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Investigation of microwave power limiter for Industrial Scientific Medical band (ISM) applications 

Sardi, Azzeddine; Alkurt, Fatih Özkan; Özkaner, Vedat; Karaaslan, Muharrem; Ünal, Emin; Mohamed, Taouzari (Wiley, 2020)
In this paper, a new design of microstrip power limiter which is based on microstrip technology and zero bias Schottky diode is introduced. In this context, the FR-4 substrate that was characterized by dielectric permittivity ...
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Multipurpose chemical liquid sensing applications by microwave approach 

Karatepe, Ayşegül; Akgöl, Oğuzhan; Abdulkarim, Yadgar I.; Dalgaç, Şekip; Muhammadsharif, F.F.; Awl, Halgurd N.; Deng, Lianwen; Ünal, Emin; Karaaslan, Muharrem; Heng, Luo; Huang, Shengxiang (Public Library of Science, 2020)
In this work, a novel sensor based on printed circuit board (PCB) microstrip rectangular patch antenna is proposed to detect different ratios of ethanol alcohol in wines and isopropyl alcohol in disinfectants. The proposed ...
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C-shaped split ring resonator type metamaterial antenna design using neural network 

Sağık, Metin; Karaaslan, Muharrem; Ünal, Emin; Akgöl, Oğuzhan; Bakır, Mehmet; Akdoğan, Volkan; Özdemir, Ersin; Abdulkarim, Yadgar I. (SPIE, 2021)
A C-shaped split ring resonator-based metamaterial (MTM) structure placed on a patch antenna is proposed. An artificial neural network (ANN) is applied to design and determine dimensions of an MTM structure that is similar ...
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Investigation of cotton fabric composites as a natural radar-absorbing material 

Ayan, Muhammet Çağrı; Kiriş, Serap; Yapıcı, Ahmet; Karaaslan, Muharrem; Akgöl, Oğuzhan; Altıntaş, Olcay; Ünal, Emin (Emerald Group Publishing Ltd., 2020)
Purpose The purpose of this paper is to investigate cotton fabric behavior that is exposed to radar waves between selected operation frequencies as an alternative radar-absorbing material (RAM) response. Cotton fabric ...
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Seismic metamaterials for low-frequency mechanical wave attenuation 

Kaçın, Selçuk; Öztürk, Murat; Sevim, Umur Korkut; Mert, Bayram Ali; Özer, Zafer; Akgöl, Oğuzhan; Ünal, Emin; Karaaslan, Muharrem (Springer, 2021)
In this study, a triangular array of cylindrical holes was shown to function as a local resonator to seismic metamaterials against the vibration generator loading in the geophysics concept. The field test showed that the ...
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Optimizing the Gain and Directivity of a Microstrip Antenna with Metamaterial Structures by Using Artificial Neural Network Approach 

Sağık, Metin; Altıntaş, Olcay; Ünal, Emin; Özdemir, Ersin; Demirci, Mustafa; Çolak, Şule; Karaaslan, Muharrem (Springer, 2021)
The purpose of this study is to improve the gain and directivity of the microstrip patch antenna by means of metamaterial (MTM) structures. As it is known, antennas have power densities in a certain direction, and the ...
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Wideband Microwave Absorber Comprising Metallic Split-Ring Resonators Surrounded With E-Shaped Fractal Metamaterial 

Bilal, Rana Muhammad Hasan; Baqir, Muhammad Abuzar; Choudhury, Pankaj Kumar; Karaaslan, Muharrem; Ali, Muhammad Mahmood; Altıntaş, Olcay; Rahim, Arbab Abdur; Ünal, Emin; Sabah, Cumali (Institute of Electrical and Electronics Engineers Inc., 2021)
A specially designed metallic E-shaped fractal-based perfect metamaterial absorber (PMA) with fairly wideband absorptivity in the K- and Ka-bands of the microwave regime was investigated. The PMA top surface is comprised ...
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Metamalzeme Yapılarıyla Fraktal Anten Parametrelerinin İyileştirilmesi 

Ünal, Emin; Doğan, Ceren (Çukurova Üniversitesi, 2020)
Bu çalışmada 5,47 GHz’de çalışan bir fraktal anten tasarımı yapılmış ve bu antenin yönlülüğünün, kazancının ve verimliliğinin Metamalzemeli yapılar kullanılarak iyileştirilmesi amaçlanmıştır. FIT tabanlı simülasyon programı ...
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Experimental verification of phononic crystal based on square arrays of cylindrical holes against seismic vibrations in full-scale systems: modeling, sensing and signal processing of seismic vibrations 

Kaçın, Selçuk; Öztürk, Murat; Sevim, Umur Korkut; Karaaslan, Muharrem; Özer, Zafer; Akgöl, Oğuzhan; Mert, Bayram Ali; Ünal, Emin (Springer, 2021)
In this study, phononic crystals reducing the earthquake effects will be determined and prototypes will be constructed which can give the opportunity to reduce the effects of seismic waves. Furthermore, test results will ...
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Investigation of methanol contaminated local spirit using metamaterial based transmission line sensor 

Dalgaç, Şekip; Akdoğan, Volkan; Kiriş, Serap; İncesu, Ayşe; Akgöl, Oğuzhan; Ünal, Emin; Başar, Mustafa Tunahan; Karaaslan, Muharrem (Elsevier, 2021)
A metamaterial-based transmission line sensor was designed to determine the amount of methanol in methanol-contaminated local spirit samples both numerically and experimentally. The proposed sensor consists of a square ...
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Karaaslan, Muharrem (23)Akgöl, Oğuzhan (13)Abdulkarim, Yadgar I. (8)Altıntaş, Olcay (8)Alkurt, Fatih Özkan (6)Dalgaç, Şekip (6)Sabah, Cumali (6)Sevim, Umur Korkut (6)Öztürk, Murat (6)... View MoreSubjectMetamaterials (11)Engineering (9)Metamaterial (8)Physics (7)Sensor (7)Antenna (6)Absorber (5)Electric lines (4)Microstrip antennas (4)Multidisciplinary (4)... View MoreDate Issued2020 (14)2021 (8)2022 (3)Has File(s)
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