Results 21 to 30 of about 1,054 (130)
A Compact Multiband Multimode Antenna Employing Defected Ground Structure [PDF]
Radioengineering, 2019 An analysis of shorting pin loaded compact triple-band antenna with triple-mode characteristics is carried out in this paper. The antenna structure is designed with a rectangular patch loaded with open edge slots to excite the fundamental TM10 mode at 2 ...
J. Acharjee +3 more
doaj
Bifunctional Aziridines from Photochemically Generated FSO2NH2 for SuFEx Diversification of Alkenes
Angewandte Chemie, Volume 138, Issue 2, 9 January 2026.Photochemically generated FSO2NH2 serves as a safe, practical nitrene precursor for Rh‐catalyzed aziridination of alkenes, granting access to previously inaccessible fluorosulfonyl aziridines. These bifunctional electrophiles merge aziridine ring strain with SuFEx reactivity to provide a modular platform toward aliphatic sulfamoyl fluoride derivatives ...
Avinash Choudhury +3 more
wiley +2 more sources
Review of Reconfigurable Antennas for LTE, WiMAX and WLAN Application
Advanced Electromagnetics, 2017 To satisfy the requirement of advance wireless system various frequency and pattern reconfigurable antennas are designed. Monopole and PIFA antennas with reconfigurability are preferred for various handheld devices.
A. A. Palsokar, S. L. Lahudkar
doaj +1 more source
MIMO 5G Smartphone Antenna with Tri-Band and Decoupled Elements
Sensors, 2023 In this article, a miniaturized antenna is proposed for 4G/5G multiple input, multiple output (MIMO) applications for smartphones. The proposed antenna is composed of an inverted L-shaped antenna with decoupled elements to cover 4G (2000–2600 MHz), and a
Jianqiang Hou +4 more
doaj +1 more source
Tunable Compact UHF RFID Metal Tag Based on CPW Open Stub Feed PIFA Antenna
International Journal of Antennas and Propagation, 2012 For the ultrahigh frequency radio frequency identification (UHF RFID) metal tag, it always has the difficulties of compact designing, especially for the conjugate impedance matching, low antenna gain, and fabrication or environmental detuning.
Lingfei Mo, Chunfang Qin
doaj +1 more source
Dual Band Planar Inverted F Antenna (PIFA) with L-Shape Configuration
MATEC Web of Conferences, 2017 One of the most used antennas in mobile devices is planar inverted F antenna (PIFA). PIFA can be design in dual band frequencies due to the coverage of the wireless service in a mobile device that requires a multiple frequencies.
khlouf Munzer Mohamad +4 more
doaj +1 more source
Dual-Feed Small-Size Penta-Band PIFA for LTE/WWAN Mobile Handset Applications
International Journal of Antennas and Propagation, 2014 A dual-feed small-size penta-band PIFA for LTE/WWAN mobile handset applications is presented. The proposed PIFA is composed of a simple U-shaped patch with dual-shorting pins connected to the ground plane.
Mingyang Liu, Bin Zhao
doaj +1 more source
Advanced Electromagnetics, 2018 In this paper, a novel compact tri-band planar inverted-F antenna (PIFA) for mobile communication application is proposed. The antenna is capable to cover GSM 900 MHz, DCS 1.8 GHz and WLAN (IEEE 802.11b) 2.45 GHz bands. The proposed PIFA is composed of a
D. Kumar, D. Chowdhury, R. Ghatak
doaj +1 more source
Multishorting Pins PIFA Design for Multiband Communications
International Journal of Antennas and Propagation, 2014 A novel PIFA model with multiple shorting pins is proposed for multiband, low profile wireless applications, which has the ability to work in adverse conditions.
Muhammad Sajjad Ahmad +2 more
doaj +1 more source
Diazo Transfer From Nitrous Oxide Employing Phosphorus Ylides
Angewandte Chemie International Edition, Volume 65, Issue 22, 25 May 2026.A phosphorus ylide‐mediated strategy achieves the direct fixation of nitrous oxide (N2O) to access diazo compounds, which after intra‐ or intermolecular trapping, afford N2‐containing organic building blocks. This approach provides an alternative to hazardous diazo‐transfer reagents and establishes N2O fixation as a sustainable methodology.
Jhen‐Kuei Yu +4 more
wiley +1 more source