Results 221 to 230 of about 3,855 (302)

Four-Port Compact Metamaterial MIMO Antenna with Stub-Based Bandwidth Improvement. [PDF]

Materials (Basel)
Vargas-Balderas AA, Tirado-Méndez JA, Linares-Miranda R, Jardón-Aguilar H, Flores-Leal R.   +4 more
europepmc   +1 more source

Theory of Supercritical Coupling and Generalized Bound States in the Continuum

Laser &Photonics Reviews, EarlyView.
We develop a general theory of supercritical coupling and generalized bound states in the continuum (gBICs), revealing how interference between radiative and absorptive channels enables quality factors beyond conventional material‐loss limits. The framework unifies non‐Hermitian mode coupling, causality‐driven reactive interactions, and interference ...
Sergio Balestrieri, Bruno Miranda, Silvia Romano, Gianluigi Zito   +3 more
wiley   +1 more source

Efficient Pattern Modeling Method for Parabolic Cylindrical Antennas Incorporating Multi-Source Structural Errors. [PDF]

Sensors (Basel)
Xue S, Liang W, Zhu M, Ren S.
europepmc   +1 more source

Reconfigurable Giant Nonreciprocity at Near‐Normal Incidence via Phase‐Change Magneto‐Optical Metagratings

Laser &Photonics Reviews, EarlyView.
A phase‐change magneto‐optical metagrating combines GST switching with InAs guided‐mode resonances to achieve strong nonreciprocal absorption contrast near normal incidence. A static magnetic bias creates direction‐dependent resonant splitting, while GST crystallization quenches and latches the response.
Ye Ming Qing, Yi Shen, Jun Wu, Shunsuke Murai, Zhaogang Dong, Koichi Okamoto   +5 more
wiley   +1 more source

Dual-band composite high gain MIMO antenna for 5G NR applications employing shareable small cell radio unit. [PDF]

Sci Rep
Asadullah, Shoaib N, Khan MU, Ahmed A, Aburas AA, Abbasi QH.   +5 more
europepmc   +1 more source

Mapping Causal Biology: Mendelian Randomization in the Era of Big Data

Med Research, EarlyView.
Mendelian randomization (MR) leverages genetic variants to mitigate confounding biases in causal inference. This review systematically maps MR's methodological evolution, highlights its expanding applications in epidemiology and drug target validation, and outlines future directions for overcoming current biases through dynamic, multi‐omics, and cross ...
Xuanlu Shen, Chunrun Qu, Zeyu Wang, Jinglin Zhou, Hongwei Liu, Yingjie Li, Bowei Liu, Hao Zhang, Nan Zhang, Jingwei Zhang, Quan Cheng   +10 more
wiley   +1 more source

A Review on Mutual Coupling in Antenna Arrays and Decoupling Methods in MRI Antenna Arrays

IOSR Journal of Engineering, 2013
openaire   +1 more source

Leveraging butterfly meta material structures in a symmetric stub-loaded microstrip MIMO antenna for advanced biomedical and security applications. [PDF]

Sci Rep
Vineetha KV, Madhav BTP, Siva Kumar M, Chinthaginjala R, Al-Turjman F, Hamdi M.   +5 more
europepmc   +1 more source

Revisiting Inductively Coupled Wireless Coils in MRI: Mitigating Over‐Coupling With Preamplifiers

Magnetic Resonance in Medicine, EarlyView.
ABSTRACT Purpose Inductively coupled coils enhance local MRI sensitivity, yet strong coupling with nearby primary coils typically causes resonance splitting and impedance mismatch, which are traditionally considered detrimental. This work investigates why inductively coupled coils can still function effectively even in the presence of severe coupling ...
Ming Lu, John C. Gore, Xinqiang Yan
wiley   +1 more source

Millimeter-wave broadband dual-circularly polarized array antenna loaded with metasurface. [PDF]

Sci Rep
Wu T, Zhang Z.
europepmc   +1 more source