A variety of military systems employ multiple antenna apertures on a single platform such as a ship or an aircraft. In order to reduce cost and improve performance characteristics such as the radar cross section (RCS), it is desirable to combine multiple functions into a single aperture. Wide (10:1) bandwidth phased array antennas are needed to accomplish this goal. To satisfy multi-mission roles from a single aperture over a 10:1 bandwidth requires an array that can be quickly reconfigured to operate efficiently over sub-bands corresponding to the various application frequencies. Array reconfigurability includes the ability to select operating frequency bands for the radiating elements and reconfigure the aperture illumination function with electronic control of the feed network in order to create any required radiation pattern. The goal of this research is to develop and demonstrate a grating lobe free REConFigurable Aperture Decade Bandwidth phased ARray (RECAP DEAR) using control devices. Because of their small size and superior electrical characteristics, MEMS (microelectro-mechanical systems) switches are the device of choice. This paper addresses the array architecture and the design of a radiating aperture that may be reconfigured to provide a tunable phased array with an effective 10:1 operating frequency bandwidth. An array design based on a TEM horn with a switchable ground plane is used to illustrate the important concepts. We discuss a canonical array design to cover a 60 degrees conical scan volume over the 2-20 GHz frequency band.


    Zugriff

    Zugriff über TIB

    Verfügbarkeit in meiner Bibliothek prüfen

    Bestellung bei Subito €


    Exportieren, teilen und zitieren



    Reconfigurable aperture

    NIGEL EDWARD DEEKS / ERIC JOHN HEWITT / PHILIP SIMON NETTLESHIP | Europäisches Patentamt | 2024

    Freier Zugriff

    RECONFIGURABLE DISPLAY WITH CAMERA APERTURE THERETHROUGH

    DAVIS J ROGER / UGLUM PAUL A | Europäisches Patentamt | 2018

    Freier Zugriff

    RECONFIGURABLE DISPLAY WITH CAMERA APERTURE THERETHROUGH

    DAVIS J ROGER / UGLUM PAUL A | Europäisches Patentamt | 2018

    Freier Zugriff

    Bandpass Filter With In-Orbit Reconfigurable Bandwidth

    Sidiropoulos, Nikolas / Scialino, Lorenzo / Morini, Antonio et al. | AIAA | 2013


    BANDPASS FILTER WITH IN-ORBIT RECONFIGURABLE BANDWIDTH

    Sidiropoulos, N. / Scialino, L. / Morini, A. et al. | British Library Conference Proceedings | 2013