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dc.contributor.authorHur, Byul
dc.contributor.authorEisenstadt, William R.
dc.contributor.authorMelde, Kathleen L.
dc.date.accessioned2019-11-07T18:51:29Z
dc.date.available2019-11-07T18:51:29Z
dc.date.issued2019-09-19
dc.identifier.citationHur, B.; Eisenstadt, W.R.; Melde, K.L. Testing and Validation of Adaptive Impedance Matching System for Broadband Antenna. Electronics 2019, 8, 1055.en_US
dc.identifier.issn2079-9292
dc.identifier.doi10.3390/electronics8091055
dc.identifier.urihttp://hdl.handle.net/10150/635022
dc.description.abstractBroad RF impedance matching is challenging; however, the need for broadband matching is found frequently in modern RF and wireless systems with multiple wireless standards. Moreover, in 5G technology, multiple frequency bands are used, and these systems typically employ a broadband antenna or multiple antennas. Antenna impedances vary from design targets for many reasons including manufacturing process variations or antenna environment changes. An adaptive impedance matching system (AIMS) for testing and validation is introduced, and its implementation is shown in this paper. The AIMS can control impedance matching tuner settings to provide an arbitrary impedance frequency-varying load that meets user-defined conditions. This AIMS provides a testing and validation system for broadband antennas that can be characterized by various settings of the impedance matching tuner. As a device under test (DUT), a three-stub reconfigurable filter was used as the impedance matching tuner on a RT/Duroid 6010 RF board. It was integrated with a control circuit board. This AIMS implementation also included an antenna impedance tuner that can vary the distance between the antenna and the ground plane. This model represents practical antenna impedance variations. The AIMS controls a network analyzer and the impendence matching tuner. The adaptive control program on a PC was developed to perform an effective two-pass tuning strategy. This article presents the successful automated tuned results and their numerical evaluations of three cases that were generated by the antenna impedance tuner.en_US
dc.description.sponsorshipSRC Global Research Collaboration (GRC) program; Freescale Semiconductor [1663.001, 1836.026]; Hur's Texas A&M start-up research funden_US
dc.language.isoenen_US
dc.publisherMDPIen_US
dc.rightsCopyright © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).en_US
dc.subjectadaptive matching tuneren_US
dc.subjectRF impedance tuneren_US
dc.subjectbroadband matchingen_US
dc.subjectMIMOen_US
dc.subject5G technologyen_US
dc.subjectantenna impedance tuneren_US
dc.titleTesting and Validation of Adaptive Impedance Matching System for Broadband Antennaen_US
dc.typeArticleen_US
dc.contributor.departmentUniv Arizona, Dept Elect & Comp Engnen_US
dc.identifier.journalELECTRONICSen_US
dc.description.noteOpen access journalen_US
dc.description.collectioninformationThis item from the UA Faculty Publications collection is made available by the University of Arizona with support from the University of Arizona Libraries. If you have questions, please contact us at repository@u.library.arizona.edu.en_US
dc.eprint.versionFinal published versionen_US
dc.source.volume8
dc.source.issue9
dc.source.beginpage1055
refterms.dateFOA2019-11-07T18:51:30Z


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