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    Meta-surface wall suppression of mutual coupling between microstrip patch antenna arrays for THz-band applications

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    59b_Alibak_MetasurfaceWall.pdf (709.8Kb)
    Date
    2018
    Author
    Alibakhshikenari, Mohammad 
    Virdee, Bal S. 
    Shukla, Panchamkumar 
    See, Chan H. 
    Falcone Lanas, Francisco Javier Upna
    Version
    Acceso abierto / Sarbide irekia
    xmlui.dri2xhtml.METS-1.0.item-type
    Artículo / Artikulua
    Version
    Versión publicada / Argitaratu den bertsioa
    Project Identifier
    EC/H2020/722424 openaire
    Impact
     
     
     
    10.2528/PIERL18021908
     
     
     
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    Abstract
    This paper presents a novel 2D meta-surface wall to increase the isolation between microstrip patch radiators in an antenna array that is operating in the teraherz (THz) band of 139-141 GHz for applications including communications, medical and security screening systems. The meta-surface unit-cell comprises conjoined twin 'Y-shape' microstrip structures, which are inter-digitally interleaved tog ... [++]
    This paper presents a novel 2D meta-surface wall to increase the isolation between microstrip patch radiators in an antenna array that is operating in the teraherz (THz) band of 139-141 GHz for applications including communications, medical and security screening systems. The meta-surface unit-cell comprises conjoined twin 'Y-shape' microstrip structures, which are inter-digitally interleaved together to create the meta-surface wall. The proposed meta-surface wall is free of via holes and defected ground-plane hence easing its fabrication. The meta-surface wall is inserted tightly between the radiating elements to reduce surface wave mutual coupling. For best isolation performance the wall is oriented orthogonal to the patch antennas. The antenna array exhibits a gain of 9.0 dBi with high isolation level of less than -63 dB between transmit and receive antennas in the specified THz-band. The proposed technique achieves mutual coupling suppression of more than 10 dB over a much wider frequency bandwidth (2 GHz) than achieved to date. With the proposed technique the edge-to-edge gap between the transmit and receive patch antennas can be reduced to 2.5 mm. Dimensions of the transmit and receive patch antennas are 5×5 mm2 with ground-plane size of 9×4.25 mm2 when being constructed on a conventional lossy substrate with thickness of 1.6 mm. [--]
    Subject
    Meta-surface walls, Antenna arrays, Isolation
     
    Publisher
    EMW Publishing
    Published in
    Progress In Electromagnetics Research Letters, 2018, 75, 105-111
    Departament
    Universidad Pública de Navarra. Departamento de Ingeniería Eléctrica, Electrónica y de Comunicación / Nafarroako Unibertsitate Publikoa. Ingeniaritza Elektriko, Elektroniko eta Telekomunikazio Saila
     
    Publisher version
    https://doi.org/10.2528/PIERL18021908
    URI
    https://hdl.handle.net/2454/38722
    Sponsorship
    This work is partially supported by innovation programme under grant agreement H2020-MSCAITN-2016 SECRET-722424 and the financial support from the UK Engineering and Physical Sciences Research Council (EPSRC) under grant EP/E022936/1.
    Appears in Collections
    • Artículos de revista DIEC - IEKS Aldizkari artikuluak [112]
    • Artículos de revista - Aldizkari artikuluak [2924]
    • Investigaciones financiadas por la Unión Europea (OpenAire) - Europar Batasunak finantzatutako ikerketak (OpenAire) [93]
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