Conference Proceeding

UWB Radar RF Front-End to Mitigate Impacts on EESS and Radio Astronomy

Anritsu Corp., Kanagawa
10/2006; DOI:10.1109/ICU.2006.281564 In proceeding of: Ultra-Wideband, The 2006 IEEE 2006 International Conference on
Source: IEEE Xplore

ABSTRACT A novel UWB short-range radar (SRR) which effectively mitigates its impacts on radio services using the restricted band such as radio astronomy or Earth Exploring Satellite Service is introduced. The essential components, a burst oscillator generating no carrier leak, and antennas with notch-filtering function are presented in detail. Other key MMICs, such as a high-speed square-law detector, variable gain LNA, a sample-hold circuit, etc. are also described with the performances of the SRR

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    ABSTRACT: A printed antenna composed of via-wall-cavity with a rim excited by a bow-tie antenna is presented that suppresses surface-waves generated in thick substrate, consequently exhibits wideband antenna characteristics. It is demonstrated that a developed 2 times 4-element array for UWB automotive radar performs 15 dBi gain over 20% bandwidth, and has a band rejection notch which reduces effectively interferences between UWB radars and radio services using the restricted frequency band.
    Antennas and Propagation Society International Symposium, 2007 IEEE; 07/2007

T. Teshirogi