Title :
Automotive radome design - fishnet structure for 79 GHz
Author :
Fitzek, Frerk ; Abou-Chahine, Zeid ; Rasshofer, Ralph H. ; Biebl, Erwin M.
Author_Institution :
Fachgebiet Hochstfrequenztech., BMW Group Res. & Technol., Tech. Univ. Munchen, Munich, Germany
Abstract :
Metamaterials are considered as an option for quasi-optical matching of automotive radar radomes, lowering transmission loss and minimizing reflections. This paper shows a fishnet structure design for the 79 GHz band which is suitable for this type of matching and which exhibits a negative index of refraction. The measured transmission loss is 0.9 dB at 79 GHz. A tolerance study concerning copper plating, substrate permittivity, oblique incidence, and polarization is shown. Quasi-optical measurements were done in the range of 60 - 90 GHz, which agree with simulated results.
Keywords :
copper; metamaterials; permittivity; polarisation; refractive index; road vehicle radar; automotive radar radomes; copper plating; fishnet structure design; frequency 60 GHz to 90 GHz; frequency 79 GHz; metamaterial; oblique incidence; polarization; quasi-optical measurement; quasioptical matching; refraction index; substrate permittivity; transmission loss; Automotive engineering; Fascia; Metamaterials; Optical modulation; Optical refraction; Permittivity measurement; Propagation losses; Radar; Space technology; Vehicle safety; Fishnet; Metamaterial; Radar; Radome;
Conference_Titel :
Microwave Conference, 2010 German
Print_ISBN :
978-1-4244-4933-0
Electronic_ISBN :
978-3-9812668-1-8
