A Coherent Multiple Beamforming Network for a Non-uniform Circular Antenna Array

Simple item page
dc.contributor.authorArce, Armando
dc.contributor.authorStevens-Navarro, Enrique
dc.contributor.authorCardenas-Juarez, Marco
dc.contributor.authorPineda-Rico, Ulises
dc.contributor.authorCovarrubias, David H.
dc.coverage.issue1cs
dc.coverage.volume28cs
dc.date.accessioned2020-04-23T06:56:43Z
dc.date.available2020-04-23T06:56:43Z
dc.date.issued2019-04cs
dc.description.abstractThis work proposes and describes a modular and innovative beamforming network (BFN) to feed a nonequally spaced circular antenna array. The structure is based on a set of alternated power combiners and dividers that delivers a Gaussian-like amplitude distribution and coherent (in-phase) signals. A multiple beam antenna system to generate two main beams in the same aperture with a coherent network for a nonuniform array with beam shaping and beam steering properties is simulated and analyzed. Furthermore, a comparative analysis based on uniform and nonuniform circular antenna arrays fed by the proposed coherent network is conducted. The complex signals and the nonuniform circular aperture are optimized using the well known differential evolution technique. Numerical experiments show the efficiency and improvement of the coherent network with a nonuniform aperture over uniform, with an advantage in average equal to 1.8dB of directivity and -2dB of side lobe level. Moreover, the simulation results exhibit an aperture reuse and complexity reduction of the proposed coherent network configuration compared with a conventional antenna array with direct feeding, where each main beam is shaped and steered with the half of control signal inputs.en
dc.formattextcs
dc.format.extent74-83cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2019 vol. 28, č. 1, s. 74-83. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2019.0074en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/186832
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2019/19_01_0074_0083.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectMultiple beamforming networken
dc.subjectnon-uniform circular arrayen
dc.subjectdifferential evolutionen
dc.subjectcoherent beamforming networken
dc.subjectmultiple beamsen
dc.titleA Coherent Multiple Beamforming Network for a Non-uniform Circular Antenna Arrayen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
Files
Original bundle
Now showing 1 - 1 of 1
Thumbnail Image
Name:
19_01_0074_0083.pdf
Size:
646.49 KB
Format:
Adobe Portable Document Format
Description:
Download
Collections
2019/1