• Properties of metamaterial based electromagnetic absorbers and shields 

  Pekmezci, Ayşegül; Sevgi, Levent (IEEE, 2019)

  Metamaterials are widely investigated as nominates for absorbers and shields in Electromagnetic Compatibility (EMC) techniques. Due to the dispersive nature of artificially constructed metamaterials, permittivity and/or ...

• Design and numerical simulation of a semi-symmetrical groove type resonator at millimeter waves 

  Sevgi, Levent; Aydınlık Bechteler, Ayşe Sevinç (IEEE, 2003)

  A semi-symmetrical groove guide resonator at millimeter waves is investigated both experimentally and numerically. The structure is made of duraluminium and fabricated with a maximum relative tolerance of less than 0.5%. ...

• Validation tests for transmission line matrix method in EMC calculations 

  Özyalçın, M. Orhan; Sevgi, Levent; Topuz, Ercan (IEEE, 2003)

  Transmission line matrix (TLM) method algorithm is validated against exact analytical solutions for a typical EMC problem. The two test problems chosen for this purpose are the determination of fields inside a PEC resonator ...

• Dual input all-pass filter using DVCC 

  Minaei, Shahram; Temizyürek, Çağrı (IEEE, 2003)

  A new first-order dual-input all-pass filter in current-mode operation using the differential voltage current conveyor (DVCC) is proposed. The novelty of the configuration is that the DVCC supplies high input impedances ...

• Homing guidance laws using applied fuzzy systems 

  Deskovski, Stojce; Gacovski, Zoran; Dimirovski, Georgi M. (IEEE, 2003)

  In this paper we present a simulation model of homing-guided anti-aircraft or surface-to air (SA) missiles - SAM, suitable for research, development and testing of different guidance and control laws, obtained from synthesis ...

• PC-tabanlı EKG sinyallerinin algılanması, ayrıştırılması ve analizi 

  Şentürk, Ümit; Yücedağ, İbrahim; Polat, Kemal; Varol, Hüseyin Selçuk (IEEE, 2018)

  Kalp hastalıklarından ölenlerin sayısı günümüzde hızla artmaktadır. Kalp hastalıklarına bağlı ölümlere büyük oranda kalp aritmisi neden olmaktadır. Kalpteki anormallikler ani kalp krizine veya kalbin kalıcı zarar görmesine ...

• A rectifier circuit using add-differentiate IC with a minimal number of CMOS transistors 

  Göknar, İzzet Cem; Minayi, Elham (IEEE, 2018)

  Using the recently developed Add-Differentiate 5-terminal Integrated Circuit, AD-IC (which possess 12 CMOS transistors only), augmented with two diodes, a new rectifier configuration is presented. Transistor level circuit ...

• A generic microstrip structure with broadband bandstop and bandpass filter characteristics 

  Çakır, Gonca; Sevgi, Levent (Springer, 2006)

  Novel, generic double-arm microstrip structures which can be used as both electromagnetic bandstop and bandpass filters are introduced. The design steps, numerical simulations, practical realization, and experimentations ...

• A matlab-based filter design tool using the analogy between wave and circuit theories 

  Çakır, Gonca; Gündüz, Sibel; Sevgi, Levent (Springer, 2006)

  A Matlab-based lumped (LC) and scattered (microstrip line) filter design tool is designed. Based on the analogy between wave and circuit (transmission line) theories a broadband filter prototype is introduced for all types ...

• Fast integral equation solutions: Application to mixed path terrain profiles and comparisons with parabolic equation method 

  Tunç, Celal Alp; Akleman, Funda; Ertürk, Vakur B.; Altıntaş, Ayhan; Sevgi, Levent (Springer, 2006)

  The numerical modeling and simulation of multimixed path surface wave propagation is discussed. Sea land, sea-land-sea transitions are modeled via fast integral equation solutions and the results are compared against the ...

• Design alternatives of spiral antenna arrays for wireless applications 

  Çakır, Gonca; Sevgi, Levent (Springer, 2006)

  Design alternatives of low-cost, small-size, and high-performance spiral antenna arrays for wireless applications are presented. Polarization and radiation characteristics, beam forming, and pattern nulling capabilities ...

• Fractional-order differentiators and integrators with reduced circuit complexity 

  Bertsias, Panagiotis; Safari, Leila; Minaei, Shahram; Elwakil, Ahmed; Psychalinos, Costas (IEEE, 2018)

  Fractional-order differentiation and integration stages are essential building blocks for performing signal processing using fractional-order calculus. One important characteristic of fractional-order differentiators/integrators ...

• Single active device metamutator; Its application to impedance simulation and in particular to FDNR 

  Minayi, Elham; Göknar, İzzet Cem (IEEE, 2017)

  The proposed Metamutator configuration employs only one Fully Differential Current Conveyor (FDCCII) which has 9 terminals including ground. By properly interconnecting these terminals a 4-port Metamutator is obtained ...

• CIM a current inverting metamutator and its application to universal filters among others 

  Minayi, Elham; Göknar, İzzet Cem (IEEE, 2017)

  A new kind of metamutator namely “Current Inverting Metamutator,” its realizations using different types of active blocks and some of its applications are given in this paper. As a classical application of the metamutator ...

• New ECCII-based electronically controllable current-mode instrumentation amplifier with high frequency performance 

  Safari, Leila; Minaei, Shahram (IEEE, 2017)

  In this paper, a new electronically controllable current-mode instrumentation amplifier (CMIA) is presented. The proposed CMIA is based on only two electronically tunable second-generation current conveyors (ECCIIs). It ...

• New ECCII-based electronically controllable current-mode instrumentation amplifier with high frequency performance 

  Safari, Leila; Minaei, Shahram (IEEE, 2017)

  In this paper, a new electronically controllable current-mode instrumentation amplifier (CMIA) is presented. The proposed CMIA is based on only two electronically tunable second-generation current conveyors (ECCIIs). It ...

• Novel grounded capacitor-based resistorless tunable floating/grounded inductance simulator 

  Kartçı, Aslıhan; Herencsar, Norbert; Vrba, Kamil; Minaei, Shahram (IEEE, 2016-10)

  This paper deals with resistorless lossless floating/grounded inductance simulator and its application to third-order voltage-mode elliptic low-pass and band-pass filters providing high linearity and wide bandwidth in high ...

• A simple low voltage, high output impedance resistor based current mirror with extremely low input and output voltage requirements 

  Safari, Leila; Minaei, Shahram (IEEE, 2016)

  A New CMOS resistor based current mirror with extremely low voltage requirement at input (in the range of a few mV) and output voltage requirement of about one Vds is presented. The proposed structure combines the advantages ...

• A quadratic stability solution for switched singular linear systems 

  Yin, Yu-Juan; Zhao, Jun; Dimirovski, Georgi M.; Kolemisevska-Gugulovska, Tatjana D. (IEEE, 2009-08)

  Quadratic stability for a class of switched singular linear systems is investigated. The convex combination technique of standard switched linear systems is extended to switched singular systems and a sufficient condition ...

• MOS only oscillator using adder and subtractor circuits 

  Yıldız, Merih; Göknar, İzzet Cem; Minaei, Shahram (IEEE, 2010-11)

  In this paper an NMOS based sinusoidal oscillator is presented. The circuit is constructed with voltage-mode (VM) NMOS-based analog adder and subtractor circuits which respectively perform V1+V2 and V1-V2 operations on the ...

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