Results 21 to 30 of about 19,740 (298)

Modelling and validation of a simple and compact wide upper stop band ultra-wideband bandpass filter

open access: yesThe Journal of Engineering, 2014
A compact ultra-wideband (UWB) bandpass filter (BPF) is proposed based on end coupled microstrip transmission line, defected ground structure and defected microstrip structure.
Somdotta Roy Choudhury, Santanu Das
doaj   +1 more source

Compact Dual-Band Planar Inverted-e-Shaped Antenna Using Defected Ground Structure

open access: yesInternational Journal of Antennas and Propagation, 2014
This paper presents a novel dual-band planar inverted-e-shaped antenna (PIEA) using defected ground structure (DGS) for Bluetooth and wireless local area network (WLAN) applications.
Wen Piao Lin, Dong-Hua Yang, Zong-De Lin
doaj   +1 more source

Dual-Band MIMO Antenna with Enhanced Isolation for 5G NR Application

open access: yesMicromachines, 2022
A two-port multiple-input and multiple-output (MIMO) antenna with dual-band characteristics operating at the fifth-generation (5G) new radio (NR) sub-6 GHz n7/n38/n41/n79 bands is proposed.
Shuqi Xi   +4 more
doaj   +1 more source

Fe clusters (Fe$_n$, n=1-6) chemisorbed on vacancy defects in graphene: Stability, spin-dipole moment and magnetic anisotropy [PDF]

open access: yes, 2014
In this work, we have studied the chemical and magnetic interactions of Fe$_n$ ; n=1-6 clusters with vacancy defects (monovacancy to correlated vacancies with six missing C atoms) in a graphene sheet by ab-initio density functional calculations combined ...
Bhandary, Sumanta   +6 more
core   +2 more sources

Quasi-Static Analysis of Defected Ground Structure

open access: yesTENCON 2005 - 2005 IEEE Region 10 Conference, 2005
A quasi-static equivalent circuit model of a dumbbell shaped defected ground structure (DGS) is developed. The equivalent circuit model is derived from the equivalent inductance and capacitance developed due to the perturbed returned current path on the ground and the narrow gap, respectively.
Nemai Karmakar   +3 more
openaire   +2 more sources

3.5 GHz Rectangular Patch Microstrip Antenna with Defected Ground Structure for 5G

open access: yesJurnal Elkomika, 2020
ABSTRAK Pada penelitian ini telah dilakukan perancangan dan implementasi antena mikrostrip untuk aplikasi generasi kelima (5G) pada frekuensi 3.5 GHz.
DHATU PARAGYA, HARTONO SISWONO
doaj   +1 more source

Antenna Array Miniaturization using a Defected Ground Structure

open access: yesTrends in Sciences, 2022
A novel Defected Ground Structure (DGS) is proposed to miniaturize a 2×2 Modified Corporate Feed Planar Antenna Array (M-CFPA) with a modified corporate feeding network. The DGS altered the surface current distribution and shifted the resonance frequency to the lower side.
Shashi D. Kumar, Sellakkutti Suganthi
openaire   +1 more source

Formation of defects in multirow Wigner crystals

open access: yes, 2011
We study the structural properties of a quasi-one-dimensional classical Wigner crystal, confined in the transverse direction by a parabolic potential.
A. D. Klironomos   +3 more
core   +1 more source

A Compact Multiband Multimode Antenna Employing Defected Ground Structure [PDF]

open access: yesRadioengineering, 2019
An analysis of shorting pin loaded compact triple-band antenna with triple-mode characteristics is carried out in this paper. The antenna structure is designed with a rectangular patch loaded with open edge slots to excite the fundamental TM10 mode at 2 ...
J. Acharjee   +3 more
doaj  

Reconfigurable phased microstrip antenna array with defected ground structure and defected microstrip structure for beam steering application [PDF]

open access: yes, 2018
Beam steering is defined as the ability to electronically steer the beam maximum of an antenna electric field pattern to some predefined point in space. The performance of a phased antenna array for beam steering without moving the antennas is important ...
Subhi Ahmad, Khalid
core  

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