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Decoupling Efficiency of a Wideband Vivaldi Focal Plane Array Feeding a Reflector Antenna
A focal plane array (FPA) feeding a reflector can be used to achieve a large field of view (FOV) with overlapping simultaneous beams. In order to provide a continuous FOV over more than an octave bandwidth, the inter-element spacing in the FPA has to be electrically small over large parts of the ban...
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| Published in: | IEEE transactions on antennas and propagation 2009-02, Vol.57 (2), p.373-382 |
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| Main Authors: | , , , |
| Format: | Article |
| Language: | English |
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| cites | cdi_FETCH-LOGICAL-c491t-f90f0b618e89df31d7fd0de6d25bcdc1121792cdde1d5ba741922da4097b9cb33 |
| container_end_page | 382 |
| container_issue | 2 |
| container_start_page | 373 |
| container_title | IEEE transactions on antennas and propagation |
| container_volume | 57 |
| creator | Ivashina, M.V. Kehn, M. Kildal, P.-S. Maaskant, R. |
| description | A focal plane array (FPA) feeding a reflector can be used to achieve a large field of view (FOV) with overlapping simultaneous beams. In order to provide a continuous FOV over more than an octave bandwidth, the inter-element spacing in the FPA has to be electrically small over large parts of the band. This will inevitably result in strong mutual coupling effects between the array elements. On transmit, the total lost power due to mutual coupling can be quantified by the decoupling efficiency, a term recently introduced for antenna arrays. This paper presents measured decoupling efficiencies of a Vivaldi element FPA operating between 2.3 and 7 GHz. The radiation patterns of the FPA are calculated for two beam excitations by using measured embedded element patterns, and the corresponding decoupling efficiencies are evaluated by using measured S -parameters between all element ports. The FPA is assumed to illuminate a deep reflector with F / D =0.35 , and the overall reflector aperture efficiencies are computed. The decoupling efficiencies are also determined through the measurements of the total radiation efficiencies in a reverberation chamber, which includes material absorption losses. |
| doi_str_mv | 10.1109/TAP.2008.2011184 |
| format | article |
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In order to provide a continuous FOV over more than an octave bandwidth, the inter-element spacing in the FPA has to be electrically small over large parts of the band. This will inevitably result in strong mutual coupling effects between the array elements. On transmit, the total lost power due to mutual coupling can be quantified by the decoupling efficiency, a term recently introduced for antenna arrays. This paper presents measured decoupling efficiencies of a Vivaldi element FPA operating between 2.3 and 7 GHz. The radiation patterns of the FPA are calculated for two beam excitations by using measured embedded element patterns, and the corresponding decoupling efficiencies are evaluated by using measured S -parameters between all element ports. The FPA is assumed to illuminate a deep reflector with F / D =0.35 , and the overall reflector aperture efficiencies are computed. The decoupling efficiencies are also determined through the measurements of the total radiation efficiencies in a reverberation chamber, which includes material absorption losses.</description><identifier>ISSN: 0018-926X</identifier><identifier>ISSN: 1558-2221</identifier><identifier>EISSN: 1558-2221</identifier><identifier>DOI: 10.1109/TAP.2008.2011184</identifier><identifier>CODEN: IETPAK</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Antenna array feed ; Antenna arrays ; Antenna feeds ; Antenna measurements ; Antenna radiation patterns ; Antennas ; aperture efficiency ; Apertures ; Applied sciences ; Arrays ; Bandwidth ; Beams (radiation) ; Broadband antennas ; Computational efficiency ; Computing time ; Decoupling ; decoupling efficiency ; Exact sciences and technology ; Focal plane ; Mutual coupling ; radiation efficiency ; Radiocommunications ; Reflector antennas ; Reflectors ; Sensors ; Systems, networks and services of telecommunications ; tapered slot antenna array ; Telecommunications ; Telecommunications and information theory ; Transmission and modulation (techniques and equipments) ; Transmitting antennas</subject><ispartof>IEEE transactions on antennas and propagation, 2009-02, Vol.57 (2), p.373-382</ispartof><rights>2009 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2009</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c491t-f90f0b618e89df31d7fd0de6d25bcdc1121792cdde1d5ba741922da4097b9cb33</citedby><cites>FETCH-LOGICAL-c491t-f90f0b618e89df31d7fd0de6d25bcdc1121792cdde1d5ba741922da4097b9cb33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/4804096$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>230,314,776,780,881,27901,27902,54771</link.rule.ids><backlink>$$Uhttp://pascal-francis.inist.fr/vibad/index.php?action=getRecordDetail&idt=21285160$$DView record in Pascal Francis$$Hfree_for_read</backlink><backlink>$$Uhttps://research.chalmers.se/publication/95688$$DView record from Swedish Publication Index$$Hfree_for_read</backlink></links><search><creatorcontrib>Ivashina, M.V.</creatorcontrib><creatorcontrib>Kehn, M.</creatorcontrib><creatorcontrib>Kildal, P.-S.</creatorcontrib><creatorcontrib>Maaskant, R.</creatorcontrib><title>Decoupling Efficiency of a Wideband Vivaldi Focal Plane Array Feeding a Reflector Antenna</title><title>IEEE transactions on antennas and propagation</title><addtitle>TAP</addtitle><description>A focal plane array (FPA) feeding a reflector can be used to achieve a large field of view (FOV) with overlapping simultaneous beams. 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The decoupling efficiencies are also determined through the measurements of the total radiation efficiencies in a reverberation chamber, which includes material absorption losses.</description><subject>Antenna array feed</subject><subject>Antenna arrays</subject><subject>Antenna feeds</subject><subject>Antenna measurements</subject><subject>Antenna radiation patterns</subject><subject>Antennas</subject><subject>aperture efficiency</subject><subject>Apertures</subject><subject>Applied sciences</subject><subject>Arrays</subject><subject>Bandwidth</subject><subject>Beams (radiation)</subject><subject>Broadband antennas</subject><subject>Computational efficiency</subject><subject>Computing time</subject><subject>Decoupling</subject><subject>decoupling efficiency</subject><subject>Exact sciences and technology</subject><subject>Focal plane</subject><subject>Mutual coupling</subject><subject>radiation efficiency</subject><subject>Radiocommunications</subject><subject>Reflector antennas</subject><subject>Reflectors</subject><subject>Sensors</subject><subject>Systems, networks and services of telecommunications</subject><subject>tapered slot antenna array</subject><subject>Telecommunications</subject><subject>Telecommunications and information theory</subject><subject>Transmission and modulation (techniques and equipments)</subject><subject>Transmitting antennas</subject><issn>0018-926X</issn><issn>1558-2221</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><recordid>eNqFks9rFDEUxwdRcK3eBS9BsJ6m5iWZTHJcaleFgkXrr1PIJC82ZXZmTXZa9r83wy578GAvCeF9vl9433yr6iXQMwCq310vr84YpaocAKDEo2oBTaNqxhg8rhaUgqo1kz-fVs9yvi1PoYRYVL_eoxunTR-H3-QihOgiDm5HxkAs-RE9dnbw5Hu8s72PZDU625Or3g5IlinZHVkh-llqyRcMPbrtmMhy2OIw2OfVk2D7jC8O90n1bXVxff6xvvz84dP58rJ2QsO2DpoG2klQqLQPHHwbPPUoPWs65x0Ag1Yz5z2CbzrbCtCMeSuobjvtOs5Pqq9733yPm6kzmxTXNu3MaKNJmNEmd2Pcje3XmLLJaNq2pZJJZqjm3ggvGtMJaY2WHpnmARoeiuvbvesmjX8mzFuzjtlhP-8-TtloyiUH4M2DpGobKqCYFvL0vyQXohgqWcDX_4C345SGkqLRwLgsIcwQ3UMujTknDMfNgZq5EqZUwsyVMIdKFMmbg6_N5SdDsoOL-ahjwFQDkhbu1Z6LiHgcC0VL6pL_BUaBvLc</recordid><startdate>20090201</startdate><enddate>20090201</enddate><creator>Ivashina, M.V.</creator><creator>Kehn, M.</creator><creator>Kildal, P.-S.</creator><creator>Maaskant, R.</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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In order to provide a continuous FOV over more than an octave bandwidth, the inter-element spacing in the FPA has to be electrically small over large parts of the band. This will inevitably result in strong mutual coupling effects between the array elements. On transmit, the total lost power due to mutual coupling can be quantified by the decoupling efficiency, a term recently introduced for antenna arrays. This paper presents measured decoupling efficiencies of a Vivaldi element FPA operating between 2.3 and 7 GHz. The radiation patterns of the FPA are calculated for two beam excitations by using measured embedded element patterns, and the corresponding decoupling efficiencies are evaluated by using measured S -parameters between all element ports. The FPA is assumed to illuminate a deep reflector with F / D =0.35 , and the overall reflector aperture efficiencies are computed. 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| ispartof | IEEE transactions on antennas and propagation, 2009-02, Vol.57 (2), p.373-382 |
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| language | eng |
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| source | IEEE Electronic Library (IEL) Journals |
| subjects | Antenna array feed Antenna arrays Antenna feeds Antenna measurements Antenna radiation patterns Antennas aperture efficiency Apertures Applied sciences Arrays Bandwidth Beams (radiation) Broadband antennas Computational efficiency Computing time Decoupling decoupling efficiency Exact sciences and technology Focal plane Mutual coupling radiation efficiency Radiocommunications Reflector antennas Reflectors Sensors Systems, networks and services of telecommunications tapered slot antenna array Telecommunications Telecommunications and information theory Transmission and modulation (techniques and equipments) Transmitting antennas |
| title | Decoupling Efficiency of a Wideband Vivaldi Focal Plane Array Feeding a Reflector Antenna |
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