Results 71 to 80 of about 5,496,642 (229)

Quad-Directional Vivaldi Antenna With Sub-Band Gain Enhancement Based on SSPP

open access: yesIEEE Open Journal of Antennas and Propagation
This paper presents a wideband, high-gain four-directional Vivaldi antenna that employs a novel band-divided optimization strategy. The approach partitions the 2.5–4.5 GHz band into four sub-bands, each assigned to a dedicated radiation direction ...
Shuangshuang Zhu   +4 more
doaj   +1 more source

An FSS Based Multiband MIMO System Incorporating 3D Antennas for WLAN/WiMAX/5G Cellular and 5G Wi-Fi Applications

open access: yesIEEE Access, 2019
A compact 3-dimensional dual-element, multiband antenna for Multi-Input-Multi-Output (MIMO) applications is proposed in this paper. Folding technique along with various impedance matching structures are employed for miniaturization and multiband ...
Rashid Saleem   +5 more
doaj   +1 more source

AN OVERVIEW ON DEFECTED GROUND STRUCTURE [PDF]

open access: yesProgress In Electromagnetics Research B, 2008
Li Hong Weng   +3 more
openaire   +1 more source

Filter Designs With Microstrip Defected Ground Structures

open access: yes, 2014
Tez (Yüksek Lisans) -- İstanbul Teknik Üniversitesi, Fen Bilimleri Enstitüsü, 2014Thesis (M.Sc.) -- İstanbul Technical University, Institute of Science and Technology, 2014Bu çalışmada filtre tasarımında önemli olan argümanlar ışığında, taban iletkeni ...
Ertay, Agâh Oktay
core  

Concentric Ring-Shaped Defected Ground Structures for Microstrip Applications

open access: yes, 2006
A new defected ground structure (DGS) consisting of concentric circular rings in different configurations is experimentally studied to examine the stopband characteristics.
Biswas, S.   +4 more
core   +1 more source

A newly proposed multi-band rectangular patch antenna using defected ground structures

open access: yes, 2017
A new microstrip patch antenna that resonates on more than one frequencies and yields sufficiently high bandwidth is presented. Several variations of the proposed design are simulated using practically used dielectric materials.
Tomar R., Agarwal S.
core   +1 more source

Microstrip Antenna Design With Defected Ground Structure

open access: yesIOSR Journal of Electronics and Communication Engineering, 2014
This paper presents the bandwidth enhancement of co-axial fed truncated microstrip antenna using dumbbell shaped defected ground structure (DGS). The proposed antenna resonating at 5.4 GHz finds application in wireless local area networks in wireless communication systems.
Naheed Anjum Khan, Bharati A.Singh
openaire   +1 more source

Compact LPF using Spiral and Fractal Shaped Defected Ground Structures with Wide Stop Band

open access: yes, 2020
In this paper, two pairs of dumb-bell shaped and spiral shaped resonators as defected ground structure positioned along a widened microstrip line are used to realize a high selective low pass filter with upper cut-off frequency at 3.80 GHz.
Anindya Das   +4 more
core  

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

Defected ground planar filters

open access: yes, 2009
In the bachelor´s thesis, the microstrip low-pass filter with the defected ground is described. The project deals with the design and the simulation of the filter in Ansoft Designer, confrontation of results between simulation and realized low-pass ...
Tomíček, Martin
core   +1 more source

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