HORN-REFLECTOR MICROWAVE ANTENNAS WITH ABSORBER LINED CONICAL FEED
A horn-reflector antenna comprising the combination of a paraboloidal reflector forming a paraboloidal reflecting surface for transmitting and receiving microwave energy; a conical feed horn for guiding microwave energy from the focus of the paraboloidal reflecting surface to the reflector; and a lo...
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| creator | KNOP, CHARLES M CHENG, YUK-BUN OSTERTAG, EDWARD L |
| description | A horn-reflector antenna comprising the combination of a paraboloidal reflector forming a paraboloidal reflecting surface for transmitting and receiving microwave energy; a conical feed horn for guiding microwave energy from the focus of the paraboloidal reflecting surface to the reflector; and a lower end portion of the inside surface of the conical horn being formed by a smooth metal wall, the balance of the inside surface of the conical horn being formed by a layer of absorber material on at least the opposed side walls of said conical horn that affect the E-plane RPE of a horizontally polarized signal, the surfaces of the metal wall and the absorber material defining a single continuous conical surface, and the absorber material increasing the Eigen value E and the spherical hybridicity factor Rs sufficiently to cause the E-plane and H-plane RPE'S to approach each other. The exposed surface or the absorber material inside said conical feed horn is preferably substantially flat. |
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The exposed surface or the absorber material inside said conical feed horn is preferably substantially flat.</description><edition>4</edition><language>eng ; fre</language><subject>ANTENNAS, i.e. RADIO AERIALS ; BASIC ELECTRIC ELEMENTS ; ELECTRICITY</subject><creationdate>1987</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19870623&DB=EPODOC&CC=CA&NR=1223345A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,776,881,25542,76290</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19870623&DB=EPODOC&CC=CA&NR=1223345A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>KNOP, CHARLES M</creatorcontrib><creatorcontrib>CHENG, YUK-BUN</creatorcontrib><creatorcontrib>OSTERTAG, EDWARD L</creatorcontrib><title>HORN-REFLECTOR MICROWAVE ANTENNAS WITH ABSORBER LINED CONICAL FEED</title><description>A horn-reflector antenna comprising the combination of a paraboloidal reflector forming a paraboloidal reflecting surface for transmitting and receiving microwave energy; a conical feed horn for guiding microwave energy from the focus of the paraboloidal reflecting surface to the reflector; and a lower end portion of the inside surface of the conical horn being formed by a smooth metal wall, the balance of the inside surface of the conical horn being formed by a layer of absorber material on at least the opposed side walls of said conical horn that affect the E-plane RPE of a horizontally polarized signal, the surfaces of the metal wall and the absorber material defining a single continuous conical surface, and the absorber material increasing the Eigen value E and the spherical hybridicity factor Rs sufficiently to cause the E-plane and H-plane RPE'S to approach each other. The exposed surface or the absorber material inside said conical feed horn is preferably substantially flat.</description><subject>ANTENNAS, i.e. RADIO AERIALS</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>ELECTRICITY</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>1987</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNqFyrEKwjAQANAsDqJ-g_cDHWz0Ay7XCwnEC1yDHUuROJVaqP-Pi7vTW97euJBVGmWfmEpWuEfSPOCDAaWwCPYwxBIAXZ_VsUKKwh1QlkiYwDN3R7N7TfNWTz8P5uy5UGjq-h7rtk7PutTPSHhpW2uvN7T_xxdY8Son</recordid><startdate>19870623</startdate><enddate>19870623</enddate><creator>KNOP, CHARLES M</creator><creator>CHENG, YUK-BUN</creator><creator>OSTERTAG, EDWARD L</creator><scope>EVB</scope></search><sort><creationdate>19870623</creationdate><title>HORN-REFLECTOR MICROWAVE ANTENNAS WITH ABSORBER LINED CONICAL FEED</title><author>KNOP, CHARLES M ; CHENG, YUK-BUN ; OSTERTAG, EDWARD L</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_CA1223345A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre</language><creationdate>1987</creationdate><topic>ANTENNAS, i.e. RADIO AERIALS</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>ELECTRICITY</topic><toplevel>online_resources</toplevel><creatorcontrib>KNOP, CHARLES M</creatorcontrib><creatorcontrib>CHENG, YUK-BUN</creatorcontrib><creatorcontrib>OSTERTAG, EDWARD L</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>KNOP, CHARLES M</au><au>CHENG, YUK-BUN</au><au>OSTERTAG, EDWARD L</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>HORN-REFLECTOR MICROWAVE ANTENNAS WITH ABSORBER LINED CONICAL FEED</title><date>1987-06-23</date><risdate>1987</risdate><abstract>A horn-reflector antenna comprising the combination of a paraboloidal reflector forming a paraboloidal reflecting surface for transmitting and receiving microwave energy; a conical feed horn for guiding microwave energy from the focus of the paraboloidal reflecting surface to the reflector; and a lower end portion of the inside surface of the conical horn being formed by a smooth metal wall, the balance of the inside surface of the conical horn being formed by a layer of absorber material on at least the opposed side walls of said conical horn that affect the E-plane RPE of a horizontally polarized signal, the surfaces of the metal wall and the absorber material defining a single continuous conical surface, and the absorber material increasing the Eigen value E and the spherical hybridicity factor Rs sufficiently to cause the E-plane and H-plane RPE'S to approach each other. The exposed surface or the absorber material inside said conical feed horn is preferably substantially flat.</abstract><edition>4</edition><oa>free_for_read</oa></addata></record> |
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| subjects | ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS ELECTRICITY |
| title | HORN-REFLECTOR MICROWAVE ANTENNAS WITH ABSORBER LINED CONICAL FEED |
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