Article: Interference effects of 24 GHz UWB automotive short-range radar to broadcasting and fixed satellite services in Ku and Ka bands Journal: International Journal of Ultra Wideband Communications and Systems (IJUWBCS) 2010 Vol.1 No.3 pp.196 - 208 Abstract: The introduction of the automotive radar was a challenge for spectrum engineering and management primarily because of its out-of-band emissions, and not due to its in-band emissions. The SRR will have a large operating bandwidth of up to 5 GHz and could potentially cause interference to broadcasting and fixed satellite services operating/planned in the nearby Ku and Ka bands. The emissions from 24 GHz systems on-board a vehicle should not cause unwanted interference to these services. Accompanying the market introduction of 24 GHz ultrawide band (UWB) short automotive radar (short-range radar), extensive co-existence studies have been performed between 24 GHz UWB short-range radar and different present and planned RF services. In this paper, an estimate of the interference due to direct-coupled fields from the SRR|s on a single vehicle to BSS and FSS systems in Ku and Ka bands, is studied. In addition, aggregate interference from multiple SRR|s mounted on single/multiple vehicles are also analysed. This paper introduces a methodology for coexistence studies between 24 GHz UWB SRR and BSS/FSS services. Inderscience Publishers - linking academia, business and industry through research

Title: Interference effects of 24 GHz UWB automotive short-range radar to broadcasting and fixed satellite services in Ku and Ka bands

Authors: Ranga Rao Makanaboyina, Mohan Kumar Sadashivaiah, Hans-Ludwig Bloecher

Addresses: Mercedes-Benz Research and Development India, Embassy Golf Links Tech Park, Domlur, Bangalore, 560071, India. ' Mercedes-Benz Research and Development India, Embassy Golf Links Tech Park, Domlur, Bangalore, 560071, India. ' Daimler AG, Wilhelm-Runge-Str. 11, Ulm, D-89081, Germany

Abstract: The introduction of the automotive radar was a challenge for spectrum engineering and management primarily because of its out-of-band emissions, and not due to its in-band emissions. The SRR will have a large operating bandwidth of up to 5 GHz and could potentially cause interference to broadcasting and fixed satellite services operating/planned in the nearby Ku and Ka bands. The emissions from 24 GHz systems on-board a vehicle should not cause unwanted interference to these services. Accompanying the market introduction of 24 GHz ultrawide band (UWB) short automotive radar (short-range radar), extensive co-existence studies have been performed between 24 GHz UWB short-range radar and different present and planned RF services. In this paper, an estimate of the interference due to direct-coupled fields from the SRR|s on a single vehicle to BSS and FSS systems in Ku and Ka bands, is studied. In addition, aggregate interference from multiple SRR|s mounted on single/multiple vehicles are also analysed. This paper introduces a methodology for coexistence studies between 24 GHz UWB SRR and BSS/FSS services.

Keywords: short-range radar; SRR; broadcasting satellite services; BSS; fixed satellite services; FSS; electromagnetic compatibility; ultra wideband; UWB; coexistence; vehicle radar; automotive radar.

DOI: 10.1504/IJUWBCS.2010.031818

International Journal of Ultra Wideband Communications and Systems, 2010 Vol.1 No.3, pp.196 - 208

Published online: 24 Feb 2010 *

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Title: Interference effects of 24 GHz UWB automotive short-range radar to broadcasting and fixed satellite services in Ku and Ka bands

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