A shaped offset-fed dual-reflector antenna
A shaping scheme based on geometric optics for offset-fed dual-reflector antennas is presented. A ray tube emerging from a symmetric feed horn is transformed, after reflections, into a circular beam with a uniform phase and a prescribed radial power distribution on the aperture. In this scheme, Snel...
Gespeichert in:
| Veröffentlicht in: | I.R.E. transactions on antennas and propagation 1979-03, Vol.27 (2), p.165-171 |
|---|---|
| Hauptverfasser: | , , |
| Format: | Artikel |
| Sprache: | eng |
| Schlagworte: | |
| Online-Zugang: | Volltext bestellen |
| Tags: |
Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
|
| container_end_page | 171 |
|---|---|
| container_issue | 2 |
| container_start_page | 165 |
| container_title | I.R.E. transactions on antennas and propagation |
| container_volume | 27 |
| creator | Lee, J. Parad, L. Chu, R. |
| description | A shaping scheme based on geometric optics for offset-fed dual-reflector antennas is presented. A ray tube emerging from a symmetric feed horn is transformed, after reflections, into a circular beam with a uniform phase and a prescribed radial power distribution on the aperture. In this scheme, Snell's law was not imposed on the main reflector. Based on this approximate solution, computer runs were taken for a 5.5-m dish baseline system, and very satisfactory results were obtained. The system so designed not only gives very low sidelobes but also provides a very high aperture efficiency. At 12 GHz an estimated 84 percent of aperture efficiency was achieved in spite of the severe constraint that the ray intersecting the edge of the main reflector meet a -10-dBi criterion. |
| doi_str_mv | 10.1109/TAP.1979.1142056 |
| format | Article |
| fullrecord | <record><control><sourceid>proquest_RIE</sourceid><recordid>TN_cdi_proquest_miscellaneous_23578117</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><ieee_id>1142056</ieee_id><sourcerecordid>23578117</sourcerecordid><originalsourceid>FETCH-LOGICAL-c292t-48ab2cb8e71ccd7574b9d70e5d58f1d563fe6d7b8eb2edcea5f07523374bf9a53</originalsourceid><addsrcrecordid>eNpFkEFLxDAQRoMoWFfvgpeePAhZk7RpkuOyuCos6GEFbyFNJljptjVpD_57s7TgaWaY9w3DQ-iWkjWlRD0eNu9rqoRKU8kIr85QRjmXmDFGz1FGCJVYserzEl3F-J3GUpZlhh42efwyA7i89z7CiH1q3WRaHMC3YMc-5KYboevMNbrwpo1ws9QV-tg9HbYveP_2_Lrd7LFlio24lKZmtpYgqLVOcFHWygkC3HHpqeNV4aFyIgE1A2fBcE8EZ0WRQK8ML1bofr47hP5ngjjqYxMttK3poJ-iZgUXklKRQDKDNvQxpn_1EJqjCb-aEn2SopMUfZKiFykpcjdHGgD4x5ftH6E2XSo</addsrcrecordid><sourcetype>Aggregation Database</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>23578117</pqid></control><display><type>article</type><title>A shaped offset-fed dual-reflector antenna</title><source>IEEE Electronic Library (IEL)</source><creator>Lee, J. ; Parad, L. ; Chu, R.</creator><creatorcontrib>Lee, J. ; Parad, L. ; Chu, R.</creatorcontrib><description>A shaping scheme based on geometric optics for offset-fed dual-reflector antennas is presented. A ray tube emerging from a symmetric feed horn is transformed, after reflections, into a circular beam with a uniform phase and a prescribed radial power distribution on the aperture. In this scheme, Snell's law was not imposed on the main reflector. Based on this approximate solution, computer runs were taken for a 5.5-m dish baseline system, and very satisfactory results were obtained. The system so designed not only gives very low sidelobes but also provides a very high aperture efficiency. At 12 GHz an estimated 84 percent of aperture efficiency was achieved in spite of the severe constraint that the ray intersecting the edge of the main reflector meet a -10-dBi criterion.</description><identifier>ISSN: 0018-926X</identifier><identifier>ISSN: 0096-1973</identifier><identifier>EISSN: 1558-2221</identifier><identifier>DOI: 10.1109/TAP.1979.1142056</identifier><identifier>CODEN: IETPAK</identifier><language>eng</language><publisher>IEEE</publisher><subject>Apertures ; Feeds ; Geometrical optics ; Optical reflection ; Optical scattering ; Power distribution ; Satellite antennas ; Satellite communication</subject><ispartof>I.R.E. transactions on antennas and propagation, 1979-03, Vol.27 (2), p.165-171</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c292t-48ab2cb8e71ccd7574b9d70e5d58f1d563fe6d7b8eb2edcea5f07523374bf9a53</citedby><cites>FETCH-LOGICAL-c292t-48ab2cb8e71ccd7574b9d70e5d58f1d563fe6d7b8eb2edcea5f07523374bf9a53</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/1142056$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27924,27925,54758</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/1142056$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Lee, J.</creatorcontrib><creatorcontrib>Parad, L.</creatorcontrib><creatorcontrib>Chu, R.</creatorcontrib><title>A shaped offset-fed dual-reflector antenna</title><title>I.R.E. transactions on antennas and propagation</title><addtitle>TAP</addtitle><description>A shaping scheme based on geometric optics for offset-fed dual-reflector antennas is presented. A ray tube emerging from a symmetric feed horn is transformed, after reflections, into a circular beam with a uniform phase and a prescribed radial power distribution on the aperture. In this scheme, Snell's law was not imposed on the main reflector. Based on this approximate solution, computer runs were taken for a 5.5-m dish baseline system, and very satisfactory results were obtained. The system so designed not only gives very low sidelobes but also provides a very high aperture efficiency. At 12 GHz an estimated 84 percent of aperture efficiency was achieved in spite of the severe constraint that the ray intersecting the edge of the main reflector meet a -10-dBi criterion.</description><subject>Apertures</subject><subject>Feeds</subject><subject>Geometrical optics</subject><subject>Optical reflection</subject><subject>Optical scattering</subject><subject>Power distribution</subject><subject>Satellite antennas</subject><subject>Satellite communication</subject><issn>0018-926X</issn><issn>0096-1973</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1979</creationdate><recordtype>article</recordtype><recordid>eNpFkEFLxDAQRoMoWFfvgpeePAhZk7RpkuOyuCos6GEFbyFNJljptjVpD_57s7TgaWaY9w3DQ-iWkjWlRD0eNu9rqoRKU8kIr85QRjmXmDFGz1FGCJVYserzEl3F-J3GUpZlhh42efwyA7i89z7CiH1q3WRaHMC3YMc-5KYboevMNbrwpo1ws9QV-tg9HbYveP_2_Lrd7LFlio24lKZmtpYgqLVOcFHWygkC3HHpqeNV4aFyIgE1A2fBcE8EZ0WRQK8ML1bofr47hP5ngjjqYxMttK3poJ-iZgUXklKRQDKDNvQxpn_1EJqjCb-aEn2SopMUfZKiFykpcjdHGgD4x5ftH6E2XSo</recordid><startdate>19790301</startdate><enddate>19790301</enddate><creator>Lee, J.</creator><creator>Parad, L.</creator><creator>Chu, R.</creator><general>IEEE</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>19790301</creationdate><title>A shaped offset-fed dual-reflector antenna</title><author>Lee, J. ; Parad, L. ; Chu, R.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c292t-48ab2cb8e71ccd7574b9d70e5d58f1d563fe6d7b8eb2edcea5f07523374bf9a53</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1979</creationdate><topic>Apertures</topic><topic>Feeds</topic><topic>Geometrical optics</topic><topic>Optical reflection</topic><topic>Optical scattering</topic><topic>Power distribution</topic><topic>Satellite antennas</topic><topic>Satellite communication</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Lee, J.</creatorcontrib><creatorcontrib>Parad, L.</creatorcontrib><creatorcontrib>Chu, R.</creatorcontrib><collection>CrossRef</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>I.R.E. transactions on antennas and propagation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Lee, J.</au><au>Parad, L.</au><au>Chu, R.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A shaped offset-fed dual-reflector antenna</atitle><jtitle>I.R.E. transactions on antennas and propagation</jtitle><stitle>TAP</stitle><date>1979-03-01</date><risdate>1979</risdate><volume>27</volume><issue>2</issue><spage>165</spage><epage>171</epage><pages>165-171</pages><issn>0018-926X</issn><issn>0096-1973</issn><eissn>1558-2221</eissn><coden>IETPAK</coden><abstract>A shaping scheme based on geometric optics for offset-fed dual-reflector antennas is presented. A ray tube emerging from a symmetric feed horn is transformed, after reflections, into a circular beam with a uniform phase and a prescribed radial power distribution on the aperture. In this scheme, Snell's law was not imposed on the main reflector. Based on this approximate solution, computer runs were taken for a 5.5-m dish baseline system, and very satisfactory results were obtained. The system so designed not only gives very low sidelobes but also provides a very high aperture efficiency. At 12 GHz an estimated 84 percent of aperture efficiency was achieved in spite of the severe constraint that the ray intersecting the edge of the main reflector meet a -10-dBi criterion.</abstract><pub>IEEE</pub><doi>10.1109/TAP.1979.1142056</doi><tpages>7</tpages></addata></record> |
| fulltext | fulltext_linktorsrc |
| identifier | ISSN: 0018-926X |
| ispartof | I.R.E. transactions on antennas and propagation, 1979-03, Vol.27 (2), p.165-171 |
| issn | 0018-926X 0096-1973 1558-2221 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_23578117 |
| source | IEEE Electronic Library (IEL) |
| subjects | Apertures Feeds Geometrical optics Optical reflection Optical scattering Power distribution Satellite antennas Satellite communication |
| title | A shaped offset-fed dual-reflector antenna |
| url | https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-01-06T03%3A21%3A40IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_RIE&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=A%20shaped%20offset-fed%20dual-reflector%20antenna&rft.jtitle=I.R.E.%20transactions%20on%20antennas%20and%20propagation&rft.au=Lee,%20J.&rft.date=1979-03-01&rft.volume=27&rft.issue=2&rft.spage=165&rft.epage=171&rft.pages=165-171&rft.issn=0018-926X&rft.eissn=1558-2221&rft.coden=IETPAK&rft_id=info:doi/10.1109/TAP.1979.1142056&rft_dat=%3Cproquest_RIE%3E23578117%3C/proquest_RIE%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=23578117&rft_id=info:pmid/&rft_ieee_id=1142056&rfr_iscdi=true |