Wide-band planar inverted-F antenna for cognitive radio [PDF]
, 2009 A wide-band Planar Inverted-F Antenna (PIFA) is presented. The proposed antenna is simply structured consist of main patch supported by shorting wall and shorting pin, fed by 50 ohm microstrip transmission line. The antenna achieves an enhanced impedance
AbuTarboush, HF +3 more
core
Comprehensive design and propagation study of a compact dual band antenna for healthcare applications [PDF]
, 2015 In this paper, a dual band planar inverted F antenna (PIFA) has been investigated for cooperative on- and off-body communications. Free space and on-body performance parameters like return loss, bandwidth, radiation pattern and efficiency of this antenna
Abbasi, Qammer H. +2 more
core +2 more sources
Three‐dimensional Antimony Sulfide Based Flat Optics
Advanced Functional Materials, EarlyView.This work presents the development of a grayscale electron beam lithography (g‐EBL) method for fabricating antimony trisulfide (Sb2S3) nanostructures with customizable 3D profiles. The refractive index of g‐EBL patterned Sb2S3 is determined based on the synergy of genetic algorithm and transfer matrix method.
Wei Wang +18 more
wiley +1 more source
Frequency-Tunable and Pattern Diversity Antennas for Cognitive Radio Applications
International Journal of Antennas and Propagation, 2014 Frequency-tunable microstrip antennas, for cognitive radio applications, are proposed herein. The approach is based on tuning the operating frequency of a bandpass filter that is incorporated into a wideband antenna.
A. H. Ramadan +4 more
doaj +1 more source
Joint Control of Radiated and Surface Waves via Space‐Time Coding Metasurfaces
Advanced Functional Materials, EarlyView.A unified space‐time coding metasurface platform enables simultaneous control of radiated and surface‐confined waves across multiple harmonics. Demonstrated functionalities include multi‐frequency beam shaping; surface‐wave excitation, and hybrid multiplexing.
Zihao Dai +6 more
wiley +1 more source
Wideband Circularly Polarized Cross-Dipole Antenna With Parasitic Elements
IEEE Access, 2019 A wideband circularly polarized (CP) cross-dipole antenna with parasitic elements is proposed. The proposed antenna consists of a pair of driven crossed strip dipoles, two kinds of parasitic elements (inner and outer parasitic elements), and a pair of ...
Lei Wang +5 more
doaj +1 more source
Multifunctional twelve port frequency agile diversity antenna for indoor wireless applications
Scientific Reports, 2023 The recent resurgence of new-generation reconfigurable technologies delivers a plethora of various applications in all public, private and enterprise solutions over the globe.
Deepa Thangarasu +5 more
doaj +1 more source
Miniature transparent UWB antenna with tunable notch for green wireless applications [PDF]
, 2011 Copyright @ 2011 IEEEA miniature transparent UWB antenna with tunable notch that can be incorporated with a solar panel for harnessing solar energy has been proposed and presented.
AbuTarboush, HF +5 more
core +1 more source
Spectrally Tunable 2D Material‐Based Infrared Photodetectors for Intelligent Optoelectronics
Advanced Functional Materials, EarlyView.Intelligent optoelectronics through spectral engineering of 2D material‐based infrared photodetectors. Abstract The evolution of intelligent optoelectronic systems is driven by artificial intelligence (AI). However, their practical realization hinges on the ability to dynamically capture and process optical signals across a broad infrared (IR) spectrum.
Junheon Ha +18 more
wiley +1 more source
Design of a Planar Eleven Antenna for Optimal MIMO Performance as a Wideband Micro Base-station Antenna [PDF]
, 2018 A new low-profile planar Eleven antenna is designed for optimal MIMO performance as a wideband MIMO antenna for micro base-stations in future wireless communication systems. The design objective has been to optimize both the reflection coefficient at the
Glazunov, Andrés Alayón +3 more
core +1 more source