Department of Electrical and Electronics Engineering

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Ergül, Özgür Salih (255)
Akın, Tayfun (208)
Alatan, Abdullah Aydın (197)
Külah, Haluk (165)
Leblebicioğlu, Mehmet Kemal (129)

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Electrical and Electronic Engineering (350)
Electrical engineering. (252)
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Recent Submissions

Label-free enrichment of MCF7 breast cancer cells from leukocytes using continuous flow dielectrophoresis
Arslan, Zeynep Caglayan; Yalcin, Yagmur Demircan; Külah, Haluk (2022-04-01)
Circulating tumor cells (CTCs) present in the bloodstream are strongly linked to the invasive behavior of cancer; therefore, their detection holds great significance for monitoring disease progression. Currently available ...
A novel surface-integral-equation formulation for efficient and accurate electromagnetic analysis of near-zero-index structures
İbili, Hande; Ozmu, Utku; Karaosmanoglu, Bariscan; Ergül, Özgür Salih (2022-03-01)
We consider accurate and iteratively efficient solutions of electromagnetic problems involving homogenized near-zero-index (NZI) bodies using surface-integral-equation formulations in the frequency domain. NZI structures c...
Signaling Games for Log-Concave Distributions: Number of Bins and Properties of Equilibria
Kazikli, Ertan; Sarıtaş, Serkan; GEZİCİ, Sinan; Linder, Tamas; Yuksel, Serdar (2022-03-01)
We investigate the equilibrium behavior for the decentralized cheap talk problem for real random variables and quadratic cost criteria in which an encoder and a decoder have misaligned objective functions. In prior work, i...
A novel miniaturized X-band coplanar waveguide branch-line coupler using T- and 𝜋�-type equivalent transmission lines
Arican, Galip Orkun; Sen, Ozlem; Sayan, Gönül (2022-03-01)
This article reports a novel compact branch-line coupler (BLC) in coplanar waveguide technology for X-band monolithic microwave integrated circuit (MMIC) applications. This article consists of theoretical basis, design, an...
Coriolis Vibratory MEMS Gyro Drive Axis Control with Proxy-Based Sliding Mode Controller
Ozturk, Derya Unsal; Erkmen, Aydan Müşerref (2022-03-01)
MEMS (micro electrical mechanical systems) gyroscopes are used to measure the angular rate in several applications. The performance of a MEMS gyroscope is dependent on more than one factor, such as mechanical imperfections...
Dual-band InGaAs nBn photodetectors at 2 mu m
Şahin, Alper; Gül, Musa Selim; Uzgur, Fatih; Kocaman, Serdar (2022-02-01)
An nBn type InGaAs photodetector structure operating at 2 mu m with dual-band operation capability has been numerically designed and experimentally characterized. A compositionally graded and unintentionally doped InGaAlAs...
Design, Modeling, and Control Allocation of a Heavy-Lift Aerial Vehicle Consisting of Large Fixed Rotors and Small Tiltrotors
Ozdogan, Gokhan; Leblebicioğlu, Mehmet Kemal (2022-02-01)
In this article, we propose an unconventional heavy-lift aerial vehicle (HLAV), present the design and its control allocation analysis, and prove the concept by the demonstration of the experimental test prototype in the o...
Sensitivity Analysis for the Inductance Gradient of EMFY-3 Electromagnetic Launcher
Tosun, Nail; Civil, Anil; Oruc, Ahmet Yasin; Yildirim, Baran; Ozceylan, Bekir Mert; Bolat, Bora; Yurdakul, Emre Burak; Tan, Evren; Yurdakonar, Ferhat; Akdemir, Huseyin; Gungen, Ibrahim; Onur, Ibrahim; Karagoz, Mustafa; Cavbozar, Ozgur; Demirkol, Rasih Hakan; Gocmen, Ulas; Keysan, Ozan (2022-01-01)
ASELSAN Inc. has been working on electromagnetic launch technologies since 2014. The first prototype, EMFY-1, has a 25 mm x 25 mm square bore and 3-m-length rails. The second prototype, EMFY-2, has a 50 x 50 mm square bore...
2-6 GHZ GALLIUM NITRIDE HEMT MMIC AMPLIFIER DESIGN
Çakmak, Mert; Dural Ünver, Mevlüde Gülbin; Department of Electrical and Electronics Engineering (2022-1)
Wideband RF power amplifiers are critical components in many electronic systems such as communication systems, radars and electronic warfare systems. Chip size, output power, efficiency and reliability are key points of th...
Perturbation-Asymptotic Series Approach for an Electromagnetic Wave Problem in an Epsilon Near Zero (ENZ) Material
Akkaya, Murat Koray; YILMAZ, ASIM EGEMEN; Kuzuoğlu, Mustafa (2022-01-01)
Electromagnetic waves present very interesting features while the permittivity of the environment approaches to zero. This property known as ENZ (Epsilon Near Zero) has been analysed with the perturbation approach-asymptot...
Determining allowable parametric uncertainty in an uncommon quadrotor model for closed loop stability
Baskin, Mehmet; Leblebicioğlu, Mehmet Kemal (2022-01-01)
In this article, control oriented uncertainty modeling of an uncommon quadrotor in hover is discussed. This quadrotor consists of two counter-rotating big rotors on longitudinal axis and two counter-rotating small tilt rot...
A 1-V Nanopower Highly Tunable Biquadratic Gm−C Bandpass Filter for Fully Implantable Cochlear Implants
Özbek, Berkay; Külah, Haluk (2021-12-23)
This paper presents a low power highly tunable second-order Gm−C bandpass filter for auditory signal processing of fully implantable cochlear implants. The resonance frequency of the filter is tunable within the daily acou...
LOW POWER HIGHLY PROGRAMMABLE ANALOG FRONT-END FOR 12-CHANNEL FULLY IMPLANTABLE COCHLEAR IMPLANTS
Özbek, Abdurrahman Berkay; Külah, Haluk; Department of Electrical and Electronics Engineering (2021-12-17)
Cochlear implants are the most common treatment option for individuals with sensorineural hearing loss. However, despite the functional success, the patients have concerns about the aesthetics and practicality of the devic...
DC-link capacitor sizing of three-level neutral point clamped voltage source inverters for variable speed drives
Ogan, Serhat Emir; Bostancı, Emine; Department of Electrical and Electronics Engineering (2021-12-13)
A three-level neutral point clamped (NPC) voltage source inverter (VSI) topology can be advantageous in electric vehicles with a high DC-link voltage and a high switching frequency due to the flexibility in power switch se...
Massive Multiple-Input Multiple-Output Communication Systems with Low-Resolution Quantizers
Üçüncü, Ali Bulut; Yılmaz, Ali Özgür; Department of Electrical and Electronics Engineering (2021-12-2)
Low resolution analog-to-digital converters (ADC) attracted much attention for their use inmassivemultiple-inputmultiple-output (MIMO) systems due to their low power consumption and cost. In this thesis, we question whethe...
Broadband Analysis of Multiscale Electromagnetic Problems: Novel Incomplete-Leaf MLFMA for Potential Integral Equations
Khalichi, Bahram; Ergül, Özgür Salih; Takrimi, Manouchehr; Erturk, Vakur B. (2021-12-01)
Recently introduced incomplete tree structures for the magnetic-field integral equation are modified and used in conjunction with the mixed-form multilevel fast multipole algorithm (MLFMA) to employ a novel broadband incom...
SNR and total acquisition time analysis of multi-echo FLASH pulse sequence for current density imaging
Sadighi, Mehdi; Şişman, Mert; Eyüboğlu, Behçet Murat (2021-12-01)
Magnetic Resonance Current Density Imaging (MRCDI) is an imaging modality providing cross-sectionalcurrent densityðJ Þinformation inside the body. The clinical applicability of MRCDI is highly dependenton the sensitivity o...
A partitioning strategy for improved state estimation performance in ill-conditioned power systems with hybrid measurement set
Yildiz, Tuna; Açılan, Etki; Göl, Murat (2021-12-01)
Considering the increase in power system size and the number of PMUs, the utilization of a computationally efficient yet accurate static state estimator is crucial. The fast-decoupled WLS estimator (FD-WLS) is the most com...
Semi-Automatic Annotation For Visual Object Tracking
Köksal, Aybora; Alatan, Abdullah Aydın (2021-11-24)
We propose a semi-automatic bounding box annotation method for visual object tracking by utilizing temporal information with a tracking-by-detection approach. For detection, we use an off-the-shelf object detector which is...
Centralized Microgrid Control System in Compliance with IEEE 2030.7 Standard Based on an Advanced Field Unit
Pouraltafi-kheljan, Soheil; Ugur, Mesut; Bozulu, Efecan; Caliskan, Bahadir Can; Keysan, Ozan; Göl, Murat (2021-11-01)
The necessity for the utilization of microgrids emerges from the integration of distributed energy resources, electric vehicles, and battery storage systems into the conventional grid structure. In order to achieve a prope...
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