Pattern analysis of paraboloids fed by rectangular waveguides employing multipole expansion techniques
A multipole expansion technqiue is developed for calculating the co-polar and cross-polar radiation patterns of a prime-focus paraboloid fed by a dominant-mode rectangular waveguide feed. Initially, the feed radiation pattern is expressed in terms of electric and magnetic multipoles of different ord...
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| Veröffentlicht in: | I.R.E. transactions on antennas and propagation 1980-03, Vol.28 (2), p.238-240 |
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| container_title | I.R.E. transactions on antennas and propagation |
| container_volume | 28 |
| creator | Narasimhan, M. Sheshadri, M. |
| description | A multipole expansion technqiue is developed for calculating the co-polar and cross-polar radiation patterns of a prime-focus paraboloid fed by a dominant-mode rectangular waveguide feed. Initially, the feed radiation pattern is expressed in terms of electric and magnetic multipoles of different orders which are subsequently used to obtain the secondary radiation patterns (co-polar and cross-polar) in explicit closed form in the form of a rapid by a converging algebraic series. The validity of the analysis is effectively demonstrated by calculating the co-polar and cross-polar patterns of a typical paraboloid and comparing and results with calculations based on the direct numerical integration of the physical optics currents induced on the reflector surface. |
| doi_str_mv | 10.1109/TAP.1980.1142302 |
| format | Article |
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Initially, the feed radiation pattern is expressed in terms of electric and magnetic multipoles of different orders which are subsequently used to obtain the secondary radiation patterns (co-polar and cross-polar) in explicit closed form in the form of a rapid by a converging algebraic series. The validity of the analysis is effectively demonstrated by calculating the co-polar and cross-polar patterns of a typical paraboloid and comparing and results with calculations based on the direct numerical integration of the physical optics currents induced on the reflector surface.</description><identifier>ISSN: 0018-926X</identifier><identifier>ISSN: 0096-1973</identifier><identifier>EISSN: 1558-2221</identifier><identifier>DOI: 10.1109/TAP.1980.1142302</identifier><identifier>CODEN: IETPAK</identifier><language>eng</language><publisher>IEEE</publisher><subject>Antenna feeds ; Antenna radiation patterns ; Apertures ; Geometry ; Horn antennas ; Optical waveguides ; Pattern analysis ; Rectangular waveguides ; Scattering ; Senior members</subject><ispartof>I.R.E. transactions on antennas and propagation, 1980-03, Vol.28 (2), p.238-240</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c207t-a45c214f94587f198a0321da98321580fd67db81a4bcad70720d7de7c95dee1d3</citedby><cites>FETCH-LOGICAL-c207t-a45c214f94587f198a0321da98321580fd67db81a4bcad70720d7de7c95dee1d3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/1142302$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,780,784,796,27922,27923,54756</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/1142302$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Narasimhan, M.</creatorcontrib><creatorcontrib>Sheshadri, M.</creatorcontrib><title>Pattern analysis of paraboloids fed by rectangular waveguides employing multipole expansion techniques</title><title>I.R.E. transactions on antennas and propagation</title><addtitle>TAP</addtitle><description>A multipole expansion technqiue is developed for calculating the co-polar and cross-polar radiation patterns of a prime-focus paraboloid fed by a dominant-mode rectangular waveguide feed. Initially, the feed radiation pattern is expressed in terms of electric and magnetic multipoles of different orders which are subsequently used to obtain the secondary radiation patterns (co-polar and cross-polar) in explicit closed form in the form of a rapid by a converging algebraic series. The validity of the analysis is effectively demonstrated by calculating the co-polar and cross-polar patterns of a typical paraboloid and comparing and results with calculations based on the direct numerical integration of the physical optics currents induced on the reflector surface.</description><subject>Antenna feeds</subject><subject>Antenna radiation patterns</subject><subject>Apertures</subject><subject>Geometry</subject><subject>Horn antennas</subject><subject>Optical waveguides</subject><subject>Pattern analysis</subject><subject>Rectangular waveguides</subject><subject>Scattering</subject><subject>Senior members</subject><issn>0018-926X</issn><issn>0096-1973</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1980</creationdate><recordtype>article</recordtype><recordid>eNpFkM1LxDAQxYMouK7eBS85eeuapOk2PS6LXyC4hxW8hWkzXSPZpiat2v_ell3w9HjMezPMj5Brzhacs-Juu9oseKEmJ0XKxAmZ8SxTiRCCn5IZY1wlhVi-n5OLGD9HK5WUM1JvoOswNBQacEO0kfqathCg9M5bE2mNhpYDDVh10Ox6B4H-wDfuemswUty3zg-22dF97zrbeocUf1toovUN7bD6aOxXj_GSnNXgIl4ddU7eHu6366fk5fXxeb16SSrB8i4BmVWCy7qQmcrr8R1gqeAGCjVKplhtlrkpFQdZVmBylgtmcoN5VWQGkZt0Tm4Pe9vgp7ud3ttYoXPQoO-jFqnKmBRiDLJDsAo-xoC1boPdQxg0Z3oCqkegegKqj0DHys2hYhHxP36c_gGtj3Q6</recordid><startdate>19800301</startdate><enddate>19800301</enddate><creator>Narasimhan, M.</creator><creator>Sheshadri, M.</creator><general>IEEE</general><scope>AAYXX</scope><scope>CITATION</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>19800301</creationdate><title>Pattern analysis of paraboloids fed by rectangular waveguides employing multipole expansion techniques</title><author>Narasimhan, M. ; Sheshadri, M.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c207t-a45c214f94587f198a0321da98321580fd67db81a4bcad70720d7de7c95dee1d3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>1980</creationdate><topic>Antenna feeds</topic><topic>Antenna radiation patterns</topic><topic>Apertures</topic><topic>Geometry</topic><topic>Horn antennas</topic><topic>Optical waveguides</topic><topic>Pattern analysis</topic><topic>Rectangular waveguides</topic><topic>Scattering</topic><topic>Senior members</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Narasimhan, M.</creatorcontrib><creatorcontrib>Sheshadri, M.</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>Narasimhan, M.</au><au>Sheshadri, M.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pattern analysis of paraboloids fed by rectangular waveguides employing multipole expansion techniques</atitle><jtitle>I.R.E. transactions on antennas and propagation</jtitle><stitle>TAP</stitle><date>1980-03-01</date><risdate>1980</risdate><volume>28</volume><issue>2</issue><spage>238</spage><epage>240</epage><pages>238-240</pages><issn>0018-926X</issn><issn>0096-1973</issn><eissn>1558-2221</eissn><coden>IETPAK</coden><abstract>A multipole expansion technqiue is developed for calculating the co-polar and cross-polar radiation patterns of a prime-focus paraboloid fed by a dominant-mode rectangular waveguide feed. Initially, the feed radiation pattern is expressed in terms of electric and magnetic multipoles of different orders which are subsequently used to obtain the secondary radiation patterns (co-polar and cross-polar) in explicit closed form in the form of a rapid by a converging algebraic series. The validity of the analysis is effectively demonstrated by calculating the co-polar and cross-polar patterns of a typical paraboloid and comparing and results with calculations based on the direct numerical integration of the physical optics currents induced on the reflector surface.</abstract><pub>IEEE</pub><doi>10.1109/TAP.1980.1142302</doi><tpages>3</tpages></addata></record> |
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| identifier | ISSN: 0018-926X |
| ispartof | I.R.E. transactions on antennas and propagation, 1980-03, Vol.28 (2), p.238-240 |
| issn | 0018-926X 0096-1973 1558-2221 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_23850422 |
| source | IEEE Electronic Library (IEL) |
| subjects | Antenna feeds Antenna radiation patterns Apertures Geometry Horn antennas Optical waveguides Pattern analysis Rectangular waveguides Scattering Senior members |
| title | Pattern analysis of paraboloids fed by rectangular waveguides employing multipole expansion techniques |
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