Results 41 to 50 of about 535,313 (240)
PIFA based reconfigurable multiband antenna for wireless applications
, 2010 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), Global System for Mobile Communications (GSM800 ...
AbuTarboush, HF +5 more
core +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
A Compact Broadband Planar Inverted-F Antenna with Dual-Resonant Modes
Applied Sciences, 2022 In this paper, a compact broadband planar inverted-F antenna (PIFA) with dual-resonant modes (TM1/2,2 and TM3/2,0) is proposed for 5G applications. By loading a pair of horizontal slots on the patch, the TM3/2,0 mode can be shifted downward and combined ...
Zhengya Qi +3 more
doaj +1 more source
Specific Absorption Rate and Maximum Permissible Input Power of Planar Inverted-F Antennas
Results in EngineeringThe electromagnetic wave radiation toward human heads has gained attention due to a large number of mobile phone usage, especially concerning the planar inverted-F antenna (PIFA), which is commonly used in these devices.
Nurul Inshirah Mohd Razali +2 more
doaj +1 more source
A High Isolation MIMO Antenna without Decoupling Structure for LTE 700 MHz
International Journal of Antennas and Propagation, 2015 This paper presents a long-term evolution (LTE) 700 MHz band multiple-input-multiple-output (MIMO) antenna, and high isolation between the two symmetrical antenna elements is obtained without introducing extra decoupling structure.
Yanjie Wu, Yunliang Long
doaj +1 more source
Navigating Nitration Chemistry: A Practical Guide to Reagents, Mechanisms, and Selectivity
Angewandte Chemie International Edition, Volume 65, Issue 20, 11 May 2026.This review highlights key contributions of modern nitration chemistry, emphasizing sustainable mechanistic platforms and comparing the performance of both organic and inorganic reagents across aromatic, ipso‐, olefin, alkyne, and heteroatom nitration. It provides the community with a clearer, unified perspective on current advances and facilitates the
Harry Lecomte +2 more
wiley +1 more source
Investigation of a switchable textile communication system on the human body [PDF]
, 2014 : In this paper, a switchable textile communication system working at 2.45 GHz ISM band is presented and studied for different locations within a realistic on-body environment.
Lee, Hyung-Joo +20 more
core +1 more source
ChemistryEurope, Volume 4, Issue 5, May 2026.Direct nitrogen atom insertion for skeletal editing tends to rely on superstoichiometric amounts of chemical oxidants. Herein, we report on a manganaelectro‐catalyzed nitrogen atom insertion into indenes with broad scope to access isoquinolines. Additionally, the reaction is easily scalable via electroflow.
Simon L. Homölle +4 more
wiley +1 more source
ChemistryOpen, Volume 15, Issue 4, April 2026.2,3‐Dichloro‐5,6‐dicyano‐1,4‐benzoquinone serves as a versatile oxidant and redox catalyst for CC bond formation through hydride abstraction or single‐electron transfer. Stoichiometric and catalytic systems enable benzylic, allylic, and aromatic CH activation under mild, metal‐free conditions, providing sustainable routes to complex and bioactive ...
Dohoon Cha, Sun‐Joon Min
wiley +1 more source
Dual Patch Microstrip Fed Antenna with Wide Bandwidth [PDF]
, 2009 Planar inverted F antennas (PIFA) and micro-strip antennas are widely used in wireless devices as they can easily be integrated or hidden within wireless terminals.
Low, Lester +3 more
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