Results 131 to 140 of about 31,467 (338)

Pattern-Reconfigurable Mobile Terminal Antenna System for MIMO and Link Stabilization in LTE

, 2018
Igor Syrytsin, H.A. Vesterager, S.B. Nørgaard, L. Thomsen, Samantha Caporal Del Barrio, Gert Frølund Pedersen   +5 more
openalex   +2 more sources

DESIGN OF RECONFIGURABLE MULTIPLE ELEMENTS MICROSTRIP RECTANGULAR LINEAR ARRAY ANTENNA [PDF]

, 2009
Mohd Tarmizi Ali, Muhammad Ramlee Kamarudin, Tharek bin Abd Rahman, Ronan Sauleau, M. N. Md Tan   +4 more
openalex   +1 more source

3D Large‐Scale Subwavelength‐Resolution Sound Sheet Tomography Based on an Active and Programmable Circular Meta‐Array

Advanced Science, EarlyView.
A programmable 2048‐element circular ultrasound array combined with a compact acoustic lens produces a thin “sound sheet” over a large field of view, and records echoes with wide angular diversity across the ring aperture. Coherence‐enhanced beamforming converts full‐matrix data into high‐contrast tomographic slices, delivering near‐diffraction‐limited
Qiu‐De Zhang, Zi‐Bin Lin, Zhuo Chen, Zhao‐Hui Liu, Jin‐Lian He, Jun‐Jie Song, Long‐Sheng Zeng, Liang Zhou, Ming‐Yue Ding, Yu‐Gui Peng, Ming Yuchi, Xue‐Feng Zhu   +11 more
wiley   +1 more source

Concept and Design of a Multi-Polarization Reconfigurable Microstrip Antenna with Symmetrical Biasing Control

Sensors
Wireless communication systems have grown rapidly, moving towards being highly compact, intelligent, and flexible to adapt to changing operating requirements.
Filipa Antunes, Amélia Ramos, Tiago Varum, João N. Matos   +3 more
doaj   +1 more source

Frequency Reconfigurable Antenna Controlled by Multi-Reed Switches

, 2014
Qiang Liu, Naizhi Wang, Changying Wu, Gao Wei, A.B. Smolders   +4 more
openalex   +2 more sources

Random Time‐Space Coding Metasurfaces for Spatial Control of the Temporal Statistics of Electromagnetic Fields

Advanced Science, EarlyView.
A probabilistic framework based on random time‐space coding metasurfaces enables control of the spatial distribution of electromagnetic fields temporal statistics. By tailoring the marginal and joint distributions of random codes, electromagnetic fields with desired mean and variance patterns are realized, enabling simultaneous transmission and jamming.
Jia Cheng Li, Jiang Han Bao, Che Liu, Tie Jun Cui   +3 more
wiley   +1 more source

High-Rate Space Coding for Reconfigurable 2x2 Millimeter-Wave MIMO Systems

, 2015
Millimeter-wave links are of a line-of-sight nature. Hence, multiple-input multiple-output (MIMO) systems operating in the millimeter-wave band may not achieve full spatial diversity or multiplexing.
Hua, Yingbo, Jafarkhani, Hamid, Mehrpouyan, Hani, Vakilian, Vida   +3 more
core  

Design of active reconfigurable wheel antenna based on PIN diodes

, 2016
Rama Krishna Dasari, V.M. Pandharipande
openalex   +2 more sources

A Compact Circular Loop Inspired Frequency and Bandwidth Reconfigurable Antenna for 4G, 5G, and X- Band Applications

, 2020
Maryam Rasool, Asif Ali Khan, Farooq Ahmed Bhatti, Bilal Ijaz, Adnan Iftikhar   +4 more
openalex   +1 more source

Study of Free‐Space Optical Quantum Network: Review and Prospectives

Advanced Science, EarlyView.
Free from the constraints of fiber connections, free‐space quantum network enables longer and more flexible quantum network connections. This review summarizes and comparatively analyzes free‐space quantum network experiments based on ground stations, satellites, and mobile platforms.
Hua‐Ying Liu, Zhenda Xie, Shining Zhu
wiley   +1 more source