Results 11 to 20 of about 1,659 (296)

A Compact Second-order Chebyshev Bandpass Filter Using U-shaped Resonator and Defected Ground Structure [PDF]

open access: yesRadioengineering, 2020
A compact bandpass filter using U-shaped resonators and Defected Ground Structures is proposed and designed at 5.8 GHz. The U-shaped resonators are placed around an indirectly coupled feed line while the Defected Ground Structures are positioned beneath
N. O. Ali   +4 more
doaj   +3 more sources

Harmonic Suppressed Slot Antennas Using Rectangular/Circular Defected Ground Structures [PDF]

open access: yesInternational Journal of Antennas and Propagation, 2012
Two wide rectangle-shaped microstrip-fed 2.6-GHz slot antennas using defected ground structures (DGSs) with a low design complexity are proposed to achieve wideband harmonic suppression.
Mohammad Saeid Ghaffarian   +2 more
doaj   +2 more sources

Comparison of Planar Fractal Filters on Defected Ground Substrate

open access: yesRadioengineering, 2012
The paper discusses approaches to the reduction of dimensions of planar filters (microstrip ones and coplanar ones). Filter dimensions are reduced by applying the fractal theory to the geometry of a filter, and by the defecting of the ground plane of a ...
M. Kufa, Z. Raida
doaj   +1 more source

The MIMO Antenna Array with Mutual Coupling Reduction and Cross-polarization Suppression by Defected Ground Structures [PDF]

open access: yesRadioengineering, 2018
This paper proposes two types of defected ground structures (DGSs) for achieving the mutual coupling (MC) reduction and the antenna cross-polarization (XP) suppression respectively in a MIMO (multiple input multiple output) wireless communication system.
Z. L. Zhang   +4 more
doaj   +2 more sources

A New Design for Compact Size Wireless Power Transfer Applications Using Spiral Defected Ground Structures [PDF]

open access: yesRadioengineering, 2018
In this article, a new wireless power transfer (WPT) design is proposed for improving the efficient of system. The suggested system contains two spiral defected ground structure (DGS) resonators coupled back-to-back.
R. Hussein   +3 more
doaj   +1 more source

A Compact Hairpin Filter with Stepped Hairpin Defected Ground Structure [PDF]

open access: yes2018 IEEE 21st International Multi-Topic Conference (INMIC), 2018
A compact hairpin line bandpass filter is presented with two different defected ground structures (DGS). The DGS are used to reduce the distributive response of the microstrip filter. The harmonic at 2 fo is suppressed to below −20 dB. The filter has an insertion loss (IL) greater than −3 dB and return loss (RL) of 26 dB at the center frequency, 2.4 ...
Sajjad, Hassan   +3 more
openaire   +3 more sources

Novel UWB Microstrip Antenna Structures with Defected Ground Structure

open access: yesIndonesian Journal of Electrical Engineering and Computer Science, 2018
<p>This paper presents the design of new compact printed antennas for Ultra Wide Band applications, fed with a microstrip-line. The proposed designs consist of a patch antenna with defected ground, which are fed by 50Ω microstrip transmission line. The frequency range is 3.1-10.6 GHz which is the Federal Communication Commission (FCC) band of UWB.
S. Elajoumi   +5 more
openaire   +4 more sources

Continuous Rapid⁃Beam⁃Scanning and Circular⁃Polarized Leaky⁃Wave Antenna Based on Meandering⁃SIW with Defected Ground Structures [PDF]

open access: yesTransactions of Nanjing University of Aeronautics and Astronautics
A compact high-scanning-rate circular-polarized leaky-wave antenna (LWA) based on a meandering substrate integrated waveguide (SIW) with defected ground structures (DGSs) is presented.
RUAN Yizheng   +4 more
doaj   +2 more sources

Electronic and magnetic performance of MoS2 monolayer via Tc & Nb impurities defect and water adsorption

open access: yesBibechana, 2023
This study examined the effect of Tc & Nb impurity atoms on MoS2 (Tc-MoS2 & Nb-MoS2 ), and adsorption of water molecule on impurities defected MoS2 (Tc-W-MoS2 & Nb-W-MoS2) material from first-principles calculations.
Hari Neupane   +3 more
doaj   +3 more sources

MINIATURIZED MICROSTRIP PATCH ANTENNA WITH DEFECTED GROUND STRUCTURE [PDF]

open access: yesProgress In Electromagnetics Research C, 2014
The aim of this work is to miniaturize a microstrip patch antenna resonating at 3 GHz. For this purpose, defected ground structure (DGS) has been employed to shift the resonance frequency of an initial microstrip antenna from 5.7 GHz to 3 GHz by disturbing the antenna's current distribution.
Elftouh, Hanae   +5 more
openaire   +2 more sources

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