Bitte wählen Sie ihr Lieferland und ihre Kundengruppe
24 GHz UWB sensors based on GaAs (Gallium Arsenide) have been launched in the automotive industry in series production in the year 2005. The SLR (Sequential Lobing Radar) technique enables the accurate location of objects regarding distance, velocity and bearing of objects in the detection range with a single sensor. For cost-effective production SRR sensors can be manufactured by using SiGe (Silicon Germanium) based RF modules. This allows to meet the sensors cost reduction goal by migrating to a low-cost packaging and IC technology using standard low-cost plastic package techniques for high-frequency circuitries and conventional circuit boards and SMT procedures. Current European regulations restrict this life-saving automotive technology due to time limitations, limits on market penetration and automatic deactivation requirements. A flexible frequency allocation of these first generation ultra-wideband short range radar sensors is possible in the US where no restrictions prohibit the implementation of SRR. A similar frequency allocation is under discussion in Canada and Japan. The flexibility to move the SRR frequency band upward, above the restricted passive bands, between 24 GHz and 29 GHz, can avoid harmful interference and regulatory burdens. The current regulations in Europe limit the usage of 24 GHz UWB sensors due to restrictions in time and market penetration. Only a flexible solution will allow the large scale introduction of the mature SRR technology. 24 GHz UWB radar sensors are well established in the automotive market. The radar sensors are used for convenience and safety functions and contribute to enhance the safety on roads. A flexible frequency allocation of ultra-wideband short range radar sensors between 24 GHz and 29 GHz with no limitations will create larger markets and economies of scale will raise market acceptance.