Results 21 to 30 of about 19,827 (295)

Analysis of low mutual coupling compact multi-band microstrip patch antenna and its array using defected ground structure

open access: yesEngineering Science and Technology, an International Journal, 2016
In this paper, a simple microstrip patch antenna and a two-element E-plane coupled microstrip antenna array employing a defected ground structure are investigated. Without defected ground structure, the antenna has an impedance bandwidth of 675 MHz (6.78%
Munish Kumar, Vandana Nath
doaj   +1 more source

Self healing of vacancy defects in single layer graphene and silicene [PDF]

open access: yes, 2013
Self healing mechanisms of vacancy defects in graphene and silicene are studied using first principles calculations. We investigated host adatom adsorption, diffusion, vacancy formation and revealed atomistic mechanisms in the healing of single, double ...
Ciraci, S.   +2 more
core   +2 more sources

Variations of Compact Rectangular Microstrip Antennas Using Defected Ground Plane Structure [PDF]

open access: yesJournal of Microwaves, Optoelectronics and Electromagnetic Applications, 2022
The defects in the form of slots have been employed in microstrip antenna either on the patch or the ground plane to yield frequency reduction. However, the reported work does not provide any comparative study that highlight upon the frequency and cross ...
Poonam A. Kadam, Amit A. Deshmukh
doaj   +1 more source

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  

Novel Two-Dimensional (2-D) Defected Ground Array for Planar Circuits

open access: yesActive and Passive Electronic Components, 2004
This paper presents a novel two-dimensional (2-D) defected ground array (DGA) for planar circuits, which has horizontal and vertical periodicities of defect structure.
Haiwen Liu, Xiaowei Sun, Zhengfan Li
doaj   +1 more source

Antenna for Ultra-Wideband Applications With Non-Uniform Defected Ground Plane and Offset Aperture-Coupled Cylindrical Dielectric Resonators

open access: yesIEEE Access, 2019
A new compact Cylindrical Dielectric Resonator Antenna (CDRA) with a defected ground for ultra-wideband applications is presented. The structure is based on two cylindrical dielectric resonators asymmetrically located with respect to the center of an ...
Chemseddine Zebiri   +10 more
doaj   +1 more source

A Design of a Terahertz Microstrip Bandstop Filter with Defected Ground Structure

open access: yesActive and Passive Electronic Components, 2013
A planar microstrip terahertz (THz) bandstop filter has been proposed with defected ground structure with high insertion loss (S21) in a stopband of −25.8 dB at 1.436 THz.
Arjun Kumar, M. V. Kartikeyan
doaj   +1 more source

Combined DMS and DGS Techniques for Compact and Low Cutoff Frequency LPF Design [PDF]

open access: yesJournal of Engineering Research - Egypt, 2018
high performance and compact size low pass filters with narrow stopband and sharp cutoff characteristics are highly required in numerous wireless communication systems for noise and interference suppression.
Sara Meeper, Amr Hussein, Mahmoud Attia
doaj   +1 more source

Design and Implementation of 2x4 Element Hexagonal Array Microstrip Antenna with DGS Method in the Shape of Dumbbell Circle Head for 2.4 GHz Frequency Wi-Fi Applications

open access: yesJurnal Jaringan Telekomunikasi, 2022
This study discusses the design and manufacture of microstrip antennas that aim to widen the bandwidth in the application of Wi-Fi in the form of a hexagonal patch composed of a 2x4 element array.
Koesmarijanto Koesmarijanto   +2 more
doaj   +1 more source

Novel Wilkinson Power Divider with an Isolation Resistor on a Defected Ground Structure with Improved Isolation

open access: yesApplied Sciences, 2021
A modified Wilkinson Power Divider is proposed in this paper that utilizes defected ground structure (DGS) in parallel with an isolation resistor. The proposed DGS section is incorporated between the output ports, and the isolation resistor is soldered ...
Maaz Salman   +4 more
doaj   +1 more source

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