Browsing Mühendislik Fakültesi by Subject "Telecommunications"

Now showing items 1-11 of 53

A Novel Pinned Cover Design With an Array of Three-Dimensional n-Pole Elements for Low-Frequency Filtering of Microwave Circuit Packages

Nişancı, Muhammet Hilmi (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2018)

In the proposed study, a novel miniaturized cover design including three-dimensional (3-D) n-pole (two-, three-, and four-pole) elements, instead of a conventional pinned cover consisting of an array of pins with circular ...
Achieving Frequency Synchronization by GPS Disciplined Reference Signal

Cagri Bicici; Çerezci, Osman (IEEE, 2016)

A method for achieving frequency synchronization between two distantly positioned high frequency oscillators is presented. The method is based on using GPS disciplined 10 MHz reference sine waves and phase locked dielectric ...
Angle density functions for active sensor imaging

Demirkol, Aşkın; Demir, Zafer; Emre, Erol (INST ENGINEERING TECHNOLOGY-IET, 2009)

A new target density function (TDF) is proposed for active sensor imaging. The TDF, called the angle density function, is studied by utilising the angular distribution of targets at a fixed range. Active sensor imaging ...
DESIGN AND OPTIMIZATION OF A TELECOMMUNICATION SATELLITE POWER SYSTEM

Selman Demirel; Özbey, Şerafettin; Sözbir, Nedim; Senol Gulgonul (ST JOHN PATRICK PUBL, 2015)
DESIGN AND OPTIMIZATION OF A TELECOMMUNICATION SATELLITE POWER SYSTEM

Selman Demirel; Özbey, Şerafettin; Sözbir, Nedim; Senol Gulgonul (ST JOHN PATRICK PUBL, 2015)
Design of Homogeneous and Composite Materials From Shielding Effectiveness Specifications

Francesco De Paulis; Nişancı, Muhammet Hilmi; Antonio Orlandi; Marina Y. Koledintseva; James L. Drewniak (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2014)

A procedure to synthesize a suitable biphasic composite material from the given Shielding effectiveness (SE) specifications is proposed herein. In particular, this paper presents an analytic approach for calculating ...
EBG-Based Common-Mode Microstrip and Stripline Filters: Experimental Investigation of Performances and Crosstalk

Nişancı, Muhammet Hilmi (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2015)

The aim of this study is to analyze from a modeling and experimental point of view the filter effectiveness and the crosstalk among signal traces crossing the same common-mode filter based on electromagnetic bandgap ...
Efficient Analytical Prediction of the EMI Bandgap Limits of PEC-PMC Metallic Enclosures Hosting RF and Digital Circuits

Nişancı, Muhammet Hilmi; Francesco De Paulis; Antonio Orlandi (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2017)

A metal enclosure whose lid is covered by an array of metal pins is studied in this paper. The pins are able to realize a fictitious perfect magnetic conductor surface at the pin end, thus inhibiting cavity resonances and ...
Experimental Validation of a 3D FSS Designed by Periodic Conductive Fibers Part-1: Band-Pass Filter Characteristic

Teşneli, Ahmet Yahya; Teşneli, Nigar Berna; Üstüner, Fatih; Ekrem Demirel; Francesco De Paulis; Antonio Orlandi (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2017)

This study covers the design, manufacturing, and experimental electrical tests for a novel three-dimensional (3-D) band-pass frequency selective surfaces (FSS) containing continuous and discontinuous conductive fibers. The ...
Experimental Validation of a 3D FSS Designed by Periodic Conductive Fibers Part-2: Band-Stop Filter Characteristic

Teşneli, Nigar Berna; Teşneli, Ahmet Yahya; Üstüner, Fatih; Ekrem Demirel; Francesco De Paulis; Antonio Orlandi (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2017)

In this study, an X-band band-stop frequency selective surface (FSS) consisting of aligned finite length periodic conductive cylindrical fibers embedded in a dielectric host material is designed, manufactured, and electrically ...
From Maxwell Garnett to Debye Model for Electromagnetic Simulation of Composite Dielectrics Part I: Random Spherical Inclusions

Francesco De Paulis; Nişancı, Muhammet Hilmi; Marina Y. Koledintseva; James L. Drewniak; Antonio Orlandi (IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC, 2011)

A semianalytical approach to obtain an equivalent Debye frequency dependence of effective permittivity for biphasic materials with random spherical inclusions from the well-known Maxwell Garnett (MG) mixing rule is proposed. ...