ELECTROMAGNETIC RADIATION ABSORBER
A radiation absorber comprising multiple layers has a conducting base layer, and at least first and second further layers, each separated by a dielectric material, the first and second layers having patches thereon of highly conducting material, and defining resonant cavities in cooperation with the...
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| creator | SAMBLES, John, Roy LOCKYEAR, Matthew, J HIBBINS, Alastair, Paul LAWRENCE, Christopher, Robert HOBSON, Peter, Allen |
| description | A radiation absorber comprising multiple layers has a conducting base layer, and at least first and second further layers, each separated by a dielectric material, the first and second layers having patches thereon of highly conducting material, and defining resonant cavities in cooperation with the dielectric material, wherein the resonant cavities formed on adjacent layers differ in frequency. Characteristics of the patch, such as size or shape may vary on each layer to provide different resonant frequencies, and/or dielectric or magnetic properties of the dielectric material, and/or separation distance of the patches may be varied. In some embodiments, complex dielectrics may have their loss factors adapted to tune a resonant frequency, or to adapt its resonant bandwidth. |
| format | Patent |
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Characteristics of the patch, such as size or shape may vary on each layer to provide different resonant frequencies, and/or dielectric or magnetic properties of the dielectric material, and/or separation distance of the patches may be varied. In some embodiments, complex dielectrics may have their loss factors adapted to tune a resonant frequency, or to adapt its resonant bandwidth.</description><language>eng ; fre ; ger</language><subject>ANTENNAS, i.e. RADIO AERIALS ; BASIC ELECTRIC ELEMENTS ; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ; ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ; ELECTRICITY ; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC ; GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS ; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS ; PRINTED CIRCUITS ; TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ; TECHNICAL SUBJECTS COVERED BY FORMER USPC ; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><creationdate>2014</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=20140604&DB=EPODOC&CC=EP&NR=2737577A2$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25564,76547</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20140604&DB=EPODOC&CC=EP&NR=2737577A2$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>SAMBLES, John, Roy</creatorcontrib><creatorcontrib>LOCKYEAR, Matthew, J</creatorcontrib><creatorcontrib>HIBBINS, Alastair, Paul</creatorcontrib><creatorcontrib>LAWRENCE, Christopher, Robert</creatorcontrib><creatorcontrib>HOBSON, Peter, Allen</creatorcontrib><title>ELECTROMAGNETIC RADIATION ABSORBER</title><description>A radiation absorber comprising multiple layers has a conducting base layer, and at least first and second further layers, each separated by a dielectric material, the first and second layers having patches thereon of highly conducting material, and defining resonant cavities in cooperation with the dielectric material, wherein the resonant cavities formed on adjacent layers differ in frequency. Characteristics of the patch, such as size or shape may vary on each layer to provide different resonant frequencies, and/or dielectric or magnetic properties of the dielectric material, and/or separation distance of the patches may be varied. In some embodiments, complex dielectrics may have their loss factors adapted to tune a resonant frequency, or to adapt its resonant bandwidth.</description><subject>ANTENNAS, i.e. RADIO AERIALS</subject><subject>BASIC ELECTRIC ELEMENTS</subject><subject>CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS</subject><subject>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</subject><subject>ELECTRICITY</subject><subject>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</subject><subject>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</subject><subject>MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS</subject><subject>PRINTED CIRCUITS</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC</subject><subject>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2014</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZFBy9XF1Dgny93V093MN8XRWCHJ08XQM8fT3U3B0CvYPcnIN4mFgTUvMKU7lhdLcDApuriHOHrqpBfnxqcUFicmpeakl8a4BRubG5qbm5o5GxkQoAQAFKCJA</recordid><startdate>20140604</startdate><enddate>20140604</enddate><creator>SAMBLES, John, Roy</creator><creator>LOCKYEAR, Matthew, J</creator><creator>HIBBINS, Alastair, Paul</creator><creator>LAWRENCE, Christopher, Robert</creator><creator>HOBSON, Peter, Allen</creator><scope>EVB</scope></search><sort><creationdate>20140604</creationdate><title>ELECTROMAGNETIC RADIATION ABSORBER</title><author>SAMBLES, John, Roy ; LOCKYEAR, Matthew, J ; HIBBINS, Alastair, Paul ; LAWRENCE, Christopher, Robert ; HOBSON, Peter, Allen</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_EP2737577A23</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; fre ; ger</language><creationdate>2014</creationdate><topic>ANTENNAS, i.e. RADIO AERIALS</topic><topic>BASIC ELECTRIC ELEMENTS</topic><topic>CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS</topic><topic>ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR</topic><topic>ELECTRICITY</topic><topic>GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC</topic><topic>GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS</topic><topic>MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS</topic><topic>PRINTED CIRCUITS</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC</topic><topic>TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS</topic><toplevel>online_resources</toplevel><creatorcontrib>SAMBLES, John, Roy</creatorcontrib><creatorcontrib>LOCKYEAR, Matthew, J</creatorcontrib><creatorcontrib>HIBBINS, Alastair, Paul</creatorcontrib><creatorcontrib>LAWRENCE, Christopher, Robert</creatorcontrib><creatorcontrib>HOBSON, Peter, Allen</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>SAMBLES, John, Roy</au><au>LOCKYEAR, Matthew, J</au><au>HIBBINS, Alastair, Paul</au><au>LAWRENCE, Christopher, Robert</au><au>HOBSON, Peter, Allen</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ELECTROMAGNETIC RADIATION ABSORBER</title><date>2014-06-04</date><risdate>2014</risdate><abstract>A radiation absorber comprising multiple layers has a conducting base layer, and at least first and second further layers, each separated by a dielectric material, the first and second layers having patches thereon of highly conducting material, and defining resonant cavities in cooperation with the dielectric material, wherein the resonant cavities formed on adjacent layers differ in frequency. Characteristics of the patch, such as size or shape may vary on each layer to provide different resonant frequencies, and/or dielectric or magnetic properties of the dielectric material, and/or separation distance of the patches may be varied. In some embodiments, complex dielectrics may have their loss factors adapted to tune a resonant frequency, or to adapt its resonant bandwidth.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ANTENNAS, i.e. RADIO AERIALS BASIC ELECTRIC ELEMENTS CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS PRINTED CIRCUITS TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION TECHNICAL SUBJECTS COVERED BY FORMER USPC TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS |
| title | ELECTROMAGNETIC RADIATION ABSORBER |
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