ORCID "0000-0003-1859-5236" Elektrik - Elektronik Mühendisliği Bölümü Yayın Koleksiyonu için listeleme
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3D printed microwave clamp probe design to detect water level in PVC pipes
Kasar, Ömer; Gözel, Mahmut Ahmet; Geçin, MustafaA. (Soc Microelectronics, 2021)The permittivity of water is considerably larger than that of air. As the amount of water in PVC water pipes increases, the air will be replaced by water. This means that the electromagnetic environment properties inside ... -
Analysis of rectifier stage number and load resistance in an RF energy harvesting circuit
Kasar, Ömer; Gözel, Mahmut Ahmet; Kahriman, Mesud (Wiley, 2020)In this study, a single-stage and three-stage Dicksonrectifier circuits that wouldbeabletoperformRFenergy harvesting were proposed. Operating frequencywas selected as 1 GHz. The highest efficiency valuewas obtained at 7 ... -
Application of ultra wideband RF energy harvesting by using multisection Wilkinson power combiner
Kasar, Ömer; Kahriman, Mesud; Gozel, Mahmut Ahmet (Wiley, 2019)In this study, an ultra-wide band (UWB) energy harvesting circuit was proposed using the Greinacher rectifier circuit. The circuit was designed with Wilkinson power combiner (WPC) for use at two different radio frequency ... -
Design and implementation of a 3D printed RF power transceiver clamp to measure the water level in PVC water pipes
Kasar, Ömer; Geçin, Mustafa Vecdi; Gözel, Mahmut Ahmet (John Wiley and Sons Inc, 2021)There is very few ways to detect the amount of water inside polyvinyl chloride (PVC) pipes without physical intervention. In this study, using additive manufacturing technology, it has been tried to determine the filling ... -
Design and implementation of compact four way wilkinson power divider for uhf applications
Kasar, Ömer (Yıldız Teknik Üniversitesi, 2020)In this study, a compact four equal way Wilkinson Power Divider (WPD) circuit design was designed for UHF applications. The circuit whose center frequency was selected as 0.8 GHz operates between the frequencies of ... -
Design of an efficiency-enhanced Greinacher rectifier operating in the GSM 1800 band by using rat-race coupler for RF energy harvesting applications
Gozel, Mahmut Ahmet; Kahriman, Mesud; Kasar, Ömer (Wiley, 2019)Radio frequency energy harvesting (RFEH) circuits can convert the power of communication signals from radio frequencies (RF) in the environment into direct current and voltage (DC power). In this study, the Greinacher ... -
A low profile compact three-way Wilkinson power divider with size reduction
Kasar, Ömer (De Gruyter Open Ltd, 2020)In this study, a three-way Wilkinson power divider (WPD) was proposed the circuit whose center frequency was selected as 1.9 GHz operates between 0.95-2.95 GHz frequencies and has a bandwidth of approximately 105%. The ... -
A new design for unequal way Wilkinson power dividers: Euler method approach
Kasar, Ömer (IEEE, 2020)In this study, a multi-section and unequal power division Wilkinson power divider design has been proposed. Euler impedance matching technique has been applied on the output branches of the power division circuit which ... -
Realization of reconfigurable filtering horn antennas using active frequency selective surfaces for GSM and LTE signal filtering
Kasar, Ömer; Belen, Mehmet Ali (John Wiley and Sons Inc., 2020)Herein, it is aimed to design an Active Frequency Selective Surface (AFSS) based high performance reconfigurable filtering antenna (Filtenna). The proposed AFSS unit element is consist of a single PIN diode with a simple ... -
A theoretical design of ultra-wideband multisection Wilkinson power divider using Euler polynomials
Kasar, Ömer; Kahriman, Mesud (Wiley, 2020)When the broadband impedance matching techniques are applied to the Wilkinson power divider, it operates in a larger frequency range and covers many communication bands. In this study, an ultra-wideband (UWB) multisection ...