Results 21 to 30 of about 3,242,183 (213)

Polarization-Insensitive Electromagnetic Metamaterial Design for Multi-Band Energy Harvesting

IEEE Access, 2023
A multi-band and polarization-insensitive metamaterial is proposed to harvest electromagnetic energy efficiently in three frequency bands. Based on a square resonant ring and cross resonant structure, a metamaterial is designed to achieve high energy ...
Hui Zhang, Yang Li, Wenrui Hu, Qibin Lu, Bojun Zhang, Lamar Y. Yang   +5 more
doaj   +1 more source

A Novel Multi-Band Reduced Sampling Rate and I/Q Compensation Technique for RF Power Amplifiers

IEEE Access, 2019
In this paper, a novel multi-band reduced sampling rate technique is proposed for power amplifier (PA) linearization system. It is used to enhance performance and reduce hardware costs in spectrum aggregation discontinuous broadband systems and ...
Jingmei Zhao, Linbo Zhai, Feng Yang
doaj   +1 more source

High Performance Receiver Design for RX Carrier Aggregation

Journal of Low Power Electronics and Applications, 2017
Carrier aggregation is one of the key features to increase the data rate given a scarce bandwidth spectrum. This paper describes the design of a high performance receiver suitable for carrier aggregation in LTE-Advanced and future 5 G standards.
Jusung Kim, Bon-Hyun Ku, Sanghun Lee, Sungchan Kim, Keunkwan Ryu   +4 more
doaj   +1 more source

Multitask bidirectional digital coding metasurface for independent controls of multiband and full-space electromagnetic waves

Nanophotonics, 2022
Full-space metasurfaces demonstrate powerful abilities in manipulating electromagnetic (EM) waves, but most of them are usually single band. Here, a multiband bidirectional digital coding metasurface is proposed for multiple tasks, which can achieve ...
Wu Liang Wei, Ma Hui Feng, Gou Yue, Wu Rui Yuan, Wang Zheng Xing, Xiao Qiang, Cui Tie Jun   +6 more
doaj   +1 more source

Holographic multi-band superconductor

Physics Letters B, 2011
We propose a gravity dual for the holographic superconductor with multi-band carriers. Moreover, the currents of these carriers are unified under a global flavored SO(3) symmetry, which is dual to the bulk SO(3) gauge symmetry. We study the phase diagram of our model, and find it qualitatively agrees with the one for the realistic 2-band superconductor,
Huang, Ching-Yu, Lin, Feng-Li, Maity, Debaprasad   +2 more
openaire   +3 more sources

An X/Ku Dual-Band Switch-Free Reconfigurable GaAs LNA MMIC Based on Coupled Line

IEEE Access, 2020
This article presents an X/Ku dual-band switch-free reconfigurable GaAs low-noise amplifier (LNA) realized by inter-stage and output-stage coupled lines.
Chunshuang Xie, Zhongjun Yu, Cheng Tan
doaj   +1 more source

Complementary Split Ring Resonator-Inspired Antenna for Wearable Multiband Applications Using Biodegradable Polylactic Acid [PDF]

Mechanics of Advanced Composite Structures
In this manuscript, replacing traditional antennas with biodegradable PLA substrates aims to reduce e-waste in today's technologically advanced age.
saranya Srinivasan, Hariharan Selvaraj, Gopi Pitchaimani, Kamal Bishnoi   +3 more
doaj   +1 more source

Multi-Band Multi-Functional Metasurface-Based Reflective Polarization Converter for Linear and Circular Polarizations

IEEE Access, 2021
In this paper, we present a simple metasurface based multiband reflective polarization converter for both linear and circular polarizations. We show that, on one hand, the proposed structure can convert the polarization of linearly polarized waves to the
Rahul Dutta, Jeet Ghosh, Zhengbao Yang, Xingqi Zhang   +3 more
doaj   +1 more source

Multi-view image coding with wavelet lifting and in-band disparity compensation [PDF]

, 2005
This paper presents a novel framework to achieve scalable multi-view image coding. As open loop operation, the wavelet lifting scheme for geometric filtering has been exploited to overcome the limitation of SNR scalability and to attain view scalability.
Anantrasirichai, N, C.N. Canagarajah, Canagarajah, CN, D.R. Bull, N. Anantrasirichai, Bull, DR   +5 more
core   +1 more source

Multi-Band Analogue Electromagnetically Induced Transparency in DoubleTuned Metamaterials

Nanomaterials, 2021
A multi-band analogue electromagnetically induced transparency (A-EIT) metamaterial is proposed. The structure is composed of liquid crystal (LC) layer and a graphene strips layer on both sides of silicon dioxide.
Wei Huang, Ningye He, Renxia Ning, Zhenhai Chen   +3 more
doaj   +1 more source