WoS İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://gcris.yasar.edu.tr/handle/123456789/11289

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Browsing WoS İndeksli Yayınlar Koleksiyonu by Publisher "Advanced Electromagnetics"

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    Article
    Citation - WoS: 4
    Citation - Scopus: 4
    Base station antenna with enhanced cross polarization discrimination performance by using horizontal meandered dipoles and vertical parasitic elements
    (Advanced Electromagnetics, 2019) Orhan Murat Kadagan; Ceyhan Türkmen; Mustafa Seçmen; Kadagan, Orhan Murat; Secmen, Mustafa; Turkmen, Ceyhan
    In this study the design and implementation of a ±45° dual polarized base station antenna with improved cross-polarization discrimination (XPD) values are presented. In order to increase the cross polarization parasitic elements are added to antenna design which are formed by two orthogonal dipoles above ground plane. The overall antenna and radiator sizes are diminished by using meandered dipoles. The designed compact antenna has VSWR of 2:1 within 1.71-2.69 GHz frequency band which covers GSM 1800/3G/LTE bands. In the given bandwidth minimum gain of the designed antenna is 0 dBi within the beamwidth of 120° (± 60°) at azimuth plane (ϕ = 0°). Minimum XPD value of 2 dB is achieved between 1.71-2.4 GHz for ±60° beamwidth without parasitic elements where XPD values are improved to minimum 10 dB by using thick parasitic elements. The designed antenna is manufactured where return losses for both port 1 and port 2 are measured to be higher than 10 dB and the isolation between ports is more than 20 dB. In addition the measured peak gain values are varied between 3 dB and 7 dB in frequency range of 1.71 GHz-2.69 GHz. XPD values are measured better than almost 10 dB in the given frequency band. © 2021 Elsevier B.V. All rights reserved.
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    Article
    Citation - WoS: 24
    Citation - Scopus: 28
    The prototype of a wideband Ku-band conical corrugated horn antenna with 3-D printing technology
    (Advanced Electromagnetics, 2019) Mustafa Emre Carkaci; Mustafa Seçmen; Secmen, Mustafa; Carkaci, Mustafa Emre
    This study is about the design and production of a conical corrugated horn antenna used to feed reflector antennas in satellite communication (direct broadcast satellite-DBS) systems. The antenna designed with CST Microwave Studio program operates within wideband of 10.5-18.5 GHz at Ku-band. The prototype is realized with new generation 3D printing technology and conductive paint coating method which makes the antenna lightweight and provides low cost and faster production. According to measurement results the antenna has return loss almost better than 20 dB gain value of minimum 14.5 dBi and sidelobe level of-18 dB at most within 1.76:1 frequency bandwidth. Antenna is observed to have a gain loss of at most 1.5-2 dB within the band as compared to the same antenna with high conductivity metal which needs higher cost and production time for the manufacturing. © 2021 Elsevier B.V. All rights reserved.