Inspired by the filter-bank (FB) concept that is normally used for multirate signal processing, an FB-enabled array technique of leaky-wave antennas (LWAs) is proposed and studied for creating full-band-locked frequency-scanning radar (FSR) systems in a stitched frequency-space domain. This is mainly for addressing the coupling dilemma between the range and angle resolutions, which is historically and naturally inherited from a conventional FSR. First, the typical frequency-modulated continuous-wave system architecture is selected to exemplify and recall the characteristics of a conventional FSR with emphasis on its resolution coupling. Then, a radar solution featuring a stitched frequency-space domain and depending on an FB-enabled array of LWA channels is introduced for realizing the desired resolution decoupling. With the radar equation, FB-related conditions for obtaining the critical “frequency-space stitching” are analytically derived and converted into relevant design specifications of an LWA array, including engineered beam-scanning functions, beam-crossovers, and phase alignments. To facilitate the practical implementation of such a front-end array technique, a detailed and generalized design flow is developed. Finally, for a simple proof of concept, an FB-enabled two-channel LWA array is modeled, fabricated, and measured. Simulated and measured results are in reasonable agreement; both demonstrate the desired “frequency-space stitching” behavior, i.e., enhanced spectrum bandwidth and widened radiation beamwidth. The proposed array solution may be potentially deployed for FSR systems with a full-band-locked beam illumination and a decoupled range-angle resolution, which may present a highly competing scheme against the phased array radar techniques.


    Zugriff

    Zugriff prüfen

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Titel :

    Filter-Bank-Enabled Leaky-Wave Antenna Array Technique for Full-Band-Locked Radar System in Stitched Frequency-Space Domain


    Beteiligte:
    Zheng, Dongze (Autor:in) / Wu, Ke (Autor:in)


    Erscheinungsdatum :

    01.06.2023


    Format / Umfang :

    4538123 byte




    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



    An Asymmetric Feeding X-Band Active Frequency-Scanning Leaky-Wave Antenna

    Cheng Chi Hu / Jin Jei Wu / Jou, C. F. | British Library Online Contents | 1997


    The Wide/Multi Band Leaky Wave Lens Antenna

    Neto, A. / Bruni, S. / Gerini, G. et al. | British Library Conference Proceedings | 2005


    Terahertz: Leaky-wave antenna

    British Library Online Contents | 2015


    Active Frequency-Tune Beam-Scanning Leaky-Wave Antenna Arrays

    Chien Jen Wang / Jin Jei Wu / Jou, C. F. | British Library Online Contents | 1998


    A Gunn-Diode Active Leaky-Wave Frequency Scanning Antenna

    Shing Horng Lee / Jou, C. F. / Chien Ping Lee et al. | British Library Online Contents | 1998