Jerome Lanteri, Laboratoire d'Electronique, Antennes et Télécommunications (LEAT), Université Nice Sophia Antipolis (... - 2019) (UNS), COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-COMUE Université Côte d'Azur (2015-2019) (COMUE UCA)-Centre National de la Recherche Scientifique (CNRS), Orange Labs [La Turbie], and France Télécom
- Subjects
Materials science ,bandwidth 77 GHz ,Anechoic chamber ,Dielectric measurements ,Testing ,Ripple ,Rotational symmetry ,Near and far field ,02 engineering and technology ,Dielectric ,France Telecom Orange Labs SRSRD software ,Antenna measurements ,law.invention ,Radiation pattern ,numerical simulations ,Fabrication ,Optics ,law ,0202 electrical engineering, electronic engineering, information engineering ,stepped lens ,Electrical and Electronic Engineering ,Lenses ,business.industry ,Telecommunication control ,020208 electrical & electronic engineering ,Optical design ,lens antennas ,Compact antenna test range (CATR) ,020206 networking & telecommunications ,millimetre wave antennas ,axisymmetric dielectric lens ,Antenna radiation patterns ,dielectric lens ,primary feed ,Antenna feeds ,Lens (optics) ,phase control ,[SPI.ELEC]Engineering Sciences [physics]/Electromagnetism ,Amplitude ,phase only control ,Software measurement ,antenna testing ,sectorial radiation pattern ,business ,lens-based compact antenna test range - Abstract
International audience; We describe the design, fabrication and measurements of an axisymmetric dielectric lens, featuring a sectorial radiation pattern at 77 GHz. It will be used as the primary feed of a lens-based compact antenna test range (CATR). Due to symmetry of revolution, the sectorial lens profile can be designed in one dimension by using phase only control. The phase variation is echoed on the lens depth. The resulting stepped lens is simulated using France Telecom Orange Labs SRSRD software (¿in-house¿ software developed for dielectric axisymmetric radiating structures) and measured in an anechoic chamber at 77 GHz. Two lenses were fabricated with different materials: PVC and polyurethane, respectively. Good agreements were obtained between simulations and measurements. Less than 0.2 dB ripple in the central beam are obtained for the polyurethane lens although relatively high secondary lobes occur at 11°. Comparisons between the near field of a CATR illuminated by a small horn providing a uniform amplitude taper and the sectorial lens are conducted using numerical simulations. Results show that on-axis oscillations are reduced from 6 to 1 dB with the sectorial lens.
- Published
- 2010