İSTE Yazarı "Altıntaş, Olcay" Araştırma Çıktıları | Scopus İndeksli Yayınlar Koleksiyonu İçin Listeleme
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Low-Cost Antenna-Array-Based Metamaterials for Non-Invasive Early-Stage Breast Tumor Detection in the Human Body
Hamza, Musa N.; Abdulkarim, Yadgar I.; Saeed, Salah Raza; Altıntaş, Olcay; Mahmud, Rashad H.; Appasani, Bhargav; Ravariu, Cristian (MDPI, 2022)Microstrip patch antennas have been used in many applications since their appearance. Despite their great promise, their narrow bandwidth and the loss at high-frequency bands have limited their usage in medical applications. ... -
Metamaterial absorber sensor design by incorporating swastika shaped resonator to determination of the liquid chemicals depending on electrical characteristics
Abdulkarim, Yadgar I.; Deng, Lianwen; Altıntaş, Olcay; Ünal, Emin; Karaaslan, Muharrem (Elsevier, 2019)In this work, sensor abilities of the metamaterial absorber based on swastika shaped resonator are developed both theoretically and experimentally at X-band frequency range. The structure is consisted of a swastika shaped ... -
Metamaterial absorber-based multisensor applications using a meander-line resonator
Akgöl, Oğuzhan; Altıntaş, Olcay; Dalkılınç, Elif Eda; Ünal, Emin; Karaaslan, Muharrem; Sabah, Cumali (Society of Photo-Optical Instrumentation Engineers, 2017)A metamaterial (MTM) absorber-based multifunctional sensor is numerically and experimentally realized using meander-line resonators. The proposed sensor device can be used to measure pressure, density, and humidity with ... -
Metamaterial based sensor integrating transmission line for detection of branded and unbranded diesel fuel
Tamer, Ahmet; Karadağ, Faruk; Ünal, Emin; Abdulkarim, Yadgar I.; Deng, Lianwen; Altıntaş, Olcay; Karaaslan, Muharrem (Elsevier, 2020)In this paper, a high sensitive metamaterial - based liquid sensor employing microstrip transmission line have been designed and investigated for detection of authentic and inauthentic diesel samples both numerically and ... -
Metamaterial inspired sensor for detection of engine lubricant oil condition
Altıntaş, Olcay; Aksoy, Murat; Ünal, Emin; Karaaslan, Muharrem (American Institute of Physics Inc., 2019)A metamaterial (MTM) based sensor structure is proposed to determine engine lubricant condition at X band frequency regime. The resonator part of the structure is inspired electric LC resonator (ELC) type MTM which is ... -
Microfluidic and Fuel Adulteration Sensing by Using Chiral Metamaterial Sensor
Bakır, Mehmet; Karaaslan, Muharrem; Ünal, Emin; Karadağ, Faruk; Alkurt, Fatih Özkan; Altıntaş, Olcay; Dalgaç, Şekip; Sabah, Cumali (The Electrochemical Society, 2018)In this study, Chiral Metamaterial Sensor (CMS), which is designed by utilizing a Split Ring Resonators (SRR) has been employed to reveal the two different types of sensor applications by experimentally and numerically. ... -
Microwave power imaging detector based on metamaterial absorber
Alkurt, Fatih Özkan; Altıntaş, Olcay; Bakır, Mehmet; Karaaslan, Muharrem; Ünal, Emin; Karadağ, Faruk; Akgöl, Oğuzhan; Sabah, Cumali (SPIE, 2020)Our paper presents the design, fabrication, and characterization of metamaterial absorber-based microwave imaging detector that is operating in industrial, scientific, and medical (ISM) band. The results reveal that the ... -
A monostatic RCS reduction study for an antenna in structural mode at X band
Altıntaş, Olcay (Taylor and Francis, 2023)In this paper, a radar cross-section (RCS) reduction of a microstrip antenna is investigated both experimentally and numerically. A traditional metal ground plane antenna and a bandstop frequency selective surface (FSS) ... -
Multi-band polarization independent cylindrical metamaterial absorber and sensor application
Dinçer, Furkan; Karaaslan, Muharrem; Çolak, Şule; Tetik, Erkan; Akgöl, Oğuzhan; Altıntaş, Olcay; Sabah, Cumali (World Scientific Publishing Co. Pte Ltd, 2016)A multi-band perfect metamaterial absorber (MA) based on a cylindrical waveguide with polarization independency is numerically presented and investigated in detail. The proposed absorber has a very simple configuration, ... -
Novel Metamaterials-Based Hypersensitized Liquid Sensor Integrating Omega-Shaped Resonator with Microstrip Transmission Line
Abdulkarim, Yadgar I.; Deng, Lianwen; Karaaslan, Muharrem; Altıntaş, Olcay; Awl, Halgurd N.; Muhammadsharif, Fahmi F.; Liao, Congwei; Ünal, Emin; Luo, Heng (Mdpi, 2020)In this paper, a new metamaterials-based hypersensitized liquid sensor integrating omega-shaped resonator with microstrip transmission line is proposed. Microwave transmission responses to industrial energy-based liquids ... -
Octagonal Shaped Metamaterial Absorber Based Energy Harvester
Alkurt, Fatih Özkan; Altıntaş, Olcay; Bakır, Mehmet; Tamer, Ahmet; Karadağ, Faruk; Bağmancı, Mehmet; Karaaslan, Muharrem; Ünal, Emin; Akgöl, Oğuzhan (Kaunas University of Technology, 2018)In this study, a novel octagonal shaped metamaterial based broadband absorber is proposed for energy harvesting at WIMAX wireless communication band. The proposal has an absorption of 99.97 % at 5.5 GHz with a bandwidth ... -
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 ... -
Sensory applications of resonator based metamaterial absorber
Bakır, Mehmet; Karaaslan, Muharrem; Akgöl, Oğuzhan; Altıntaş, Olcay; Ünal, Emin; Sabah, Cumali (Elsevier GmbH, 2018)Metamaterials are attractive media for scientific society for their potential multi-functional and a wide range of applications due to their unusual electromagnetic properties. In this paper, we present several important ... -
Simulated and experimental studies of a multi-band symmetric metamaterial absorber with polarization independence for radar applications
Ali, Hema O.; Al-Hindawi, Asaad M.; Abdulkarim, Yadgar, I.; Nugoolcharoenlap, Ekasit; Tippo, Tossapol; Alkurt, Fatih Özkan; Altıntaş, Olcay; Karaaslan, Muharrem (Institute of Physics, 2022)We develop a simple new design for a multi-band metamaterial absorber (MTMA) for radar applications. Computer Simulation Technology (CST) Studio Suite 2018 was used for the numerical analysis and absorption study. The ... -
A Split Meander Line Resonator-Based Permittivity and Thickness Sensor Design for Dielectric Materials with Flat Surface
Altıntaş, Olcay; Aksoy, Murat; Ünal, Emin; Karakaşlı, Fatoş; Karaaslan, Muharrem (Springer, 2018)A metamaterial-based permittivity and thickness sensor structure for dielectric substrate material has been proposed at the X band frequency regime. The sensor structure is designed by using a split meander line type ... -
A Symmetrical Terahertz Triple-Band Metamaterial Absorber Using a Four-Capacitance Loaded Complementary Circular Split Ring Resonator and an Ultra-Thin ZnSe Substrate
Abdulkarim, Yadgar, I.; Alkurt, Fatih Özkan; Awl, Halgurd N.; Altıntaş, Olcay; Muhammadsharif, Fahmi F.; Appasani, Bhargav; Bakır, Mehmet; Karaaslan, Muharrem; Taouzari, Mohamed; Dong, Jian (MDPI, 2022)In this research work, a symmetrical four-capacitance loaded complementary circular split ring resonator is proposed, which uses an ultra-thin Zinc Selenide (ZnSe) substrate to realize a low-profile triple-band metamaterial ... -
Transmission Line Integrated Metamaterial Based Liquid Sensor
Tamer, Ahmet; Alkurt, Fatih Özkan; Altıntaş, Olcay; Karaaslan, Muharrem; Ünal, Emin; Akgöl, Oğuzhan; Karadağ, Faruk; Sabah, Cumali (Electrochemical Society Inc., 2018)In this work, transmission line based metamaterial liquid sensor is proposed to determine the authentic and inauthentic gasoline samples. Proposed structure consists of transmission line integrated metamaterial based ... -
Tree-shaped fractal metamaterial multiband absorber for C- and X-band applications
Abbas, Muhammad Basir; Baqir, Muhammad Abuzar; Altıntaş, Olcay; Karaaslan, Muharrem; Abbas, Musarat (Taylor and Francis Ltd., 2022)Recently, multiband metamaterial absorbers have gained considerable attention from research and development communities due to their applications in filtering, stealth, and sensing. However, these multiband absorbers are ... -
Tunable energy harvesting on UHF bands especially for GSM frequencies
Bakır, Mehmet; Karaaslan, Muharrem; Altıntaş, Olcay; Bağmancı, Mehmet; Akdoğan, Volkan; Temurtaş, Feyzullah (Cambridge University Press, 2018)Metamaterial-based energy harvesting structures operating at GSM goo and GSM 1800 frequency bands have been proposed. The basic structure is composed of four nested U-shaped elements on the front and back side of the ... -
Utilization of a triple hexagonal split ring resonator (SRR) based metamaterial sensor for the improved detection of fuel adulteration
Abdulkarim, Yadgar I.; Dalgaç, Şekip; Alkurt, Fatih Özkan; Muhammadsharif, Fahmi F.; Awl, Halgurd N.; Saeed, Salah Raza; Altıntaş, Olcay; Li, Chen; Bakır, Mehmet; Karaaslan, Muharrem; Ameen, Mohammad; Chaudhary, Raghvendra Kumar; Luo, Heng (Springer, 2021)In this work, a triple hexagonal split ring resonator incorporated metamaterial sensor is proposed for the improved detection of fuel adulteration. The proposed metamaterial structure is made of three resonators, acting ...