Results 61 to 70 of about 211,037 (301)
Realization of dual-band topological states in Su–Schrieffer–Heeger-like photonic crystal slabs
Results in Physics, 2023 We design the bilayer mirror-symmetric (I-shaped) photonic crystal slabs supporting dual-band topological edge states simultaneously, which is confirmed by the topological phases and localized field distributions.
Ying Chen +4 more
doaj +1 more source
Structural biology of ferritin nanocages
FEBS Letters, EarlyView.Ferritin is a conserved iron‐storage protein that sequesters iron as a ferric mineral core within a nanocage, protecting cells from oxidative damage and maintaining iron homeostasis. This review discusses ferritin biology, structure, and function, and highlights recent cryo‐EM studies revealing mechanisms of ferritinophagy, cellular iron uptake, and ...
Eloise Mastrangelo, Flavio Di Pisa
wiley +1 more source
Behavioral Modeling and Predistortion of Dual-Band Power Amplifiers
IEEE AccessDual-band power amplifiers (PAs) are essential components in modern wireless communication systems. Compared to single band PAs, dual-band PAs enable efficient utilization of spectrum resources with lower capital and operational expenses.
Majid Ahmed +4 more
doaj +1 more source
A 24/77 GHz Dual-Band Receiver for Automotive Radar Applications
IEEE Access, 2019 A fully-integrated 24/77 GHz dual-band receiver is presented for automotive radar applications. The proposed receiver consists of a dual-band LNA, a dual-band sub-sampling PLL, and a wideband mixer, operating at 24 and 77 GHz alternatively.
Xiang Yi +8 more
doaj +1 more source
IEEE Access, 2020 Currently, peak-to-average power ratio (PAPR) degrades the performance of the wireless system and has been widely studied in the orthogonal frequency division multiplexing (OFDM) systems.
Chen Changwei +4 more
doaj +1 more source
Dual-Band RF Wireless Power Transfer System with a Shared-Aperture Dual-Band Tx Array Antenna
Energies, 2021 In this paper, a dual-band RF wireless power transfer (WPT) system with a shared-aperture dual-band Tx array antenna for 2.4 and 5.8 GHz is proposed. The final configuration of the Tx array, which is made up of 2.4 GHz right-handed circular polarization (
Chan-Mi Song +5 more
doaj +1 more source
Design of Dual-band Branch-Line Coupler Based on Shunt Open-Circuit DCRLH Cells [PDF]
, 2013 In this article, the shunt open-circuit dual composite right/left-handed (DCRLH) cell is initially proposed and one dual-band branch-line coupler based on the proposed cells is designed.
Bo Tian, Guang-Ming Wang, Ke Lu
core
Mechanisms of IgE‐mediated food allergy and the role of allergen‐specific B cells
FEBS Letters, EarlyView.Food allergy arises when allergen‐specific B cells preferentially produce immunoglobulin E (IgE) antibodies against harmless foods. This article explains the mechanisms driving IgE‐mediated reactions, highlights the central role of these B cells, and discusses how natural tolerance (NT) and oral immunotherapy (OIT) can reshape allergic immune responses.
Juan‐Felipe López +2 more
wiley +1 more source
A Low-Profile Dual-Band Dual-Polarized Antenna With an AMC Reflector for 5G Communications
IEEE Access, 2020 A low-profile dual-band dual-polarized antenna with an artificial magnetic conductor (AMC) reflector is proposed for 5G communications. The antenna consists of a pair of crossed dual-polarized dual-band bowtie dipoles and a dual-band AMC reflector.
Qingchong Liu +3 more
doaj +1 more source
Dual band combiner for horn antenna [PDF]
, 1980 A corrugated horn antenna, adapted to be coupled to a waveguide at its apex for X-band excitation is further adapted to be connected to waveguides through a circumferential slot for S-band excitation at four distinct phases selected for the desired S ...
Cohn, S. B., Williams, W. F.
core +1 more source