Results 1 to 10 of about 18,390 (268)

Decoupling of Dual-Polarized Antenna Arrays Using Non-Resonant Metasurface

Sensors, 2022
A non-resonant metasurface (NRMS) concept is reported in this paper to improve the isolation of dual-polarized and wideband large-scale antenna arrays. By properly designing the NRMS, it can perform stable negative permeability and positive permittivity ...
Shengyuan Luo, Peng Mei, Yiming Zhang, Gert Frølund Pedersen, Shuai Zhang   +4 more
doaj   +1 more source

Multi‐Dimensional Multiplexed Metasurface for Multifunctional Near‐Field Modulation by Physics‐Driven Intelligent Design

Advanced Science
Metasurface is a revolutionary platform to achieve desired properties by artificially engineering meta‐atom's arrangements. However, the explosively expanding design space of advanced metasurfaces with multiple degrees of freedom (MDOF) has made the ...
Jian Lin Su, Zi Xuan Cai, Yiqian Mao, Long Chen, Xin Yi Yu, Zhi Cai Yu, Qian Ma, Si Qi Huang, Jianan Zhang, Jian Wei You, Tie Jun Cui   +10 more
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Dual-Frequency Linear-to-Circular Polarization Converter for Ka-Band Applications

Sensors, 2022
A dual-band linear-to-circular planar polarization converter based on a multilayer printed circuit board (PCB) is proposed and demonstrated. Each cell of the periodic surface is formed by six substrate layers separated by five foam spacers. The three top
Francesco Greco, Emilio Arnieri
doaj   +1 more source

Enabling High-Fidelity Ultra-Wideband Radio Channel Emulation: Band-Stitching and Digital Predistortion Concepts

IEEE Open Journal of Antennas and Propagation, 2022
Channel emulators are the key instrument in radio performance testing. The fidelity of the emulated channel with respect to the target channel models directly affects the credibility of the testing result.
Yilin Ji, Wei Fan
doaj   +1 more source

Physics‐Informed Deep Learning Method for Real‐Time Multi‐Harmonic Beamforming Based on Space‐Time‐Coding Metasurface

Advanced Electronic Materials
Space‐time‐coding metasurfaces (STCMs) enable simultaneous controls of electromagnetic wave across multiple harmonics, but designing high‐performance coding sequences in real time remains challenging.
Jiang Han Bao, Che Liu, Yi Ning Zheng, Lei Zhang, Wen Ming Yu, Lianlin Li, Tie Jun Cui   +6 more
doaj   +1 more source

Dual-Band Shared-Aperture Base-Station Antenna Array With Dual Polarization Using Filtering Magnetoelectric Dipole Antenna

IEEE Open Journal of Antennas and Propagation
This paper presents a dual-band shared-aperture antenna array using a filtering magnetoelectric (ME) dipole antenna for the application of mobile-communication base station.
Zhi Jing Xiao, Yun Fei Cao, Jia Sheng Lin, Yu Lan, Quan Xue   +4 more
doaj   +1 more source

mm-Wave Waveguide Traveling-Wave Power Combiner Design Using an Equivalent Circuit Model

IEEE Access, 2019
The waveguide traveling-wave power combiner (WTWPC) falls into the category of asymmetrical non-isolated power combiners, and, therefore, the active load modulation occurring within the combiner was investigated.
Honglei Sun, Xiao-Wei Zhu, Ruijia Liu, Zhi Hao Jiang   +3 more
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Quad-Band 3D Rectenna Array for Ambient RF Energy Harvesting

International Journal of Antennas and Propagation, 2020
This paper presents a quad-band, 3D mountable rectenna module for ambient energy harvesting. With the aim of powering up Internet of Things (IoT) nodes in practical ambient environments, a hybrid approach of combining power, both at RF and DC, is adopted
Fatima Khalid, Warda Saeed, Nosherwan Shoaib, Muhammad U. Khan, Hammad M. Cheema   +4 more
doaj   +1 more source

A Multi-Band Magneto-Electric Dipole Antenna With Wide Beam-Width

IEEE Access, 2020
A multi-band and wide beam-width magneto-electric (ME) dipole antenna is proposed in this report. The proposed antenna has a simple structure, which consists of four $\Gamma $ -shaped electric plates which can change the current distribution and realize ...
Guangwei Yang, Shuai Zhang, Jianying Li, Yiming Zhang, Gert Frolund Pedersen   +4 more
doaj   +1 more source

1-bit reconfigurable transmitarray with low loss and wide bandwidth

New Journal of Physics, 2021
We present a novel X-band 1-bit reconfigurable transmitarray with excellent polarization conversion. The basic element consists of two layers of metal patterns connected by a metal through-hole and feed structures.
Wen Hua Gao, Mao Chen, Qiang Cheng, Rui Wen Shao, Jing Cheng Liang, Yuan Gao, Tie Jun Cui   +6 more
doaj   +1 more source