Yazar "Çolak, Bektaş" için listeleme
-
Absorbing properties and structural design of PVB/Fe 3 O 4 nanocomposite
Akınay, Yüksel; Hayat, Fatih; Çolak, Bektaş (Elsevier Ltd, 2019)Recently, a wide range of studies has been carried out on microwave absorber composites for use in telecommunications, electromagnetic pollution, stealth technology, and other applications. In this study, the microwave ... -
Development of multifrequency MW detection device to scan liquids in security checkpoints
Yengejeh, M. Vafadar; Mamadazizov, Sultonazar; Çolak, Bektaş; Rameev, Bulat (Ieee, 2019)Development of both technical devices and effective methods for the detection of various dangerous substances is one of the critical task in providing airport and critical infrastructure security. In this work, we propose ... -
Investigation of the characteristics of low-cost and lightweight horn array antennas with novel monolithic waveguide feeding networks
Genç, Abdullah; Başyiğit, İbrahim Bahadır; Çolak, Bektaş; Helhel, Selçuk (Elsevier Gmbh, 2018)3D printed X-Ku band single horn antenna and 2 x 1 and 2 x 2 pyramidal horn array antennas with novel lightweight and monolithic waveguide feeding networks (WFNs) are proposed at 10-15 GHz for satellite communications and ... -
Moisture content effect of banana leaves to radio frequency absorbing
Çolak, Bektaş (Wiley, 2019)The aim of this paper is to express the importance of the moisture content of banana leaves to the evaluation of radio frequency (RF) absorbing performance. Radar absorbing material (RAM) is generally used in electromagnetic ... -
A new error reduction technique for reflection coefficient measurements for use in quick laboratory tests
Çolak, Bektaş; Helhel, Selçuk (Taylor & Francis Ltd, 2019)Reflection coefficient measurement is one of those fundamental methods for determining the performance of radar absorber materials, and reflections due to these measurements are originated from the discontinuities in the ... -
Remote sensing for the detection of explosives and energetic materials by N-14 NQR and N-14 NMR
Mozzhukhin, Georgy; Maraşlı, A.; Mamadazizov, S.; Çolak, Bektaş; Rameev, Bulat (Ieee, 2019)In this work, technical approaches for remote detection of explosives and energetic materials by N-14 NQR and NMR are presented. In the case of N-14 NQR, a problem of the detection of ammonium nitrate (AN) and AN-based ...
