Directivity Improvement of Vivaldi Antenna Using Double-Slot Structure
The conventional Vivaldi antenna is known for its ultrawideband characteristic, but low directivity. In order to improve the directivity, a double-slot structure is proposed to design a new Vivaldi antenna. The two slots are excited in uniform amplitude and phase by using a T-junction power divider....
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| Veröffentlicht in: | IEEE antennas and wireless propagation letters 2013, Vol.12, p.1380-1383 |
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| container_title | IEEE antennas and wireless propagation letters |
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| creator | Wang, Ya-Wei Wang, Guang-Ming Zong, Bin-Feng |
| description | The conventional Vivaldi antenna is known for its ultrawideband characteristic, but low directivity. In order to improve the directivity, a double-slot structure is proposed to design a new Vivaldi antenna. The two slots are excited in uniform amplitude and phase by using a T-junction power divider. The double-slot structure can generate plane-like waves in the E-plane of the antenna. As a result, directivity of the double-slot Vivaldi antenna is significantly improved by comparison to a conventional Vivaldi antenna of the same size. The measured results show that impedance bandwidth of the double-slot Vivaldi antenna is from 2.5 to 15 GHz. Gain and directivity of the proposed antenna is considerably improved at the frequencies above 6 GHz. Furthermore, the main beam splitting at high frequencies of the conventional Vivaldi antenna on thick dielectric substrates is eliminated by the double-slot structure. |
| doi_str_mv | 10.1109/LAWP.2013.2285182 |
| format | Article |
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In order to improve the directivity, a double-slot structure is proposed to design a new Vivaldi antenna. The two slots are excited in uniform amplitude and phase by using a T-junction power divider. The double-slot structure can generate plane-like waves in the E-plane of the antenna. As a result, directivity of the double-slot Vivaldi antenna is significantly improved by comparison to a conventional Vivaldi antenna of the same size. The measured results show that impedance bandwidth of the double-slot Vivaldi antenna is from 2.5 to 15 GHz. Gain and directivity of the proposed antenna is considerably improved at the frequencies above 6 GHz. Furthermore, the main beam splitting at high frequencies of the conventional Vivaldi antenna on thick dielectric substrates is eliminated by the double-slot structure.</description><identifier>ISSN: 1536-1225</identifier><identifier>EISSN: 1548-5757</identifier><identifier>DOI: 10.1109/LAWP.2013.2285182</identifier><identifier>CODEN: IAWPA7</identifier><language>eng</language><publisher>IEEE</publisher><subject>Antenna measurements ; Antenna radiation patterns ; Dielectrics ; Double-slot structure ; Frequency measurement ; Gain measurement ; high directivity ; Vivaldi antenna ; Vivaldi antennas</subject><ispartof>IEEE antennas and wireless propagation letters, 2013, Vol.12, p.1380-1383</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c265t-3c3ca9c9ec409b74e46992f68dfc0d17256fbfc2ed280de4ed846e3cdb25774d3</citedby><cites>FETCH-LOGICAL-c265t-3c3ca9c9ec409b74e46992f68dfc0d17256fbfc2ed280de4ed846e3cdb25774d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/6626603$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,4010,27900,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/6626603$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Wang, Ya-Wei</creatorcontrib><creatorcontrib>Wang, Guang-Ming</creatorcontrib><creatorcontrib>Zong, Bin-Feng</creatorcontrib><title>Directivity Improvement of Vivaldi Antenna Using Double-Slot Structure</title><title>IEEE antennas and wireless propagation letters</title><addtitle>LAWP</addtitle><description>The conventional Vivaldi antenna is known for its ultrawideband characteristic, but low directivity. In order to improve the directivity, a double-slot structure is proposed to design a new Vivaldi antenna. The two slots are excited in uniform amplitude and phase by using a T-junction power divider. The double-slot structure can generate plane-like waves in the E-plane of the antenna. As a result, directivity of the double-slot Vivaldi antenna is significantly improved by comparison to a conventional Vivaldi antenna of the same size. The measured results show that impedance bandwidth of the double-slot Vivaldi antenna is from 2.5 to 15 GHz. Gain and directivity of the proposed antenna is considerably improved at the frequencies above 6 GHz. Furthermore, the main beam splitting at high frequencies of the conventional Vivaldi antenna on thick dielectric substrates is eliminated by the double-slot structure.</description><subject>Antenna measurements</subject><subject>Antenna radiation patterns</subject><subject>Dielectrics</subject><subject>Double-slot structure</subject><subject>Frequency measurement</subject><subject>Gain measurement</subject><subject>high directivity</subject><subject>Vivaldi antenna</subject><subject>Vivaldi antennas</subject><issn>1536-1225</issn><issn>1548-5757</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kM1KAzEUhYMoWKsPIG7yAlOTm7-ZZWltLRQUanU5zCQ3EpnOlExa6Nvr0OLqnMX5zuIj5JGzCeeseF5Pv94nwLiYAOSK53BFRlzJPFNGmeuhC51xAHVL7vr-hzFutBIjspiHiDaFY0gnutrtY3fEHbaJdp5-hmPVuECnbcK2rei2D-03nXeHusFs03SJblI82HSIeE9ufNX0-HDJMdkuXj5mr9n6bbmaTdeZBa1SJqywVWELtJIVtZEodVGA17nzljluQGlfewvoIGcOJbpcahTW1aCMkU6MCT__2tj1fURf7mPYVfFUclYOIspBRDmIKC8i_pinMxMQ8X-vNWjNhPgFfbdbHg</recordid><startdate>2013</startdate><enddate>2013</enddate><creator>Wang, Ya-Wei</creator><creator>Wang, Guang-Ming</creator><creator>Zong, Bin-Feng</creator><general>IEEE</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope></search><sort><creationdate>2013</creationdate><title>Directivity Improvement of Vivaldi Antenna Using Double-Slot Structure</title><author>Wang, Ya-Wei ; Wang, Guang-Ming ; Zong, Bin-Feng</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c265t-3c3ca9c9ec409b74e46992f68dfc0d17256fbfc2ed280de4ed846e3cdb25774d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Antenna measurements</topic><topic>Antenna radiation patterns</topic><topic>Dielectrics</topic><topic>Double-slot structure</topic><topic>Frequency measurement</topic><topic>Gain measurement</topic><topic>high directivity</topic><topic>Vivaldi antenna</topic><topic>Vivaldi antennas</topic><toplevel>online_resources</toplevel><creatorcontrib>Wang, Ya-Wei</creatorcontrib><creatorcontrib>Wang, Guang-Ming</creatorcontrib><creatorcontrib>Zong, Bin-Feng</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998–Present</collection><collection>IEEE/IET Electronic Library (IEL)</collection><collection>CrossRef</collection><jtitle>IEEE antennas and wireless propagation letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Wang, Ya-Wei</au><au>Wang, Guang-Ming</au><au>Zong, Bin-Feng</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Directivity Improvement of Vivaldi Antenna Using Double-Slot Structure</atitle><jtitle>IEEE antennas and wireless propagation letters</jtitle><stitle>LAWP</stitle><date>2013</date><risdate>2013</risdate><volume>12</volume><spage>1380</spage><epage>1383</epage><pages>1380-1383</pages><issn>1536-1225</issn><eissn>1548-5757</eissn><coden>IAWPA7</coden><abstract>The conventional Vivaldi antenna is known for its ultrawideband characteristic, but low directivity. In order to improve the directivity, a double-slot structure is proposed to design a new Vivaldi antenna. The two slots are excited in uniform amplitude and phase by using a T-junction power divider. The double-slot structure can generate plane-like waves in the E-plane of the antenna. As a result, directivity of the double-slot Vivaldi antenna is significantly improved by comparison to a conventional Vivaldi antenna of the same size. The measured results show that impedance bandwidth of the double-slot Vivaldi antenna is from 2.5 to 15 GHz. Gain and directivity of the proposed antenna is considerably improved at the frequencies above 6 GHz. Furthermore, the main beam splitting at high frequencies of the conventional Vivaldi antenna on thick dielectric substrates is eliminated by the double-slot structure.</abstract><pub>IEEE</pub><doi>10.1109/LAWP.2013.2285182</doi><tpages>4</tpages></addata></record> |
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| ispartof | IEEE antennas and wireless propagation letters, 2013, Vol.12, p.1380-1383 |
| issn | 1536-1225 1548-5757 |
| language | eng |
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| source | IEEE/IET Electronic Library (IEL) |
| subjects | Antenna measurements Antenna radiation patterns Dielectrics Double-slot structure Frequency measurement Gain measurement high directivity Vivaldi antenna Vivaldi antennas |
| title | Directivity Improvement of Vivaldi Antenna Using Double-Slot Structure |
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