Optimum power transfer in RF front end systems using adaptive impedance matching technique

Abstract Matching the antenna’s impedance to the RF-front-end of a wireless communications system is challenging as the impedance varies with its surround environment. Autonomously matching the antenna to the RF-front-end is therefore essential to optimize power transfer and thereby maintain the ant...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Mohammad Alibakhshikenari, Bal S. Virdee, Leyre Azpilicueta, Chan H. See, Raed Abd-Alhameed, Ayman A. Althuwayb, Francisco Falcone, Isabelle Huynen, Tayeb A. Denidni, Ernesto Limiti
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/3ef2a1883fc04296bab8d88b764f9d7c
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:3ef2a1883fc04296bab8d88b764f9d7c
record_format	dspace
spelling	oai:doaj.org-article:3ef2a1883fc04296bab8d88b764f9d7c2021-12-02T15:56:50ZOptimum power transfer in RF front end systems using adaptive impedance matching technique10.1038/s41598-021-91355-42045-2322https://doaj.org/article/3ef2a1883fc04296bab8d88b764f9d7c2021-06-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-91355-4https://doaj.org/toc/2045-2322Abstract Matching the antenna’s impedance to the RF-front-end of a wireless communications system is challenging as the impedance varies with its surround environment. Autonomously matching the antenna to the RF-front-end is therefore essential to optimize power transfer and thereby maintain the antenna’s radiation efficiency. This paper presents a theoretical technique for automatically tuning an LC impedance matching network that compensates antenna mismatch presented to the RF-front-end. The proposed technique converges to a matching point without the need of complex mathematical modelling of the system comprising of non-linear control elements. Digital circuitry is used to implement the required matching circuit. Reliable convergence is achieved within the tuning range of the LC-network using control-loops that can independently control the LC impedance. An algorithm based on the proposed technique was used to verify its effectiveness with various antenna loads. Mismatch error of the technique is less than 0.2%. The technique enables speedy convergence (< 5 µs) and is highly accurate for autonomous adaptive antenna matching networks.Mohammad AlibakhshikenariBal S. VirdeeLeyre AzpilicuetaChan H. SeeRaed Abd-AlhameedAyman A. AlthuwaybFrancisco FalconeIsabelle HuynenTayeb A. DenidniErnesto LimitiNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-12 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Mohammad Alibakhshikenari Bal S. Virdee Leyre Azpilicueta Chan H. See Raed Abd-Alhameed Ayman A. Althuwayb Francisco Falcone Isabelle Huynen Tayeb A. Denidni Ernesto Limiti Optimum power transfer in RF front end systems using adaptive impedance matching technique
description	Abstract Matching the antenna’s impedance to the RF-front-end of a wireless communications system is challenging as the impedance varies with its surround environment. Autonomously matching the antenna to the RF-front-end is therefore essential to optimize power transfer and thereby maintain the antenna’s radiation efficiency. This paper presents a theoretical technique for automatically tuning an LC impedance matching network that compensates antenna mismatch presented to the RF-front-end. The proposed technique converges to a matching point without the need of complex mathematical modelling of the system comprising of non-linear control elements. Digital circuitry is used to implement the required matching circuit. Reliable convergence is achieved within the tuning range of the LC-network using control-loops that can independently control the LC impedance. An algorithm based on the proposed technique was used to verify its effectiveness with various antenna loads. Mismatch error of the technique is less than 0.2%. The technique enables speedy convergence (< 5 µs) and is highly accurate for autonomous adaptive antenna matching networks.
format	article
author	Mohammad Alibakhshikenari Bal S. Virdee Leyre Azpilicueta Chan H. See Raed Abd-Alhameed Ayman A. Althuwayb Francisco Falcone Isabelle Huynen Tayeb A. Denidni Ernesto Limiti
author_facet	Mohammad Alibakhshikenari Bal S. Virdee Leyre Azpilicueta Chan H. See Raed Abd-Alhameed Ayman A. Althuwayb Francisco Falcone Isabelle Huynen Tayeb A. Denidni Ernesto Limiti
author_sort	Mohammad Alibakhshikenari
title	Optimum power transfer in RF front end systems using adaptive impedance matching technique
title_short	Optimum power transfer in RF front end systems using adaptive impedance matching technique
title_full	Optimum power transfer in RF front end systems using adaptive impedance matching technique
title_fullStr	Optimum power transfer in RF front end systems using adaptive impedance matching technique
title_full_unstemmed	Optimum power transfer in RF front end systems using adaptive impedance matching technique
title_sort	optimum power transfer in rf front end systems using adaptive impedance matching technique
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/3ef2a1883fc04296bab8d88b764f9d7c
work_keys_str_mv	AT mohammadalibakhshikenari optimumpowertransferinrffrontendsystemsusingadaptiveimpedancematchingtechnique AT balsvirdee optimumpowertransferinrffrontendsystemsusingadaptiveimpedancematchingtechnique AT leyreazpilicueta optimumpowertransferinrffrontendsystemsusingadaptiveimpedancematchingtechnique AT chanhsee optimumpowertransferinrffrontendsystemsusingadaptiveimpedancematchingtechnique AT raedabdalhameed optimumpowertransferinrffrontendsystemsusingadaptiveimpedancematchingtechnique AT aymanaalthuwayb optimumpowertransferinrffrontendsystemsusingadaptiveimpedancematchingtechnique AT franciscofalcone optimumpowertransferinrffrontendsystemsusingadaptiveimpedancematchingtechnique AT isabellehuynen optimumpowertransferinrffrontendsystemsusingadaptiveimpedancematchingtechnique AT tayebadenidni optimumpowertransferinrffrontendsystemsusingadaptiveimpedancematchingtechnique AT ernestolimiti optimumpowertransferinrffrontendsystemsusingadaptiveimpedancematchingtechnique
_version_	1718385386282024960

Optimum power transfer in RF front end systems using adaptive impedance matching technique

Ejemplares similares