Results 41 to 50 of about 7,981,538 (380)

Investigation of the dependences of the Vivaldi antenna with two curve radii in the electrodynamic modeling software package

Вестник Дагестанского государственного технического университета: Технические науки, 2022
Objective. The aim of the study is to build and optimize a computer model of the antenna using software packages for electrodynamic modeling.Method. The study is based on dynamic modeling methods.Result. In this paper, the dependences of the width of the
S. A. Ibragimov
doaj   +1 more source

Ant colony optimisation-based radiation pattern manipulation algorithm for electronically steerable array radiator antennas [PDF]

, 2009
A new algorithm for manipulating the radiation pattern of Electronically Steerable Array Radiator Antennas is proposed. A continuous implementation of the Ant Colony Optimisation (ACO) technique calculates the optimal impedance values of reactances ...
Aelterman, Jan, Declercq, Frederick, Goossens, Roald, Rogier, Hendrik   +3 more
core   +1 more source

Constraining directional modulation transmitter radiation patterns [PDF]

IET Microwaves, Antennas & Propagation, 2014
An iterative pattern synthesis approach for directional modulation (DM) transmitters is presented in this study. Unlike all previous work, this study offers the first discussion on constraining DM transmitter far‐field radiation patterns so that energy is primarily concentrated in the spatial direction where low bit error rate is to be achieved, while ...
Ding, Yuan, Fusco, Vincent F.
openaire   +3 more sources

Radiation pattern of a classical dipole in a photonic crystal: photon focusing

, 2003
The asymptotic analysis of the radiation pattern of a classical dipole in a photonic crystal possessing an incomplete photonic bandgap is presented. The far-field radiation pattern demonstrates a strong modification with respect to the dipole radiation ...
A. A. Maradudin, A. Taflove, B. Temelkuran, D. M. Sullivan, D. N. Chigrin, Dmitry N. Chigrin, E. M. Purcell, J. D. Jackson, J. D. Joannopoulos, J. P. Wolfe, K. Sakoda, K. Sakoda, P. Yeh, S. G. Johnson, V. P. Bykov   +14 more
core   +1 more source

Lifestyle Behaviors and Cardiotoxic Treatment Risks in Adult Childhood Cancer Survivors

Pediatric Blood &Cancer, EarlyView.
ABSTRACT Background Higher doses of anthracyclines and heart‐relevant radiotherapy increase cardiovascular disease (CVD) risk. This study assessed CVD and CVD risk factors among adult childhood cancer survivors (CCSs) across cardiotoxic treatment risk groups and examined associations between lifestyle behaviors and treatment risks.
Ruijie Li, Raquel Revuelta Iniesta, Alan R. Barker, Dimitris Vlachopoulos, Tomáš Sláma, Christina Schindera, Fabiën N. Belle   +6 more
wiley   +1 more source

Analysis and design of L-strip proximity coupled circular microstrip antenna

Journal of Microwaves, Optoelectronics and Electromagnetic Applications
An L-strip proximity coupled circular microstrip antenna is proposed. The structure is investigated using circuit theoretic approach and simulated using IE3D simulation software.
Ganga Prasad Pandey, Binod Kumar Kanaujia, Surendra. K. Gupta, A. K. Gautam   +3 more
doaj   +1 more source

Antenna Radiation Pattern Influence on the Localization Accuracy in Wireless Sensor Networks

Advances in Electrical and Computer Engineering, 2013
Localization or position determination is one of the most common applications for the wireless sensor networks. Many investigations have been made during the last decade, most of the effort being concentrated in the direction of improving the accuracy ...
COCA, E., POPA, V.
doaj   +1 more source

Taguchi-RBF Neural networks Based Optimization of Phased Array Antenna With Coupling Effects

Advanced Electromagnetics, 2023
In the antenna array synthesis problems, most of the works in literature utilize isotropic elements. Thus, the mutual coupling effects between the array elements are neglected.
K. Oureghi, R. Ghayoula, W. Amara, A. Smida, I. El Gmati, J. Fattahi   +5 more
doaj   +1 more source

Optical Nanoantennas with Tunable Radiation Patterns [PDF]

Nano Letters, 2013
We address new optical nanoantenna systems with tunable highly directional radiation patterns. The antenna comprises a regular linear array of metal nanoparticles in the proximity of an interface with high dielectric contrast. We show that the radiation pattern of the system can be controlled by changing parameters of the excitation, such as the ...
Munarriz, J., Malyshev, A. V., Malyshev, V. A., Knoester, J.   +3 more
openaire   +3 more sources

Cerebrospinal Fluid Liquid Biopsy Enables Targeted Therapy Without Tissue Diagnosis in Pediatric Low‐Grade Gliomas With BRAF V600E Mutation

Pediatric Blood &Cancer, EarlyView.
ABSTRACT We present two pediatric cases of pediatric low‐grade gliomas (PLGG) with BRAF V600E mutations diagnosed and monitored using cerebrospinal fluid (CSF) liquid biopsy analyzed via digital droplet PCR (ddPCR), without tissue biopsy. Both patients were treated with dabrafenib and trametinib and monitored through clinical assessments, magnetic ...
Hannah Sultan, Damien Faury, Alexander G. Weil, Harrison J. Westwick, Nada Jabado, Sébastien Perreault   +5 more
wiley   +1 more source