Aydın, Elif

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A., Elif
E.,Aydın
E.,Aydin
Aydin,E.
E., Aydin
Aydın, Elif
Elif, Aydin
Aydin, Elif
Aydın,E.
A.,Elif
Elif, Aydın
Aydin, E
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Profesör Doktor
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elif.aydin@atilim.edu.tr
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Department of Electrical & Electronics Engineering
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Former Staff
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Scholarly Output

89

Articles

34

Citation Count

219

Supervised Theses

13

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Now showing 1 - 10 of 86
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    Conference Object
    Citation - Scopus: 1
    Design and Analysis of Rectangular Dielectric Rod Antennas;
    (Institute of Electrical and Electronics Engineers Inc., 2015) Demir,M.; Özkök,M.A.; Çalişkan,F.; Aydin,E.; Department of Electrical & Electronics Engineering
    In this study, rectangular dielectric rod antennas with different dimensions and different shapes are designed and analyzed using HFSS simulation software. To analyze the effects of these changes, five different antennas are designed and antenna gains and return loss values are compared. © 2015 IEEE.
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    Master Thesis
    Çift bant üçgen yama antenlerde rezonans frekansının hesaplanması
    (2011) Can, Sultan; Aydın, Elif; Department of Electrical & Electronics Engineering
    Bu çalışmada, eşkenar üçgen yama antenlerin ve çift frekanslı eşkenar üçgen yama antenlerinin çalışma frekanslarının hesaplanması üzerinde durulmuştur. Eşkenar üçgen yama antenin rezonant frekanslarının bulunmasında iki model önerilmiştir. Önerilen her iki model kovuk modeli ile analiz edilmiş olup etkin kenar uzunluğu ifadeleri kullanılmıştır. Birinci ve ikinci modellerde sırası ile dinamik ve etkin dielektrik sabiti ifadelerine yer verilmiştir. Modellerin sonuçları CST benzetimi sonuçları, deney sonuçları ve literatürdeki teorik sonuçlar ile kıyaslanmış, daha kesin sonuçlar elde edilmiştir. Çalışmada çift frekanslı eşkenar üçgen yama antenlerin çalışma frekanslarının hesaplanmasına da yer verilmiştir. Çalışmadaki anten kısa devre iğnesi ile kısa devre yapılarak, çift frekanslı eşkenar üçgen oluşturulmuştur. Üst ve alt frekanslarının hesaplanmasında empirik bir formül geliştirilmiştir. Sonuçlar ölçüm sonuçları ve iletim hattı modeli sonuçları ile kıyaslanmıştır. Tüm sonuçlar literatür değerleri ile kıyaslanıp, tartışılmıştır.
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    Article
    Design and Development of a Remote and Virtual Environment for Experimental Training in Electrical and Electronics Engineering
    (2010 9th International Conference on Information Technology Based Higher Education and Training (ITHET), 2010) Kara, Ali; Aydın, Elif; Özbek, Mehme Efe; Çağıltay, Nergiz; Department of Electrical & Electronics Engineering; Software Engineering
    European Remote Radio Laboratory (ERRL) has been developed by the support of European Commission. It intends to provide remote access to high cost devices remotely, and perform experiments in radio frequency (RF), communications and microwave domains of Electrical and Electronics Engineering. The system has been operational for two years, and been integrated into curriculum of some courses. In this work, the hardware and software structures of the system are presented. Then, experimental content and the motivations in the design of the system are discussed.
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    Article
    Teaching Usage of Equipments in a Remote Laboratory
    (2008) Alparslan, Nimet Ceren; Çağıltay, Nergiz; Özen, Mustafa; Aydın, Elif; Department of Electrical & Electronics Engineering; Software Engineering
    Remote laboratories are technologies that aim to increase the effectiveness of educational programs. European Remote Radio Laboratory (ERRL) is an e-learning project for students, teachers and technicians who will use very important devices of a radio frequency laboratory remotely. As a solution we have developed an e-learning system which aims to support the ERRL learners while studying on how to use equipments in the system. The system is developed according to the electronic performance support system (EPSS) approach. An EPSS is a computer-based, well-structured system which improves the performance of individuals. It is an electronic infrastructure that contains, stores and distributes personal (individual) or corporate knowledge to enable people to reach necessary levels of performance in the fastest possible time and with minimum teaching support of other people. This paper discusses how the content for such a system is developed and how this content is interactively used in the EPSS platform. The technical details of the developed EPSS are also discussed in this study. We believe that this paper will help instructional system designers for designing different alternatives to improve learners’ performance.
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    Article
    Maintenance, Sustainability and Extendibility in Virtual and Remote Laboratories
    (Social and Behavioral Sciences, 2011) Kara, Ali; Özbek, Mehmet Efe; Çağıltay, Nergiz; Aydın, Elif; Department of Electrical & Electronics Engineering; Software Engineering
    This study presents discussions on sustainability of Virtual and Remote Laboratories (VRL), and provides challenges toward maintenance of VRLs. Technical and pedagogical issues in extension and sustenance of VRLs are discussed with the experiences of the authors gained in the development of a VRL system, European Remote Radio Laboratory (ERRL) platform. Moreover, the study presents actions to be taken in sustenance plan and expendability of VRL system with the advances in Information and Communication Technologies (ICT) and educational technologies along with the needs of educators and learners in formal education.
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    Conference Object
    Citation - Scopus: 8
    Study of an Rfid Based Moving Object Tracking System
    (2007) Aydin,E.; Öktem,R.; Dinçer,Z.; Akbulut,I.K.; Department of Electrical & Electronics Engineering
    This paper presents a study on localization and tracking of an object carrying an active RFID tag. The study incorporates processing of the signals received from transmitters, in a way to locate and track the coordinate in an indoor environment. During the course of the project, both outdoor and indoor experiments have been conducted. Empirical distance vs signal strength formulations are formed by use of the collected data. Deviation of the reported values from the theory is analyzed, and the effects of reflections from doors, windows, etc. are observed. In order to improve the accuracy of tracking, Bayesian and Kalman Filtering approaches are incorporated.
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    Conference Object
    Citation - Scopus: 0
    Analysis of the Parameters That Effects the Operating Frequencies and Bandwidth of a Cpw-Fed Patch Antenna;
    (2013) Dagdeviren,B.; Yavuz Kapusuz,K.; Can,S.; Aydin,E.; Department of Electrical & Electronics Engineering; Department of Modern Languages
    In this study, the analysis of the effect of antenna parameters to the operating frequency is performed in a coplanar waveguide fed patch antenna. The effect of the size and the substrate of the design dual frequency antenna to the operating frequency and bandwidth are also evaluated. Bandwidth of the upper and lower frequency is also investigated and results are demonstrated. The method to increase the bandwidth is also presented by using the chosen parameters. © 2013 IEEE.
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    Article
    Citation - WoS: 4
    Citation - Scopus: 5
    Neural Network Based Resonant Frequency Solver for Rectangular-Shaped Shorting Pin-Loaded Antennas
    (Wiley, 2013) Can, Sultan; Kapusuz, Kamil Yavuz; Aydin, Elif; Department of Electrical & Electronics Engineering
    This study presents an artificial neural network (ANN) estimation of the operating frequencies of shorting pin-loaded rectangular microstrip patch antennas. A feed forward back propagation multilayer perceptron neural network structure is applied in the study. The results are compared with the ones in the literature and the FEM based simulation results. The results of the operating frequencies obtained by using this method are in very good agreement with the experimental results presented in the literature. Several antennas are also simulated by a finite element method based solver and these results are also compared with the results of the proposed neural network model. The average error of the lower frequency obtained by this study has a decrement of 2.025% when compared to the FEM based simulation software and for the upper frequency this difference is 6.835%. The effects of permittivity of the antenna, size of the dimensions of the rectangular patch, and the shorting pin position are also evaluated. In the light of the ANN model and the relations obtained two antennas in the same shape are produced and the results of these antennas are presented as well. (c) 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:3025-3028, 2013
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    Article
    Citation - WoS: 9
    Citation - Scopus: 9
    Operating Frequency Calculation of a Shorting Pin-Loaded Etma
    (Wiley-blackwell, 2012) Aydin, Elif; Can, Sultan; Department of Electrical & Electronics Engineering
    This article presents the calculation of upper and lower operating frequencies with the expressions of effective side length, effective permittivity, and correction factor to develop accurate lower and upper operating frequencies of a single feed, a shorting pin-loaded equilateral triangular patch, that is, analyzed through a cavity model. To insert permittivity and shorting pin position effects correction factor expressions are determined empirically for both upper and lower frequencies. The various positions of the shorting pin, substrate thickness and side length properties are considered by calculating both upper and lower frequencies. The results from this study are compared with research in the literature comprising results from both experimental and transmission line models. (C) 2012 Wiley Periodicals, Inc. Microwave Opt Technol Lett 54:14321435, 2012; View this article online at wileyonlinelibrary.com. DOI 10.1002/mop.26838
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    Conference Object
    Citation - Scopus: 14
    An indoor navigation aid designed for visually impaired people
    (IEEE Computer Society, 2008) Öktem,R.; Aydin,E.; Çaǧiltay,N.E.; Department of Electrical & Electronics Engineering
    This work introduces the hardware architecture and general principles of a portable indoor navigation system for guiding visually impaired people. It operates through wireless communication between a compact hardware interface unit carried by the user, a central processing unit and an active RFID unit. The RFID unit collects signals as regard to the position of the user, the central system processes those signals to estimate the position of the user and proposes a route and direction for the user to follow, whereas hardware interface unit provides interaction. The orienteering of the user is obtained by a tactile compass. © 2008 IEEE.