Multibeam steered pattern synthesis in time‐modulated antenna array with controlled harmonic radiation
2021; Wiley; Volume: 31; Issue: 5 Linguagem: Inglês
10.1002/mmce.22597
ISSN1096-4290
AutoresAvishek Chakraborty, Gopi Ram, Durbadal Mandal,
Tópico(s)Microwave Engineering and Waveguides
ResumoInternational Journal of RF and Microwave Computer-Aided EngineeringVolume 31, Issue 5 e22597 RESEARCH ARTICLE Multibeam steered pattern synthesis in time-modulated antenna array with controlled harmonic radiation Avishek Chakraborty, Corresponding Author Avishek Chakraborty avishekdreamz@gmail.com orcid.org/0000-0002-5265-3439 Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur, India Correspondence Avishek Chakraborty, Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur 713209, India. Email: avishekdreamz@gmail.comSearch for more papers by this authorGopi Ram, Gopi Ram orcid.org/0000-0002-2243-9925 Department of Electronics and Communication Engineering, National Institute of Technology, Warangal, IndiaSearch for more papers by this authorDurbadal Mandal, Durbadal Mandal orcid.org/0000-0002-4205-6534 Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur, IndiaSearch for more papers by this author Avishek Chakraborty, Corresponding Author Avishek Chakraborty avishekdreamz@gmail.com orcid.org/0000-0002-5265-3439 Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur, India Correspondence Avishek Chakraborty, Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur 713209, India. Email: avishekdreamz@gmail.comSearch for more papers by this authorGopi Ram, Gopi Ram orcid.org/0000-0002-2243-9925 Department of Electronics and Communication Engineering, National Institute of Technology, Warangal, IndiaSearch for more papers by this authorDurbadal Mandal, Durbadal Mandal orcid.org/0000-0002-4205-6534 Department of Electronics and Communication Engineering, National Institute of Technology, Durgapur, IndiaSearch for more papers by this author First published: 18 February 2021 https://doi.org/10.1002/mmce.22597Citations: 9 Funding information: Science and Engineering Research Board, Department of Science and Technology, Government of India, Grant/Award Number: EEQ/2017/000519 Read the full textAboutPDF ToolsRequest permissionExport citationAdd to favoritesTrack citation ShareShare Give accessShare full text accessShare full-text accessPlease review our Terms and Conditions of Use and check box below to share full-text version of article.I have read and accept the Wiley Online Library Terms and Conditions of UseShareable LinkUse the link below to share a full-text version of this article with your friends and colleagues. Learn more.Copy URL Share a linkShare onFacebookTwitterLinked InRedditWechat Abstract This article deals with the synthesis of multibeam steerable patterns in time-modulated arrays (TMAs) for electronic scanning. The simultaneous generation of multiple beams in TMAs can be achieved through the exploitation of undesired harmonic radiations emitted at the multiples of modulating frequency due to the periodic switching. The direction-dependent harmonic beams are capable of producing independent information channels with different spatial distributions beneficial for electronic beam steering. Multibeam patterns associated with harmonic frequencies along with the fundamental pattern can be synthesized with suitably designed switching schemes. The potentialities of linear TMAs are explored in this article to generate a simultaneous sum and difference pattern useful for monopulse tracking systems. Further assessment of multipattern operations with linear TMAs are proposed with beam steering at lower-order harmonics. Steered double sum pattern with controlled harmonic radiations are also generated to achieve a steered multibeam with simplified beamforming network. Towards this aim, both the analytical and the optimized solutions of periodic switching sequences for different multibeam patterns are developed. Modified differential evolution with a wavelet-based mutation strategy (DEWM) is employed for the optimal solution. Representative results are assessed and compared with other published literature results to show the effectiveness of the proposed methods. Open Research DATA AVAILABILITY STATEMENT Data sharing is not applicable to this article as no new data were created or analyzed in this study. Citing Literature Volume31, Issue5May 2021e22597 RelatedInformation
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