Scanning Characteristics of Metamirror Antennas With Subwavelength Focal Distance
We investigate beam scanning by lateral feed displacement in novel metasurface-based reflector antennas with extremely short focal distances. Electric field distributions of the waves reflected from the antenna are studied numerically and experimentally for defocusing angles up to 24°. The results s...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 2016-08, Vol.64 (8), p.3656-3660 |
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| container_issue | 8 |
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| container_title | IEEE transactions on antennas and propagation |
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| creator | Tcvetkova, Svetlana N. Asadchy, Viktar S. Tretyakov, Sergei A. |
| description | We investigate beam scanning by lateral feed displacement in novel metasurface-based reflector antennas with extremely short focal distances. Electric field distributions of the waves reflected from the antenna are studied numerically and experimentally for defocusing angles up to 24°. The results show that despite their subwavelength focal distances, the scanning ability of the metamirrors is similar to that of short-focus reflectarrays (focal distance about several wavelengths). In addition to offering a possibility to realize extremely small focal distances, metamirror antennas are practically penetrable and invisible for any radiation outside of the operating frequency range. |
| doi_str_mv | 10.1109/TAP.2016.2565732 |
| format | Article |
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Electric field distributions of the waves reflected from the antenna are studied numerically and experimentally for defocusing angles up to 24°. The results show that despite their subwavelength focal distances, the scanning ability of the metamirrors is similar to that of short-focus reflectarrays (focal distance about several wavelengths). In addition to offering a possibility to realize extremely small focal distances, metamirror antennas are practically penetrable and invisible for any radiation outside of the operating frequency range.</description><identifier>ISSN: 0018-926X</identifier><identifier>EISSN: 1558-2221</identifier><identifier>DOI: 10.1109/TAP.2016.2565732</identifier><identifier>CODEN: IETPAK</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>Antenna arrays ; Antenna feeds ; Antennas ; Beam scanning ; Beams (radiation) ; Displacement ; Electromagnetic waveguides ; feed displacement ; Frequency ranges ; Lenses ; Magnetic separation ; Mathematical models ; metasurfaces ; reflectarrays ; Reflector antennas ; Scanning ; Wavelengths</subject><ispartof>IEEE transactions on antennas and propagation, 2016-08, Vol.64 (8), p.3656-3660</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2016</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c366t-9fadcbd51dfbdc0fd9e1e66f03f98e8ee9e440fc942f4d45479f004a7e7836293</citedby><cites>FETCH-LOGICAL-c366t-9fadcbd51dfbdc0fd9e1e66f03f98e8ee9e440fc942f4d45479f004a7e7836293</cites><orcidid>0000-0001-6948-3010</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/7467472$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27923,27924,54757</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/7467472$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Tcvetkova, Svetlana N.</creatorcontrib><creatorcontrib>Asadchy, Viktar S.</creatorcontrib><creatorcontrib>Tretyakov, Sergei A.</creatorcontrib><title>Scanning Characteristics of Metamirror Antennas With Subwavelength Focal Distance</title><title>IEEE transactions on antennas and propagation</title><addtitle>TAP</addtitle><description>We investigate beam scanning by lateral feed displacement in novel metasurface-based reflector antennas with extremely short focal distances. Electric field distributions of the waves reflected from the antenna are studied numerically and experimentally for defocusing angles up to 24°. The results show that despite their subwavelength focal distances, the scanning ability of the metamirrors is similar to that of short-focus reflectarrays (focal distance about several wavelengths). In addition to offering a possibility to realize extremely small focal distances, metamirror antennas are practically penetrable and invisible for any radiation outside of the operating frequency range.</description><subject>Antenna arrays</subject><subject>Antenna feeds</subject><subject>Antennas</subject><subject>Beam scanning</subject><subject>Beams (radiation)</subject><subject>Displacement</subject><subject>Electromagnetic waveguides</subject><subject>feed displacement</subject><subject>Frequency ranges</subject><subject>Lenses</subject><subject>Magnetic separation</subject><subject>Mathematical models</subject><subject>metasurfaces</subject><subject>reflectarrays</subject><subject>Reflector antennas</subject><subject>Scanning</subject><subject>Wavelengths</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2016</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNpdkEtLAzEUhYMoWKt7wc2AGzdT85o8lqVaFSoqrehuSDM37ZRpRpOp4r83pcWFq8uB7xwuH0LnBA8Iwfp6NnweUEzEgBaikIweoB4pCpVTSskh6mFMVK6peD9GJzGuUuSK8x56mVrjfe0X2WhpgrEdhDp2tY1Z67JH6My6DqEN2dB34L2J2VvdLbPpZv5tvqABv0hp3FrTZDepZ7yFU3TkTBPhbH_76HV8Oxvd55Onu4fRcJJbJkSXa2cqO68KUrl5ZbGrNBAQwmHmtAIFoIFz7Kzm1PGKF1xqhzE3EqRigmrWR1e73Y_Qfm4gduW6jhaaxnhoN7EkihVCCEVYQi__oat2E3z6LlFYaUmVIInCO8qGNsYArvwI9dqEn5Lgcuu4TI7LreNy7zhVLnaVGgD-cMmF5JKyX4WveFM</recordid><startdate>201608</startdate><enddate>201608</enddate><creator>Tcvetkova, Svetlana N.</creator><creator>Asadchy, Viktar S.</creator><creator>Tretyakov, Sergei A.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| subjects | Antenna arrays Antenna feeds Antennas Beam scanning Beams (radiation) Displacement Electromagnetic waveguides feed displacement Frequency ranges Lenses Magnetic separation Mathematical models metasurfaces reflectarrays Reflector antennas Scanning Wavelengths |
| title | Scanning Characteristics of Metamirror Antennas With Subwavelength Focal Distance |
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