Enhanced-Bandwidth Center-Fed Linear Slot Array and its Multibeam Application
In this letter, an enhanced-bandwidth multibeam antenna based on center-fed linear slot array is proposed. First, by placing the coupling slot in the center and inserting matching vias, the proposed center-fed method can enhance the bandwidth by exciting slots of linear slot array in phase in an enh...
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| creator | Zhang, Weihong Han, Ke Jiang, Zhuoxi Yan, Ze |
| description | In this letter, an enhanced-bandwidth multibeam antenna based on center-fed linear slot array is proposed. First, by placing the coupling slot in the center and inserting matching vias, the proposed center-fed method can enhance the bandwidth by exciting slots of linear slot array in phase in an enhanced bandwidth. To illustrate the operation principle, the electric fields of center-fed structure and the function equations among the phase, distance, and frequency are analyzed and presented. Then the multibeam application of the center-fed linear slot array with 4 × 4 Butler matrix beamforming network is fabricated and measured. The measured impedance and 3-dB gain bandwidths are 13.69% and 14.09%. When exciting different ports, the beam angles fluctuate around -38°, -20°, 20°, and 40°, with peak gains of 16.66, 17.65, 17.74, and 16.88 dBi |
| doi_str_mv | 10.1109/LAWP.2024.3503597 |
| format | Article |
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First, by placing the coupling slot in the center and inserting matching vias, the proposed center-fed method can enhance the bandwidth by exciting slots of linear slot array in phase in an enhanced bandwidth. To illustrate the operation principle, the electric fields of center-fed structure and the function equations among the phase, distance, and frequency are analyzed and presented. Then the multibeam application of the center-fed linear slot array with 4 × 4 Butler matrix beamforming network is fabricated and measured. The measured impedance and 3-dB gain bandwidths are 13.69% and 14.09%. When exciting different ports, the beam angles fluctuate around -38°, -20°, 20°, and 40°, with peak gains of 16.66, 17.65, 17.74, and 16.88 dBi</description><identifier>ISSN: 1536-1225</identifier><identifier>EISSN: 1548-5757</identifier><identifier>DOI: 10.1109/LAWP.2024.3503597</identifier><identifier>CODEN: IAWPA7</identifier><language>eng</language><publisher>IEEE</publisher><subject>Antenna arrays ; Bandwidth ; Butler matrices ; Butler matrix ; Couplings ; Gain ; Impedance ; Linear antenna arrays ; linear array ; Phased arrays ; Resonant frequency ; slot antenna ; Slot antennas ; substrate integrated waveguide (SIW) ; v band</subject><ispartof>IEEE antennas and wireless propagation letters, 2024-11, p.1-5</ispartof><woscitedreferencessubscribed>false</woscitedreferencessubscribed><orcidid>0009-0006-4973-1869 ; 0000-0002-7308-3244 ; 0000-0001-5001-2585 ; 0009-0002-7112-6025</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/10759763$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/10759763$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Zhang, Weihong</creatorcontrib><creatorcontrib>Han, Ke</creatorcontrib><creatorcontrib>Jiang, Zhuoxi</creatorcontrib><creatorcontrib>Yan, Ze</creatorcontrib><title>Enhanced-Bandwidth Center-Fed Linear Slot Array and its Multibeam Application</title><title>IEEE antennas and wireless propagation letters</title><addtitle>LAWP</addtitle><description>In this letter, an enhanced-bandwidth multibeam antenna based on center-fed linear slot array is proposed. 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First, by placing the coupling slot in the center and inserting matching vias, the proposed center-fed method can enhance the bandwidth by exciting slots of linear slot array in phase in an enhanced bandwidth. To illustrate the operation principle, the electric fields of center-fed structure and the function equations among the phase, distance, and frequency are analyzed and presented. Then the multibeam application of the center-fed linear slot array with 4 × 4 Butler matrix beamforming network is fabricated and measured. The measured impedance and 3-dB gain bandwidths are 13.69% and 14.09%. 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| subjects | Antenna arrays Bandwidth Butler matrices Butler matrix Couplings Gain Impedance Linear antenna arrays linear array Phased arrays Resonant frequency slot antenna Slot antennas substrate integrated waveguide (SIW) v band |
| title | Enhanced-Bandwidth Center-Fed Linear Slot Array and its Multibeam Application |
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