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Byun, Gangil
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Surface Wave Suppression for Improved Isolation and Bore-Sight Gain Based on Dipole Moment Conversion

DC Field Value Language Nguyen, Thi Hai-Yen ko Kim, Young-Wan ko Park, Jongkuk ko Ahn, Se-Hwan ko Joo, Ji-Han ko Choo, Hosung ko Byun, Gangil ko 2023-01-12T06:31:57Z - 2023-01-10 ko 2022-12 ko
dc.identifier.citation IEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, v.70, no.12, pp.11892 - 11900 ko
dc.identifier.issn 0018-926X ko
dc.identifier.uri -
dc.description.abstract This article proposes a novel approach to surface wave suppression based on dipole moment conversion for isolation and bore-sight gain improvement. To transform the power associated with the surface wave into the source of the radiating wave, an inverted-L shape composed of a thin strip with a via post is adopted. Unlike the conventional mushroom structure, the via post is placed at the leading edge of the strip, so that the longitudinal edge of the strip is aligned with the propagation direction of the surface wave. This inverted-L structure plays a key role in converting the vertical electric dipole moment to the horizontal component, and the conversion efficiency can be further improved by arranging the structure with a narrower interval of 0.057λ in the axis perpendicular to the propagation direction. For validation, multipole moments are calculated from induced currents, and the proposed metasurface is fabricated for two array configurations. Scattering parameters and near- and far-fields are measured to demonstrate the proposed approach experimentally. The fabricated metasurface shows an operating frequency band from 9.74 GHz to 10.62 GHz, and its average isolation and bore-sight gain are improved by 6.3 dB and 1.6 dB, respectively, without any severe distortion on impedance matching. ko
dc.language 영어 ko
dc.publisher Institute of Electrical and Electronics Engineers ko
dc.title Surface Wave Suppression for Improved Isolation and Bore-Sight Gain Based on Dipole Moment Conversion ko
dc.type ARTICLE ko
dc.identifier.scopusid 2-s2.0-85139830460 ko
dc.identifier.wosid 000928163000075 ko
dc.type.rims ART ko
dc.identifier.doi 10.1109/tap.2022.3211339 ko
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