Improvement on the wave absorbing property of a lossy frequency selective surface absorber using a magnetic substrate
An equivalent-circuit model is used to analyse the improvement of the wave absorbing performance of the lossy frequency selective surface（FSS） absorber by using a magnetic substrate,showing that it is possible to widen the wave absorbing bandwidth.Three pieces of magnetic substrates are prepared.Acc...
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| Veröffentlicht in: | Chinese physics B 2012-05, Vol.21 (5), p.378-382 |
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| container_title | Chinese physics B |
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| creator | 孙良奎 程海峰 周永江 王军 |
| description | An equivalent-circuit model is used to analyse the improvement of the wave absorbing performance of the lossy frequency selective surface（FSS） absorber by using a magnetic substrate,showing that it is possible to widen the wave absorbing bandwidth.Three pieces of magnetic substrates are prepared.According to the complex permittivity and permeability,the reflectivity of the corresponding absorber is calculated by the finite difference time-domain（FDTD） method,and the bandwidth of the reflectivity below 10 dB is optimized by genetic algorithm.The calculated results indicate that the wave absorbing performance is significantly improved by increasing the complex permeability of the substrate;the reflectivity bandwidth below 10 dB of the single layer FSS absorber can reach 3.6-18 GHz with a thickness of 5 mm,which is wider than that with a dielectric substrate.The density of the FSS absorber is only 0.92 g/cm 3.Additionally,the absorption band can be further widened by inserting a second lossy FSS.Finally,a double layer lossy FSS absorber with a magnetic substrate is fabricated based on the design result.The experimental result is consistent with the design one. |
| doi_str_mv | 10.1088/1674-1056/21/5/055201 |
| format | Article |
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absorbing performance is significantly improved by increasing the complex permeability of the substrate;the reflectivity bandwidth below 10 dB of the single layer FSS absorber can reach 3.6-18 GHz with a thickness of 5 mm,which is wider than that with a dielectric substrate.The density of the FSS absorber is only 0.92 g/cm 3.Additionally,the absorption band can be further widened by inserting a second lossy FSS.Finally,a double layer lossy FSS absorber with a magnetic substrate is fabricated based on the design result.The experimental result is consistent with the design one.</description><identifier>ISSN: 1674-1056</identifier><identifier>EISSN: 2058-3834</identifier><identifier>EISSN: 1741-4199</identifier><identifier>DOI: 10.1088/1674-1056/21/5/055201</identifier><language>eng</language><subject>Absorption ; Bandwidth ; Complex permittivity ; Density ; Frequency selective surfaces ; Mathematical models ; Noise levels ; Permeability ; Reflectivity ; 吸波性能 ; 基板 ; 时域有限差分法 ; 磁性 ; 等效电路模型 ; 表面吸收 ; 财产 ; 频率选择性</subject><ispartof>Chinese physics B, 2012-05, Vol.21 (5), p.378-382</ispartof><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c312t-593627abb47893416cd677273f49d830f1d0cfd0c944fa078386912af1fcdab83</citedby><cites>FETCH-LOGICAL-c312t-593627abb47893416cd677273f49d830f1d0cfd0c944fa078386912af1fcdab83</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Uhttp://image.cqvip.com/vip1000/qk/85823A/85823A.jpg</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>孙良奎 程海峰 周永江 王军</creatorcontrib><title>Improvement on the wave absorbing property of a lossy frequency selective surface absorber using a magnetic substrate</title><title>Chinese physics B</title><addtitle>Chinese Physics</addtitle><description>An equivalent-circuit model is used to analyse the improvement of the wave absorbing performance of the lossy frequency selective surface（FSS） absorber by using a magnetic substrate,showing that it is possible to widen the wave absorbing bandwidth.Three pieces of magnetic substrates are prepared.According to the complex permittivity and permeability,the reflectivity of the corresponding absorber is calculated by the finite difference time-domain（FDTD） method,and the bandwidth of the reflectivity below 10 dB is optimized by genetic algorithm.The calculated results indicate that the wave absorbing performance is significantly improved by increasing the complex permeability of the substrate;the reflectivity bandwidth below 10 dB of the single layer FSS absorber can reach 3.6-18 GHz with a thickness of 5 mm,which is wider than that with a dielectric substrate.The density of the FSS absorber is only 0.92 g/cm 3.Additionally,the absorption band can be further widened by inserting a second lossy FSS.Finally,a double layer lossy FSS absorber with a magnetic substrate is fabricated based on the design result.The experimental result is consistent with the design one.</description><subject>Absorption</subject><subject>Bandwidth</subject><subject>Complex permittivity</subject><subject>Density</subject><subject>Frequency selective surfaces</subject><subject>Mathematical models</subject><subject>Noise levels</subject><subject>Permeability</subject><subject>Reflectivity</subject><subject>吸波性能</subject><subject>基板</subject><subject>时域有限差分法</subject><subject>磁性</subject><subject>等效电路模型</subject><subject>表面吸收</subject><subject>财产</subject><subject>频率选择性</subject><issn>1674-1056</issn><issn>2058-3834</issn><issn>1741-4199</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2012</creationdate><recordtype>article</recordtype><recordid>eNo9kMlOwzAURS0EEqXwCUhmxybEY-wsUcUkVWIDa8tx7DYoQ2s7Rfl7HLV0Yb2Fz3l69wJwj9ETRlLmuBAsw4gXOcE5zxHnBOELsCCIy4xKyi7B4sxcg5sQfhAqMCJ0AcaPbueHg-1sH-HQw7i18FcfLNRVGHzV9BuY_nfWxwkODmrYDiFM0Hm7H21vJhhsa01skhFG77T5N62HY5h1DTu96W1sTCKqEL2O9hZcOd0Ge3eaS_D9-vK1es_Wn28fq-d1ZigmMeMlLYjQVcWELCnDhakLIYigjpW1pMjhGhmXXsmY00hIKosSE-2wM7WuJF2Cx-PelCHdG6LqmmBs2-reDmNQWHDKkSQYJZQfUeNTQm-d2vmm035SGKm5ZjVXqOYKFcGKq2PNyXs4eduh3-xT4rPIZgOVnP4BMmZ9bw</recordid><startdate>20120501</startdate><enddate>20120501</enddate><creator>孙良奎 程海峰 周永江 王军</creator><scope>2RA</scope><scope>92L</scope><scope>CQIGP</scope><scope>~WA</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7U5</scope><scope>8FD</scope><scope>H8D</scope><scope>L7M</scope></search><sort><creationdate>20120501</creationdate><title>Improvement on the wave absorbing property of a lossy frequency selective surface absorber using a magnetic substrate</title><author>孙良奎 程海峰 周永江 王军</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c312t-593627abb47893416cd677273f49d830f1d0cfd0c944fa078386912af1fcdab83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2012</creationdate><topic>Absorption</topic><topic>Bandwidth</topic><topic>Complex permittivity</topic><topic>Density</topic><topic>Frequency selective surfaces</topic><topic>Mathematical models</topic><topic>Noise levels</topic><topic>Permeability</topic><topic>Reflectivity</topic><topic>吸波性能</topic><topic>基板</topic><topic>时域有限差分法</topic><topic>磁性</topic><topic>等效电路模型</topic><topic>表面吸收</topic><topic>财产</topic><topic>频率选择性</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>孙良奎 程海峰 周永江 王军</creatorcontrib><collection>中文科技期刊数据库</collection><collection>中文科技期刊数据库-CALIS站点</collection><collection>中文科技期刊数据库-7.0平台</collection><collection>中文科技期刊数据库- 镜像站点</collection><collection>CrossRef</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>Technology Research Database</collection><collection>Aerospace Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Chinese physics B</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>孙良奎 程海峰 周永江 王军</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Improvement on the wave absorbing property of a lossy frequency selective surface absorber using a magnetic substrate</atitle><jtitle>Chinese physics B</jtitle><addtitle>Chinese Physics</addtitle><date>2012-05-01</date><risdate>2012</risdate><volume>21</volume><issue>5</issue><spage>378</spage><epage>382</epage><pages>378-382</pages><issn>1674-1056</issn><eissn>2058-3834</eissn><eissn>1741-4199</eissn><abstract>An equivalent-circuit model is used to analyse the improvement of the wave absorbing performance of the lossy frequency selective surface（FSS） absorber by using a magnetic substrate,showing that it is possible to widen the wave absorbing bandwidth.Three pieces of magnetic substrates are prepared.According to the complex permittivity and permeability,the reflectivity of the corresponding absorber is calculated by the finite difference time-domain（FDTD） method,and the bandwidth of the reflectivity below 10 dB is optimized by genetic algorithm.The calculated results indicate that the wave absorbing performance is significantly improved by increasing the complex permeability of the substrate;the reflectivity bandwidth below 10 dB of the single layer FSS absorber can reach 3.6-18 GHz with a thickness of 5 mm,which is wider than that with a dielectric substrate.The density of the FSS absorber is only 0.92 g/cm 3.Additionally,the absorption band can be further widened by inserting a second lossy FSS.Finally,a double layer lossy FSS absorber with a magnetic substrate is fabricated based on the design result.The experimental result is consistent with the design one.</abstract><doi>10.1088/1674-1056/21/5/055201</doi><tpages>5</tpages></addata></record> |
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| ispartof | Chinese physics B, 2012-05, Vol.21 (5), p.378-382 |
| issn | 1674-1056 2058-3834 1741-4199 |
| language | eng |
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| source | IOP Publishing Journals |
| subjects | Absorption Bandwidth Complex permittivity Density Frequency selective surfaces Mathematical models Noise levels Permeability Reflectivity 吸波性能 基板 时域有限差分法 磁性 等效电路模型 表面吸收 财产 频率选择性 |
| title | Improvement on the wave absorbing property of a lossy frequency selective surface absorber using a magnetic substrate |
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