Results 81 to 90 of about 1,969 (224)

Retrieval of rice biophysical parameters from Sentinel‑2 using parsimonious multi‑output machine learning

open access: yesAgrosystems, Geosciences &Environment, Volume 9, Issue 2, June 2026.
Abstract Rice (Oryza sativa L.) crop monitoring in Africa requires efficient retrieval of biophysical parameters such as leaf area index (LAI) and leaf chlorophyll content (LCC), which are essential for crop stress detection and nutrient management.
Joseph Kagotho Muriithi   +5 more
wiley   +1 more source

Compatible Stealth for Infrared and Radar Bands: Mechanisms, Materials, and Design Strategies

open access: yesSmall Science, Volume 6, Issue 6, June 2026.
Developing infrared/radar compatible stealth materials poses significant challenges due to the conflicts in their internal mechanisms. This review provides a detailed account of the design principles, methods, and latest research advances in infrared/radar compatible stealth materials.
Junfeng Fu   +4 more
wiley   +1 more source

Design of machine learning optimized THz MIMO antenna for next-generation wireless communication systems

open access: yesAin Shams Engineering Journal
To meet the growing demand for high data rates in densely populated mobile networks, the development of compact and efficient antenna designs is necessary for the implementation of 5G and 6G technologies. The use of MIMO antenna technology shows promises
Shobhit K. Patel   +2 more
doaj   +1 more source

Planar Inverted-F Antennas (PIFA) for multiband wireless applications

open access: yes, 2010
This is a post-print version of the article - Copyright @ 2010 IEEEA compact reconfigurable four bands Planar Inverted-F Antenna (PIFA) is presented for Digital Video Broadcasting – Handheld (DVB-H), Universal Mobile Telecommunications System (UMTS ...
AbuTarboush, HF, Nilavalan, R, Peter, T
core  

Rapid Beam Forming in Smart Antennas Using Smart-Fractal Concepts Employing Combinational Approach Algorithms

open access: yesInternational Journal of Antennas and Propagation, 2012
Smart antennas offer a broad range of ways to improve wireless system performance. They provide enhanced coverage through range extension, hole filling, and better building penetration.
Mounissamy Levy   +3 more
doaj   +1 more source

Dual-band pin-patch antenna for wi-fi applications [PDF]

open access: yes, 2008
The pin-patch antenna provides a low-profile monopolar element suitable for wireless access point requirements. This design concept is extended here to provide dual-band operation.
Callaghan, Peter, Batchelor, John C.
core   +1 more source

Generalized Sierpinski fractal multiband antennas

open access: yes, 2001
A new set of fractal multiband antennas called mod-p Sierpinski gaskets is presented. Mod-p Sierpinski fractal antennas derive from the Pascal triangle and present a log-periodic behavior, which is a consequence of their self-similarity properties. Mod-p
Soler, Jordi, Romeu Robert, Jordi
core   +1 more source

A reconfigurable H-shape antenna for wireless applications

open access: yes, 2010
The official published version of this article can be obtained from the link below - Copyright @ EuCAP2010This paper presents a novel H-Shaped reconfigurable microstrip patch antenna fed by a Grounded Coplanar Waveguide (GCPW) for wireless applications.
AbuTarboush, HF   +14 more
core  

Multiband Microstrip Antennas for Energy Harvesting Systems

open access: yes, 2022
In this paper, the development of two microstrip antennas for electromagnetic energy harvesting systems is presented. The first one, is the Hybrid Resonator Planar Structure Antenna operating at a specific 900 MHz frequency, while the other is an ...
Cumbajín, Myriam   +3 more
core   +1 more source

A reconfigurable CPW antenna for GPS, GSM and WLAN applications

open access: yes, 2010
Copyright @ 2011 IEEEMultiband reconfigurable antennas are receiving increasing importance in modern wireless communication systems supporting multiservice applications.
AbuTarboush, HF   +4 more
core  

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