UWB automotive radar to mitigate impact on radio services using restricted band

A novel UWB SRR complying with the FCC new spectrum mask, and its key components, a carrier-leak-free BO, an antenna with notch filtering function, has been described. Furthermore, an incoherent receiving system which consists of SLD, variable gain LNA, SH has been presented, enabling simple and low-cost SRR. We make further efforts for developing simpler SRR with one-chip Tx- and one-chip Rx-modules.