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dc.contributor.authorLian, Peiyuan
dc.contributor.authorWang, Congsi
dc.contributor.authorXiang, Binbin
dc.contributor.authorShi, Yu
dc.contributor.authorXue, Song
dc.date.accessioned2020-01-14T11:20:42Z
dc.date.available2020-01-14T11:20:42Z
dc.date.issued2019-03-07
dc.identifier.citationPeiyuan, L. I. A. N., Congsi, W. A. N. G., Binbin, X. I. A. N. G., Yu, S. H. I., & Song, X. U. E. (2019). Gradient-based optimization method for producing a contoured beam with single-fed reflector antenna. Journal of Systems Engineering and Electronics, 30(1), 22-29.en_US
dc.identifier.doi10.21629/JSEE.2019.01.03
dc.identifier.urihttp://hdl.handle.net/10034/623080
dc.description© 2019 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.en_US
dc.description.abstractA gradient-based optimization method for producing a contoured beam by using a single-fed reflector antenna is presented. First, a quick and accurate pattern approximation formula based on physical optics (PO) is adopted to calculate the gradients of the directivity with respect to reflector's nodal displacements. Because the approximation formula is a linear function of nodal displacements, the gradient can be easily derived. Then, the method of the steepest descent is adopted, and an optimization iteration procedure is proposed. The iteration procedure includes two loops: an inner loop and an outer loop. In the inner loop, the gradient and pattern are calculated by matrix operation, which is very fast by using the pre-calculated data in the outer loop. In the outer loop, the ideal terms used in the inner loop to calculate the gradient and pattern are updated, and the real pattern is calculated by the PO method. Due to the high approximation accuracy, when the outer loop is performed once, the inner loop can be performed many times, which will save much time because the integration is replaced by matrix operation. In the end, a contoured beam covering the continental United States (CONUS) is designed, and simulation results show the effectiveness of the proposed algorithm.en_US
dc.publisherIEEEen_US
dc.relation.urlhttps://ieeexplore.ieee.org/abstract/document/8660540/authors#authorsen_US
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en_US
dc.subjectreflector antennasen_US
dc.subjectsingle feeden_US
dc.subjectcontoured beamen_US
dc.subjectgradient-based optimization methoden_US
dc.titleGradient-based optimization method for producing a contoured beam with single-fed reflector antennaen_US
dc.typeArticleen_US
dc.contributor.departmentXidian University; University of Chester; Chinese Academy of Sciencesen_US
dc.identifier.journalJournal of Systems Engineering and Electronicsen_US
or.grant.openaccessYesen_US
rioxxterms.funderUnfundeden_US
rioxxterms.identifier.projectUnfundeden_US
rioxxterms.versionAMen_US
rioxxterms.versionofrecordhttps://doi.org/10.21629/JSEE.2019.01.03en_US
rioxxterms.licenseref.startdate2219-03-07
rioxxterms.publicationdate2019-03-07
dc.dateAccepted2019-02-01
dc.date.deposited2020-01-14en_US
dc.indentifier.issn1004-4132en_US


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