An X‐band high‐efficiency GaN load modulated balanced amplifier MMIC
Sign Up to like & getrecommendations! Published in 2020 at "Microwave and Optical Technology Letters"
DOI: 10.1002/mop.32309
Abstract: An X‐band high‐efficiency GaN load modulated balanced amplifier monolithic microwave integrated circuit (MMIC) composed of 90° Lange Couplers at radio frequency (RF) input and output, a pair of balanced power amplifier (BPA) and a control… read more here.
Keywords: efficiency gan; band high; gan load; load modulated ... See more keywords
A Monolithically Integrated Single-Input Load-Modulated Balanced Amplifier With Enhanced Efficiency at Power Back-Off
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Journal of Solid-State Circuits"
DOI: 10.1109/jssc.2020.3048715
Abstract: In this article, the design of a power amplifier (PA) using a simple but effective architecture, namely, load-modulated balanced amplifier (LMBA), is presented. Using this architecture for PA design, it can achieve not only a… read more here.
Keywords: power back; power; load modulated; balanced amplifier ... See more keywords
Precoding for Multiuser Load-Modulated Arrays on the Downlink
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Communications Letters"
DOI: 10.1109/lcomm.2018.2849079
Abstract: Load-modulated arrays (LMA) use a single central power amplifier (CPA) and tune (modulate) the antenna loads according to the information signal, eliminating the need for traditional RF chains (consisting of DACs, mixers, and filters) at… read more here.
Keywords: precoding multiuser; modulated arrays; power; load modulated ... See more keywords
Detection of Load-Modulated Multiuser MIMO Signals
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Wireless Communications Letters"
DOI: 10.1109/lwc.2017.2771312
Abstract: A load modulated multiple-input multiple-output (MIMO) transmitter uses a single central power amplifier and tunes the antenna loads according to the information signal, eliminating the need for traditional radio frequency (RF) chains (consisting of DACs,… read more here.
Keywords: multiuser mimo; modulation; multiuser systems; mimo ... See more keywords
RF-Input Load Modulated Balanced Amplifier With Octave Bandwidth
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2017.2748123
Abstract: This paper presents an octave-bandwidth load modulated balanced amplifier (LMBA) that operates directly on a single modulated RF input. The architecture is based on the recently proposed LMBA technique, in which a control signal applied… read more here.
Keywords: balanced amplifier; modulated balanced; power; octave bandwidth ... See more keywords
Supply- and Load-Modulated Balanced Amplifier for Efficient Broadband 5G Base Stations
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2019.2915082
Abstract: This paper presents a broadband efficient power amplifier (PA) targeting sub-6-GHz 5G base station applications. Due to the demanding requirements in both peak-to-average power ratio (PAPR) and bandwidth in 5G systems, we employ a combination… read more here.
Keywords: supply modulation; modulated balanced; supply load; load modulated ... See more keywords
Asymmetrical Load Modulated Balanced Amplifier With Continuum of Modulation Ratio and Dual-Octave Bandwidth
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2020.3014616
Abstract: This article presents a new load-modulation power amplifier (PA) architecture—asymmetrical load-modulated balanced amplifier (ALMBA). It is for the first time discovered that the control amplifier (CA) of LMBA can be designed with arbitrary load modulation… read more here.
Keywords: asymmetrical load; ratio; load; modulation ... See more keywords
Reconfigurable DPD Based on ANNs for Wideband Load Modulated Balanced Amplifiers Under Dynamic Operation From 1.8 to 2.4 GHz
Sign Up to like & getrecommendations! Published in 2021 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2021.3091672
Abstract: This article proposes a methodology to ensure linear amplification of a load modulated balanced amplifier (LMBA) while keeping the power efficiency as high as possible over a frequency band ranging from 1.8 to 2.4 GHz… read more here.
Keywords: methodology; modulated balanced; dpd based; operation ... See more keywords