Results 151 to 160 of about 291,893 (342)

Dimensionality reduced antenna array for beamforming/steering. [PDF]

Commun Eng
Xia S, Zhao M, Ma Q, Zhang X, Yang L, Pi Y, Chung H, Li F, Reniers A, Koonen AMJ, Cao Z.   +10 more
europepmc   +1 more source

Narrow Element Spacing Array Antennas with Level Sensitive Phase Multipliers.

, 2001
Hideyuki Nebiya, Nozomu Hasebe
openalex   +2 more sources

Opportunities of Semiconducting Oxide Nanostructures as Advanced Luminescent Materials in Photonics

Advanced Materials, EarlyView.
The review discusses the challenges of wide and ultrawide bandgap semiconducting oxides as a suitable material platform for photonics. They offer great versatility in terms of tuning microstructure, native defects, doping, anisotropy, and micro‐ and nano‐structuring. The review focuses on their light emission, light‐confinement in optical cavities, and
Ana Cremades, Pedro Hidalgo, David Maestre, Ruth Martínez‐Casado, Emilio Nogales, Beatriz Rodríguez, G. Cristian Vásquez, Bianchi Méndez   +7 more
wiley   +1 more source

A Multi-Beam Phased Array Receiver Front-End with High Performance Ceramic SiP. [PDF]

Micromachines (Basel)
Zhang H, Guo LX, Dun S, Li X, Xu X.
europepmc   +1 more source

Global Navigation Satellite System Signal Phase Combining and Performance of Distributed Antenna Arrays [PDF]

Wenfei Guo, Jun Zhang, Chi Guo, Weijun Feng   +3 more
openalex   +1 more source

Flexoelectrically Induced Polar Topology in Twisted SrTiO3 Membranes

Advanced Materials, EarlyView.
Twisted SrTiO3 bilayers host polar vortices of flexoelectric origin, revealed through combined experiment and theory. By reconstructing polarization from the toroidal moment of strain gradients, the work establishes a 3D chiral state with broken inversion and mirror symmetries.
Isabel Tenreiro, Hugo Aramberri, Víctor Rouco, Gabriel Sánchez‐Santolino, Mariona Cabero, Fernando Gallego, David Sánchez‐Manzano, José M. González‐Calbet, Federico Mompeán, Mar García‐Hernández, Alberto Rivera‐Calzada, Jorge Íñiguez‐González, Carlos León, Jacobo Santamaría   +13 more
wiley   +1 more source

Directivity Maximization of Difference Patterns for Monopulse Microstrip Patch Arrays with Sidelobe Constraints. [PDF]

Micromachines (Basel)
Li W, Jiao YC, Zhang Y, Zhang L.
europepmc   +1 more source

The frequency response of phased-array antennas

, 1989
Benjamin Brock
openalex   +2 more sources

Measuring phased‐array antenna beampatterns with high dynamic range for the Murchison Widefield Array using 137 MHz ORBCOMM satellites [PDF]

, 2015
Abraham R. Neben, Richard F. Bradley, Jacqueline N. Hewitt, G. Bernardi, Judd D. Bowman, F. Briggs, R. J. Cappallo, A. A. Deshpande, R. Goeke, L. J. Greenhill, B. J. Hazelton, M. Johnston‐Hollitt, D. L. Kaplan, C. J. Lonsdale, S. R. McWhirter, D. A. Mitchell, M. F. Morales, E. Morgan, Divya Oberoi, S. M. Ord, T. Prabu, N. Udaya Shankar, K. S. Srivani, R. Subrahmanyan, S. J. Tingay, R. B. Wayth, R. L. Webster, A. Williams, Christopher Williams   +28 more
openalex   +1 more source

Intelligent Acousto‐Electrical Metamaterials (IAM) for Sound Source Detection

Advanced Materials, EarlyView.
Our proposed metamaterial concept enables sound source detection using a single material, in contrast to conventional arrays that require dozens or even hundreds of transducers. We show that the coupled acoustic–vibrational–electrical responses in piezoelectric metamaterials give rise to topology‐governed charge transport, producing distinct voltage ...
Victor Couëdel, Haotian Lu, Jiayan Zhang, Desheng Yao, Ananya Bhardwaj, Ramiro Contreras, Karim Sabra, Xiaoyu (Rayne) Zheng   +7 more
wiley   +1 more source