New direct method to solve nonlinear Volterra-Fredholm integral and integro-differential equations using operational matrix with block-pulse functions

E Babolian, Z Masouri, S Hatamzadeh - Progress In Electromagnetics …, 2008 - jpier.org
A new and effective direct method to determine the numerical solution of specific nonlinear
Volterra-Fredholm integral and integro-differential equations is proposed. The method is …

Secure localization in sensor networks using transmission range variation

F Anjum, S Pandey, P Agrawal - IEEE International Conference …, 2005 - ieeexplore.ieee.org
In a wireless sensor network, sensors can be randomly distributed in order to collect data
from a site. In many cases the location of the wireless sensor nodes is required in order to …

Broadband and high gain multilayer multiresonator elliptical microstrip antenna

R Chopra, G Kumar - IET Microwaves, Antennas & Propagation, 2020 - Wiley Online Library
In this study, a low cost, broadband and high gain multilayer multiresonator microstrip
antenna (MSA) is designed. It consists of one metallic fed patch at the bottom layer and two …

Support vector characterisation of the microstrip antennas based on measurements

NT Tokan, F Gunes - Progress In Electromagnetics Research B, 2008 - jpier.org
Abstract In this work, Support Vector Machine (SVM) formulation is worked out based
upon''L''measured data for the resonant frequency, operation bandwidth, input impedance of …

A novel design of gap-coupled sectoral patch antenna

A Kandwal, SK Khah - IEEE Antennas and Wireless …, 2013 - ieeexplore.ieee.org
Using gap coupling between the elements, an antenna of four sectors by cutting the slots
through and through from a circular patch is designed for application in X-band. The …

Gap-coupling: A potential method for enhancing the bandwidth of microstrip antennas

P Kumar, G Singh - 2012 - ir.juit.ac.in
In this paper, a technical review on gap-coupled microstrip antennas is presented. The gap-
coupled microstrip antennas give a large bandwidth as compared to the conventional …

He's energy balance method to evaluate the effect of amplitude on the natural frequency in nonlinear vibration systems

H Babazadeh, D Ganji, M Akbarzade - Progress In Electromagnetics …, 2008 - jpier.org
This paper presents a new approach for solving accurate approximate analytical solution for
strong nonlinear oscillators. The new algorithm offers a promising approach by Hamiltonian …

Gap-coupled microstrip antennas

P Kumar, G Singh, S Bhooshan… - Proceedings of the …, 2007 - dl.acm.org
Gap - Coupled Microstrip Antennas | Proceedings of the International Conference on
Computational Intelligence and Multimedia Applications (ICCIMA 2007) - Volume 04 skip to …

[PDF][PDF] Microstrip patch antenna's limitation and some remedies

S Bhunia - International Journal of Electronics & Communication …, 2013 - researchgate.net
Microstrip Patch Antennas (MPA) have several well-known advantages over other antenna
structures, including their low profile and hence conformal nature, light weight, low cost of …

Computation of resonant frequency of gap-coupled ring microstrip antennas

P Kumar - International Journal of Automation and Computing, 2014 - Springer
In this paper, an analytical model for computing the resonant frequency of the gap-coupled
ring microstrip patch antennas is developed. The analytical model is based upon the cavity …