Results 71 to 80 of about 506,346 (193)

Rotman Lens Design and Simulation in ISM’s Band

, 2014
Master of Science in Electrical and Electronic Engineering. Thesis (M.S.)--Eastern Mediterranean University, Faculty of Engineering, Dept. of Electrical and Electronic Engineering, 2014. Supervisor: Assist. Prof. Dr.
Al-obaidi, Mohammed Khalid Ibraheem
core  

Design and Validation of a Rotatable Gap-Waveguide Rotman Lens BFN for a Cylindrically Conformal Slot Array

IEEE Access
This paper presents the design and experimental validation of a two-dimensional (2-D) circularly cylindrical phased array antenna with integrated wide-angle beam-switching capability for multibeam radiation in the Ku-band.
Hsi-Tseng Chou, Da-Wei Li, Supakit Kawdungta, Danai Torrungrueng   +3 more
doaj   +1 more source

Design of wideband Rotman lens for wireless applications

TELKOMNIKA (Telecommunication Computing Electronics and Control), 2019
An electrically steerable beam is an essential standard in the recent wireless application in order to increase the gain and reduce the interference. However, high performance of amplitude besides low phase error difficult to achieve without indicators are used to set lens parameters to desired optimum performance design level.
Mohammed K. Al-Obaidi, Ezri Mohd, Noorsaliza Abdullah, Samsul Haimi Dahlan   +3 more
openaire   +2 more sources

Wideband Direction of Arrival Estimation using Monopulse in Rotman Lens Beamspace

, 2022
S.115-119In this paper, an efficient and responsive amplitude-based wideband Direction of Arrival (DoA) estimation approach using a multiple beam antenna setup is presented.
Worms, Josef, Bringmann, Oliver, Kohler, Michael, O'Hagan, Daniel W., Saam, Alexander   +4 more
core   +1 more source

SIW Multilayer Rotman Lens Antenna in the 24-GHz band

, 2015
International audienceA multi-beam antenna system fed by a dual-layer Rotman lens is presented in multi-layer SIW (substrate integrated waveguide) technology.
Ronan Sauleau, Mauro Ettorre, Ettorre, Mauro, Sauleau, Ronan, Karim Tekkouk, Tekkouk, Karim   +5 more
core   +1 more source

An international survey of daily disposable contact lens prescribing

, 2013
Free to read\ud \ud Purpose\ud \ud The aim was to determine the extent of daily disposable contact lens prescribing worldwide and to characterise the associated demographics and fitting patterns.\ud \ud Methods\ud \ud Up to 1,000 survey forms were sent ...
Morgan, Philip B., Efron, Nathan, Woods, Craig A., The International Contact Lens Prescribing Survey Consortium,   +3 more
core   +1 more source

Phase Shifters Design for Scan Range Extension of Rotman Lens Beamforming Based Antenna Arrays [PDF]

, 2018
The design of the phase management unit needed for extending the scan range of a 24 GHz array antenna system based on Rotman lens beamforming is presented.
Enrico Tolin, Oliver Litschke, Simona Bruni, Francesca Vipiana   +3 more
core   +1 more source

Planar millimeter wave radar frontend for automotive applications [PDF]

Advances in Radio Science, 2003
A fully integrated planar sensor for 77 GHz automotive applications is presented. The frontend consists of a transceiver multichip module and an electronically steerable microstrip patch array.
J. Grubert, J. Heyen, C. Metz, L. C. Stange, A. F. Jacob   +4 more
doaj  

Circular Array Retrodirective Action Using a Rotman Lens Beamformer

, 2019
Data underpinning Chepala, A., Fusco, V., and Abbasi, M. 'Circular Array Retrodirective Action Using a Rotman Lens Beamformer' in Proceeding of 13th European Conference on Antennas and Propagation ...
School of Electronics, Electrical Engineering and Computer Science, Institute of Electronics, Communications & Information Technology, Fusco, Vincent; id_orcid, Chepala, Anil, Abbasi, Muhammad Ali Babar; id_orcid, Wireless Communication Systems   +5 more
core   +1 more source

A Surface Waveguide Supporting Transverse Magnetic Mode and Suppressing Transverse Electric Mode and Its Application in Rotman Lens

IET Microwaves, Antennas & Propagation
This paper addresses the problem of surface wave confinement and the suppression of undesired transverse electric (TE) mode propagation inside the grounded dielectric slab when excited by the transverse magnetic (TM) slot launcher.
Saeed Mahmoodi, Zaker Hossein Firouzeh, Abolghasem Zeidaabadi Nezhad, Halimeh Akhondzadeh Tezerjani   +3 more
doaj   +1 more source