Results 61 to 70 of about 535,313 (240)
International Journal of RF and Microwave Computer-Aided Engineering, Volume 2026, Issue 1, 2026.This work presents a compact dual‐band patch antenna designed for skin implant applications. The antenna features a robot‐shaped patch structure on FR‐4 substrate and resonates at dual bands of 915 and 2430 MHz. Three techniques are employed to miniaturize the antenna: a shorting pin between the patch and ground, defected ground structure (DGS), and ...
Emtiaz Ahmed Mainul +2 more
wiley +1 more source
Wideband PIFA antenna for higher LTE band applications [PDF]
, 2015 Este artículo presenta una antena plana F invertida (PIFA) de b anda ancha con la técnica de excitación capacitiva en U para ap licaciones en la banda alta de LTE.
Eva Antonino-Daviú +7 more
core +2 more sources
A Tunable MIMO Antenna With Dual-Port Structure for Mobile Phones
IEEE Access, 2019 In this paper, we develop a new frequency reconfigurable dual-port antenna that has two independent signal feed ports in a single antenna element for multiple-input multiple-output capable mobile handsets.
Won-Woo Lee, Beakcheol Jang
doaj +1 more source
European Journal of Organic Chemistry, Volume 28, Issue 45, December 10, 2025.The parent 5,5′‐binaphtho[2,1‐d]isoxazole and its 3,3′‐dimethyl and 3,3′‐diphenyl derivatives are synthesized via condensation of the respective dicarbonyl compounds with hydroxylamine, followed by cyclodehydration of the resulting dioximes. The dicarbonyl precursors are obtained through 4‐ or 6‐step sequences from 1‐naphthol or 1‐naphthaldehyde ...
Marek Surowiec +6 more
wiley +1 more source
The effect of the ground plane size and the height on small PIFA
, 2010 This is the post-print version of the article - Copyright @ ISAP ...
AbuTarboush, HF +3 more
core +1 more source
Designs of Textile Antenna Arrays for Smart Clothing Applications
AUTEX Research Journal, 2018 In this work, three designs of textile antennas, namely, a rectangular microstrip patch antenna, annular slot antenna, and planar inverted-F antenna (PIFA), operating in the 2.45 GHz WLAN band were developed for smart clothing applications.
Chin Kuo-Sheng +3 more
doaj +1 more source
Microwave Imaging Sensor Using Low Profile Modified Stacked Type Planar Inverted F Antenna
Sensors, 2018 Microwave imaging is the technique to identify hidden objects from structures using electromagnetic waves that can be applied in medical diagnosis.
Mohammad Tariqul Islam +4 more
doaj +1 more source
Applications of N─F─Based Reagents in the Synthesis of Organochalcogen Compounds
Asian Journal of Organic Chemistry, Volume 14, Issue 12, December 2025.Herein, we provide a comprehensive review of recent advances in synthetic strategies to access organochalcogen‐decorated compounds using N─F reagents as efficient oxidants for converting chalcogen–chalcogen bonds into electrophilic chalcogen‐based species.
Thiago Anjos +5 more
wiley +1 more source
Chemistry, Applications, and Synthesis Methods of Indole Derivatives: A Comprehensive Review
The Chemical Record, Volume 25, Issue 12, December 2025.Indole and its derivatives represent a vital class of heterocycles with broad applications in pharmaceuticals, agrochemicals, and materials science. This review explores their applications, biosynthesis, key derivatives such as tryptophan, and presents an overview of both classical and modern synthetic methodologies, with a focus on sustainable ...
Raphael Silva Moratório de Moraes +10 more
wiley +1 more source
A Frequency Tunable PIFA Design for Handset Applications
, 2012 A frequency tunable planar inverted F antenna (PIFA) is presented for use in the following bands: DCS, PCS, and UMTS. Initially, the tuning was achieved by placing a lumped capacitor, with values in the range of 1.5 to 4 pF, along the slot of the ...
Mohammad S. Bin-Melha +13 more
core +1 more source