Yazar "Karaaslan, Muharrem" için listeleme
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Design of a Broadband Coplanar Waveguide-Fed Antenna Incorporating Organic Solar Cells with 100% Insolation for Ku Band Satellite Communication
Abdulkarim, Yadgar I.; Deng, Lianwen; Awl, Halgurd N.; Muhammadsharif, Fahmi F.; Altıntaş, Olcay; Karaaslan, Muharrem; Luo, Heng (Mdpi, 2020)A broadband coplanar waveguide (CPW)-fed monopole antenna based on conventional CPW-fed integration with an organic solar cell (OSC) of 100% insolation is suggested for Ku band satellite communication. The proposed ... -
Design of a Dual Band Metamaterial Absorber for Wi-Fi Bands
Alkurt, Fatih Özkan; Bağmancı, Mehmet; Karaaslan, Muharrem; Bakır, Mehmet; Altıntaş, Olcay; Karadağ, Faruk; Akgöl, Oğuzhan; Ünal, Emin (American Institute of Physics Inc., 2018)The goal of this work is to design and fabrication of a dual band metamaterial based absorber for Wireless Fidelity (Wi-Fi) bands. Wi-Fi has two different operating frequencies such as 2.45 GHz and 5 GHz. A dual band ... -
Design of a linear to circular polarization converter integrated into a concrete construction for radome applications
Öztürk, Murat; Sevim, Umur Korkut; Altıntaş, Olcay; Ünal, Emin; Akgöl, Oğuzhan; Karaaslan, Muharrem; Sabah, Cumali (Cambridge University Press, 2021)In this paper, we present a linear to circular polarization converter integrated in a concrete structure to eliminate signal transmission problem originated from the concrete buildings in microwave regime. Two polarization ... -
Design of a wide band metasurface as a linear to circular polarization converter
Altıntaş, Olcay; Ünal, Emin; Akgöl, Oğuzhan; Karaaslan, Muharrem; Karadağ, Faruk; Sabah, Cumali (World Scientific Publishing Co. Pte Ltd, 2017)In this paper, we present a wide band metasurface (MS) polarization converter which converts a linearly polarized signal to a right-handed or left-handed circularly polarized signal both numerically and experimentally. The ... -
Design of metasurface polarization converter from linearly polarized signal to circularly polarized signal
Akgöl, Oğuzhan; Ünal, Emin; Altıntaş, Olcay; Karaaslan, Muharrem; Karadağ, Faruk; Sabah, Cumali (Elsevier GmbH, 2018)In this study, we both numerically and experimentally present a metasurface (MS) polarization converter to transform linearly polarized signal into circularly polarized one. The unit cell consists of two rectangular metallic ... -
Detection and quantification of alkali-silica-reaction (ASR) gel in cement-based mortars using microwave spectral and temporal transmission properties
Hasar, Uğur Cem; Öztürk, Hamdullah; Korkmaz, Hüseyin; Taşdemir, Ahmet; Bute, Musa; Niş, Anıl; Karaaslan, Muharrem; Çevik, Abdülkadir; Özkaya, Mehmet Akif (Elsevier, 2023)Microwave transmission measurements in time-domain, as a new measurement tool, were carried out to detect and quantify alkali-silica-reaction (ASR) within mortar specimens. To examine the potential of time-domain transmission ... -
The Detection of Chemical Materials with a Metamaterial-Based Sensor Incorporating Oval Wing Resonators
Abdulkarim, Yadgar I.; Deng, Lianwen; Karaaslan, Muharrem; Dalgaç, Şekip; Mahmud, Rashad Hassan; Alkurt, Fatih Özkan; Muhammadsharif, Fahmi F.; Awl, Halgurd N.; Huang, Shengxiang; Luo, Heng (MDPI, 2020)The detection of branded and unbranded chemical materials is essential for the quality control assessment. In this work, a metamaterial inspired sensor is designed and fabricated, which incorporates oval-shaped wing ... -
Determination of frying sunflower oil usage time for local potato samples by using microwave transmission line based sensors
Erdoğan, Maide; Ünal, Emin; Alkurt, Fatih Özkan; Abdulkarim, Yadgar, I.; Deng, Lianwen; Karaaslan, Muharrem (Elsevier, 2020)Amount of oil usage time can be determined by microwave measurements instead of using complex laboratory equipments to measure oil parameters such as viscosity, base number, refractive index, acid numbers, density, water ... -
Determination of physical properties of concrete by using microwave nondestructive techniques
Öztürk, Murat; Sevim, Umur Korkut; Akgöl, Oğuzhan; Ünal, Emin; Karaaslan, Muharrem (Applied Computational Electromagnetics Society (ACES), 2018)Determination of the electrical properties of concretes with different water/cement ratios and investigation of the relationship between their electrical and mechanical properties is a promising technique towards improving ... -
Determination of the liquid chemicals depending on the electrical characteristics by using metamaterial absorber based sensor
Abdulkarim, Yadgar I.; Deng, Lianwen; Karaaslan, Muharrem; Ünal, Emin (Elsevier, 2019)In this paper, the metamaterial absorber based chemical sensor has been designed and measured experimentally. The proposed structure composed of gammadion copper resonator on the top of the FR4 substrate. There is an air ... -
Direct Analysis of Chlorine Ionized Cement-Based Composites and Its Sensor Application By 2,5GHz Antennas
Öztürk, Murat; Alkurt, Fatih Özkan; Sevim, Umur Korkut; Akgöl, Oğuzhan; Karaaslan, Muharrem (Osmaniye Korkut Ata Üniversitesi, 2023)In this paper, we propose a system that discriminate cement-based composite including sea sand by using microwave patch antennas. The composites with sea sand have vital importance in construction engineering industry ... -
Double split ring resonator based microfluidic sensor for wastewater treatment applications
Altıntaş, Olcay; Aksoy, Mahmut; Ünal, Emin; Karaaslan, Muharrem (American Institute of Physics Inc., 2019)In this study, microfluidic sensor structure has been proposed for wastewater treatment applications. Resonator part of the proposed sensor consist of double split ring resonator (DSSR) integrated transmission lines to ... -
Dynamic and tunable chiral metamaterials with wideband constant chirality over a certain frequency band
Dinçer, Furkan; Karaaslan, Muharrem; Akgöl, Oğuzhan; Ünal, Emin; Sabah, Cumali (Elsevier GmbH, 2015)We present numerically and experimentally a dynamic chiral metamaterial (MTM) that creates strong optical activity and circular dichroism. The proposed tunable structure has a very simple and more efficient configuration ... -
Dynamical chiral metamaterial with giant optical activity and constant Chirality over a certain frequency band
Karadağ, Faruk; Çömez, İbrahim; Dinçer, Furkan; Bakır, Mehmet; Karaaslan, Muharrem (Applied Computational Electromagnetics Society (ACES), 2016)We demonstrate numerically and experimentally a dynamical chiral metamaterial that uniaxially creates giant optical activity and circular dichroism. In addition, the structure gives a high negative refractive index due to ... -
An easy-to-produce HIS-based MIMO radio altimeter antenna design for aircraft
Kiriş, Serap; Karaaslan, Muharrem (Emerald Publishing, 2023)PurposeThe purpose of this study is to design a radio altimeter antenna whose production process is facilitated and can work with multiple-input multiple-output (MIMO) properties to provide space gain on the aircraft.Des ... -
Electromagnetic Analysis of Organic Waste and Blust Furnace Slag Mixtures
Baltacıoğlu, Mustafa; Başar, Mustafa Tunahan; Karaaslan, Muharrem; Alkurt, Fatih Özkan; Arıpek, Samet Alparslan (European Mechanical Science, 2021)In this experimental study, a composite structure was obtained by combining apple pulp wastes with slag wastes. Electromagnetic field characteristics of test samples have been determined. In the scope of the study, dry ... -
Electromagnetic energy harvesting and density sensor application based on perfect metamaterial absorber
Bakır, Mehmet; Karaaslan, Muharrem; Dinçer, Furkan; Akgöl, Oğuzhan; Sabah, Cumali (World Scientific Publishing Co. Pte Ltd, 2016)The proposed study presents an electromagnetic (EM) energy harvesting and density sensor application based on a perfect metamaterial absorber (MA) in microwave frequency regime. In order to verify the absorption behavior ... -
An electromagnetic non-destructive approach to determine dispersion and orientation of fiber reinforced concretes
Öztürk, Murat; Sevim, Umur Korkut; Akgöl, Oğuzhan; Karaaslan, Muharrem; Ünal, Emin (Elsevier, 2019)Including fibers in concretes improves their mechanical properties such as flexural strength, impact load resistance and limited crack propagation. The dispersion, orientation and types of the fibers placed in the concretes ... -
Electromagnetic Scattering Properties of MWCNTs/Graphene Doped Epoxy Layered with PVC Nanofiber/E-Glass Composites
Özkan, Vildan; Yapıcı, Ahmet; Karaaslan, Muharrem; Akgöl, Oğuzhan (Springer, 2020)In this study, composites composed of glass fiber reinforced-epoxy laminates interleaved with electrospun polyvinylchloride (PVC) nano-fibres were designed for radar absorption investigations. The laminated composites which ... -
Electromagnetic simulations of polarization-insensitive and wide-angle multiband metamaterial absorber by incorporating double asterisk resonator
Abdulkarim, Yadgar I.; Deng, Lianwen; Luo, Heng; Huang, Shengxiang; He, Longhui; Li, Yuhan; Muhammadsharif, Fahmi F.; Altıntaş, Olcay; Sabah, Cumali; Karaaslan, Muharrem (Indian Acad Sciences, 2020)A novel multiband metamaterial absorber (MTMA) is proposed which is capable of well presenting a polarization-insensitive and wide incident angle stability in the microwave frequency range. The proposed MTMA comprising two ...
