Title :
Design of multi-beam antennas via optical transformation for anti-collision radar system
Author :
Yan Yang ; Xiangmo Zhao ; Wang, Tianjiao
Author_Institution :
Sch. of Inf. Eng., Changan Univ., Xian
Abstract :
Anti-collision radars help prevent car accidents by detecting obstacles around vehicles equipped with such systems. This task relies on a high-performance antenna, which can detect the obstacles efficiently around the care. In this paper, we investigate the design of multi-beam antennas by the technique of optical transformation. Analytical formulas of the permittivity and permeability tensors are presented for the metamaterial layer in the antenna. The designed multi-beam antennas are validated by full-wave simulations using the finite-element method. The proposed multi-beam antennas will be very useful in the intelligent traffic system.
Keywords :
accident prevention; antenna radiation patterns; automotive components; collision avoidance; finite element analysis; metamaterials; microwave antennas; microwave materials; multibeam antennas; permeability; permittivity; radar antennas; road accidents; road vehicle radar; vehicle dynamics; anticollision radar system; car accident prevention; far-field radiation pattern; finite-element method; full-wave simulations; high-performance multibeam antenna design; intelligent traffic system; metamaterial layer; obstacle detection; optical transformation; permeability tensor; permittivity tensor; Laser radar; Optical design; Optical design techniques; Permeability; Permittivity; Radar antennas; Radar detection; Road accidents; Tensile stress; Vehicle detection; Multi-beam antennas; anti-collision radar system; optical transformation;
Conference_Titel :
Metamaterials, 2008 International Workshop on
Conference_Location :
Nanjing
Print_ISBN :
978-1-4244-2608-9
Electronic_ISBN :
978-1-4244-2609-6
DOI :
10.1109/META.2008.4723587
