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Impedance Enhancement of Textile Grounded Loop Antenna Using High-Impedance Surface (HIS) for Healthcare Applications [PDF]

open access: yesSensors, 2020
In this paper, impedance matching enhancement of a grounded wearable low-profile loop antenna is investigated using a high-impedance surface (HIS) structure.
Mohammed M. Bait-Suwailam   +2 more
doaj   +4 more sources

A shared-aperture pentaband antenna with high impedance surface for CubeSat application [PDF]

open access: yesScientific Reports
A circular polarized (CP) pentaband antenna based on the aperture-in-aperture (AIA) concept is presented for CubeSat applications. This AIA consists of five different bands ranging from L-band to Ka-band.
Md Nazim Uddin, Elias A. Alwan
doaj   +2 more sources

Investigation of AFGSM Methods for Some Electromagnetic Bandgap Structures: From Analysis to Applied Antenna Design

open access: yesIEEE Access, 2023
Electromagnetic Bandgap (EBG) structures that exhibit various performances, such as preventing the electromagnetic wave propagation and reflecting an incident wave within the stopband, have unique electromagnetic characterization.
Durmus Gebesoglu   +2 more
doaj   +1 more source

Four-Arm Log-Periodic Toothed Antenna With Hybrid Reflector Composed of Inhomogeneous Metamatarial Elements for Electronic Support Measures

open access: yesIEEE Access, 2023
A novel method of enhancing radiation performance is demonstrated by applying a hybrid reflector composed of inhomogeneous metamaterial elements to a four-arm log-periodic toothed antenna.
Donghyun Kim   +3 more
doaj   +1 more source

Ferrite-Loaded Inverted Microstrip Line-Based Artificial Magnetic Conductor for the Magnetic Shielding Applications of a Wireless Power Transfer System

open access: yesApplied Sciences, 2023
In this paper, we propose a ferrite-loaded inverted microstrip line (IML)-based artificial magnetic conductor (AMC) with a novel design that can provide complete magnetic shielding at the backside of the transmitting (Tx) coil while slightly improving ...
Sonapreetha Mohan Radha   +5 more
doaj   +1 more source

Single/Dual/Triple Broadband Metasurface Based Polarisation Converter with High Angular Stability for Terahertz Applications

open access: yesMicromachines, 2022
This paper presents design and characterisation of a new compact metasurface based linear polarisation converter for terahertz applications. The metasurface unit cell with periodicity of 0.292λ0 consists of an asymmetrically oriented planar double ...
Shyam Sundar Pati, Swaroop Sahoo
doaj   +1 more source

Multi-Mode High-Gain Antenna Array Loaded With High Impedance Surface

open access: yesIEEE Access, 2020
A novel and simple broadband antenna array loaded with high impedance surface is proposed in this letter. The unit cell is composed of a main radiating patch and a pair of EBG arrays placed symmetrically at the two radiating edges of the main radiating ...
Ting Wu, Juan Chen, Peng-Fei Wu
doaj   +1 more source

A Novel Beam Steerable Antenna Employing Tunable High Impedance Surface With Liquid Crystal

open access: yesIEEE Access, 2020
A novel beam steerable antenna employing tunable high impedance surface with liquid crystal is proposed. This antenna utilizes three microstrip patches as the radiators and a tunable high impedance surface based on liquid crystal as the ground plane.
Jun Shu, Yueping Zhang, Ziyang Zheng
doaj   +1 more source

Fully Fabric High Impedance Surface-Enabled Antenna for Wearable Medical Applications

open access: yesIEEE Access, 2021
The compact and robust high-impedance surface (HIS) integrated with the antenna is designed to operate at a frequency of 2.45 GHz for wearable applications. They are made of highly flexible fabric material. The overall size is $45\times \,\,45\times 2.4$
Adel Y. I. Ashyap   +6 more
doaj   +1 more source

Effect of Surface Roughness on Corrosion Behavior of GCr15 Bearing Steel in 0.05 mol/L NaCl Solution [PDF]

open access: yesCailiao Baohu, 2021
The surface roughness is one of important factors that influenced the service life and reliability of bearing steel, but the researches on the relationship between the surface roughness and corrosion resistance of bearing steel has been less reported ...
WU Xiang-feng, FANG Ke-wei, LI Cheng-tao, LUO Kun-jie, WU Huan-chun, ZHANG Du-bao
doaj   +1 more source

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