Planar magic tee and Vivaldi antenna system on a single substrate for simultaneous sum and difference patterns

Örs, Berna


Planar perovskite solar cells with metal oxide transport layers by co-evaporation and hybrid vapor-solution sequential method
Soltanpoor, Wiri; Yerci, Selçuk; Department of Micro and Nanotechnology (2020)
The recent success in achieving beyond 25% efficiency with perovskite solar cells (PSC) has called for further upgrading the fabrication techniques to meet the scalability requirements of the photovoltaic (PV) industry. Co-evaporation and a hybrid vapor-solution technique have been shown to produce uniform and efficient planar PSCs. Therefore, in this study, co-evaporation method was optimized studying the partial pressure of the organic precursor. Later electron transport layers in n-i-p and p-i-n structur...
Planar spiral inductor modeling for RFIC design
Telli, A; Demir, Şimşek; Askar, MA (2003-01-01)
The rising demand for low cost RF integrated circuits (RF-IC's) has resulted in tremendous interest in on-chip inductors. As a result of developing processing technology and the considerable studies on modeling and design, reasonable quality on-chip inductors have become available. Planar solenoidal inductors, bondwires and planar spiral inductors are three types of practical on-chip inductors of today's IC design technology. In this study, lumped element planar spiral inductor models have been compared wit...
Planar 3d scene representations for depth compression
Özkalaycı, Burak Oğuz; Alatan, Abdullah Aydın; Department of Electrical and Electronics Engineering (2014)
The recent invasion of stereoscopic 3D television technologies is expected to be followed by autostereoscopic and holographic technologies. Glasses-free multiple stereoscopic pair displaying capabilities of these technologies will advance the 3D experience. The prospective 3D format to create the multiple views for such displays is Multiview Video plus Depth (MVD) format based on the Depth Image Based Rendering (DIBR) techniques. The depth modality of the MVD format is an active research area whose main obj...
Planar seismic source characterization models developed for probabilistic seismic hazard assessment of Istanbul
Gülerce, Zeynep; Guner, Baris; Kaymakcı, Nuretdin (Copernicus GmbH, 2017-12-22)
This contribution provides an updated planar seismic source characterization (SSC) model to be used in the probabilistic seismic hazard assessment (PSHA) for Istanbul. It defines planar rupture systems for the four main segments of the North Anatolian fault zone (NAFZ) that are critical for the PSHA of Istanbul: segments covering the rupture zones of the 1999 Kocaeli and Duzce earthquakes, central Marmara, and Ganos/Saros segments. In each rupture system, the source geometry is defined in terms of fault len...
Planar array structures for two-dimensional direction-of-arrival estimation
Filik, Tansu; Tuncer, Temel Engin; Department of Electrical and Electronics Engineering (2010)
In this thesis, two-dimensional (2-D) direction-of-arrival (DOA) estimation problem is considered. Usually, DOA estimation is considered in one dimension assuming a fixed elevation angle. While this assumption simplifies the problem, both the azimuth and elevation angles, namely, the 2-D DOA estimates are required in practical scenarios. In this thesis, planar array structures are considered for 2-D DOA estimation. In this context, V-shaped arrays are discussed and some of the important features of these ar...
Citation Formats
B. Örs, “Planar magic tee and Vivaldi antenna system on a single substrate for simultaneous sum and difference patterns,” M.S. - Master of Science, Middle East Technical University, 2003.