Results 1 to 10 of about 5,893,470 (283)

Analysis and Digital Predistortion of in-Band Cross Modulation in Concurrent Multi-Band Transmitters [PDF]

open access: yesIEEE Access, 2022
In multiband transmitters where two or more radios share the same power amplifier (PA), interferences can usually be kept below an acceptable level with the help of multi-band digital predistortion (DPD) techniques.
Yunsik Hahn   +5 more
doaj   +9 more sources

Multi-dimensional band structure spectroscopy in the synthetic frequency dimension

open access: yesLight: Science & Applications, 2023
The concept of synthetic dimensions in photonics provides a versatile platform in exploring multi-dimensional physics. Many of these physics are characterized by band structures in more than one dimensions. Existing efforts on band structure measurements
Dali Cheng   +3 more
doaj   +2 more sources

Research of Large Capacity Optical Transmission System based on S/C/L Band

open access: yesGuangtongxin yanjiu, 2022
The optical transmission system based on all-band is considered to be one of the methods to effectively improve the transmission capacity of optical communication.
Xu ZHANG   +3 more
doaj   +3 more sources

Electromagnetic compatibility technologies based on multi-functional spoof surface plasmon polariton channels

open access: yesJPhys Photonics, 2023
High integration of modern microwave circuits and systems puts forward higher requirements for multi-function and electromagnetic compatibility (EMC) performance of transmission channels.
Ling Yun Niu   +5 more
doaj   +1 more source

Development Review of Broadband and Multi-Band Outphasing Power Amplifiers for High-Efficiency Amplification

open access: yesEnergies, 2023
Outphasing power amplifiers (OPAs) can be used in wireless information and power transfer systems due to their excellent conversion efficiency. With the rapid advancement of technology, there is a strong demand for OPAs to achieve wideband and multi-band
Yu Zhang   +7 more
doaj   +1 more source

Strategies for Upgrading an Operator's Backbone Network Beyond the C-Band: Towards Multi-Band Optical Networks

open access: yesIEEE Photonics Journal, 2021
Telecommunication networks are becoming the central linking institution of the Fourth Industrial Revolution. To cope with the associated capacity and connectivity challenges, transportation networks may explore the -neglected so far- remaining ...
Dimitris Uzunidis   +4 more
doaj   +1 more source

Study of five-level inverter double-band SHEPWM control method

open access: yesGong-kuang zidonghua, 2014
A kind of five-level inverter double-band SHEPWM control method was proposed combining Walsh transformation with SHEPWM program which can broaden modulation ratio of multi-level inverter.
YE Manyuan, CAI Hong, LI Bing, LI Song
doaj   +1 more source

Multi-Twin-SSB Modulation with Direct Detection Based on Kramers–Kronig Scheme for Long-Reach PON Downstream

open access: yesApplied Sciences, 2019
As the demand for high data volumes keeps increasing in optical access networks, transmission capacities and distance are becoming bottlenecks for passive optical networks (PONs). To solve this problem, a novel scheme based on multi-twin single sideband (
Xiang Gao   +4 more
doaj   +1 more source

CPM Signals for Satellite Navigation in the S and C Bands

open access: yesSensors, 2015
Frequency allocations in the L band suitable for global navigation satellite system (GNSS) services are getting crowded and system providers face an ever tougher job when they try to bring in new signals and services while maintaining radio frequency ...
Rui Xue, Yanbo Sun, Danfeng Zhao
doaj   +1 more source

Orthogonal Chirp Division Multiplexing-Based Multi-Numerology Communications for 6G

open access: yesIEEE Access, 2023
This paper deals with the capability of the orthogonal chirp division multiplexing (OCDM) modulation scheme to cope with multi-numerology concept in the context of next generations of communications.
Vincent Savaux
doaj   +1 more source

Home - About - Disclaimer - Privacy