Compact and High Selectivity Cross-Coupled Broadband Microstrip Bandpass Filter
ABSTRACT In this article, a new compact and high selectivity broadband microstrip bandpass filter (BPF) is proposed using one folded half‐wavelength resonator (FHWR) in the middle and two quarter‐wavelength resonators (QWRs). Due to the cross coupling between the source/load and FHWR, four transmiss...
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| Veröffentlicht in: | Microwave and optical technology letters 2013-10, Vol.55 (10), p.2501-2504 |
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| container_issue | 10 |
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| container_title | Microwave and optical technology letters |
| container_volume | 55 |
| creator | Deng, Hong-wei Zhao, Yong-jiu Fu, Yong He, Ying Gao, Si-ping |
| description | ABSTRACT
In this article, a new compact and high selectivity broadband microstrip bandpass filter (BPF) is proposed using one folded half‐wavelength resonator (FHWR) in the middle and two quarter‐wavelength resonators (QWRs). Due to the cross coupling between the source/load and FHWR, four transmission zeros can be created in the lower‐ and upper‐stopband. The transmission zero generated by the coupling between the QWR and parallel‐coupling feedline can sharpen the skirt and suppress the first harmonic of the FHWR. To verify the design concept, a microstrip BPF with 1‐dB fractional bandwidth (FBW) of 61% centered at 3 GHz is designed and fabricated. Measured results show low insertion loss and flat group delay in the entire passband as well as high out‐band rejection. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2501–2504, 2013 |
| doi_str_mv | 10.1002/mop.27845 |
| format | Article |
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In this article, a new compact and high selectivity broadband microstrip bandpass filter (BPF) is proposed using one folded half‐wavelength resonator (FHWR) in the middle and two quarter‐wavelength resonators (QWRs). Due to the cross coupling between the source/load and FHWR, four transmission zeros can be created in the lower‐ and upper‐stopband. The transmission zero generated by the coupling between the QWR and parallel‐coupling feedline can sharpen the skirt and suppress the first harmonic of the FHWR. To verify the design concept, a microstrip BPF with 1‐dB fractional bandwidth (FBW) of 61% centered at 3 GHz is designed and fabricated. Measured results show low insertion loss and flat group delay in the entire passband as well as high out‐band rejection. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2501–2504, 2013</description><identifier>ISSN: 0895-2477</identifier><identifier>EISSN: 1098-2760</identifier><identifier>DOI: 10.1002/mop.27845</identifier><identifier>CODEN: MOTLEO</identifier><language>eng</language><publisher>New York: Blackwell Publishing Ltd</publisher><subject>Bandpass filters ; Broadband ; cross-coupled ; Group delay ; half-wavelength resonator ; microstrip bandpass filter ; Microwaves ; quarter-wavelength resonator ; Reproduction ; Resonators ; Selectivity ; Skirts</subject><ispartof>Microwave and optical technology letters, 2013-10, Vol.55 (10), p.2501-2504</ispartof><rights>Copyright © 2013 Wiley Periodicals, Inc.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c3685-46c5c56e7366dccdb8cc23b4aebcb3e300099958c8582e0ebf4fdf76b632248f3</citedby><cites>FETCH-LOGICAL-c3685-46c5c56e7366dccdb8cc23b4aebcb3e300099958c8582e0ebf4fdf76b632248f3</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://onlinelibrary.wiley.com/doi/pdf/10.1002%2Fmop.27845$$EPDF$$P50$$Gwiley$$H</linktopdf><linktohtml>$$Uhttps://onlinelibrary.wiley.com/doi/full/10.1002%2Fmop.27845$$EHTML$$P50$$Gwiley$$H</linktohtml><link.rule.ids>314,780,784,1417,27924,27925,45574,45575</link.rule.ids></links><search><creatorcontrib>Deng, Hong-wei</creatorcontrib><creatorcontrib>Zhao, Yong-jiu</creatorcontrib><creatorcontrib>Fu, Yong</creatorcontrib><creatorcontrib>He, Ying</creatorcontrib><creatorcontrib>Gao, Si-ping</creatorcontrib><title>Compact and High Selectivity Cross-Coupled Broadband Microstrip Bandpass Filter</title><title>Microwave and optical technology letters</title><addtitle>Microw. Opt. Technol. Lett</addtitle><description>ABSTRACT
In this article, a new compact and high selectivity broadband microstrip bandpass filter (BPF) is proposed using one folded half‐wavelength resonator (FHWR) in the middle and two quarter‐wavelength resonators (QWRs). Due to the cross coupling between the source/load and FHWR, four transmission zeros can be created in the lower‐ and upper‐stopband. The transmission zero generated by the coupling between the QWR and parallel‐coupling feedline can sharpen the skirt and suppress the first harmonic of the FHWR. To verify the design concept, a microstrip BPF with 1‐dB fractional bandwidth (FBW) of 61% centered at 3 GHz is designed and fabricated. Measured results show low insertion loss and flat group delay in the entire passband as well as high out‐band rejection. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2501–2504, 2013</description><subject>Bandpass filters</subject><subject>Broadband</subject><subject>cross-coupled</subject><subject>Group delay</subject><subject>half-wavelength resonator</subject><subject>microstrip bandpass filter</subject><subject>Microwaves</subject><subject>quarter-wavelength resonator</subject><subject>Reproduction</subject><subject>Resonators</subject><subject>Selectivity</subject><subject>Skirts</subject><issn>0895-2477</issn><issn>1098-2760</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2013</creationdate><recordtype>article</recordtype><recordid>eNp10E9PwyAYBnBiNHFOD36DJl700I0CBXp0jduMmzP-id4IpVTRbq3Qqvv2MqseTDwRwu8h7_sAcBjBQQQhGi6reoAYJ_EW6EUw4SFiFG6DHuRJHCLC2C7Yc-4ZQogZQz2wSKtlLVUTyFUeTM3jU3CjS60a82aadZDayrkwrdq61HkwspXMsw2cG-VfGmvqYOTvtXQuGJuy0XYf7BSydPrg--yDu_HZbToNZ4vJeXo6CxWmPA4JVbGKqWaY0lypPONKIZwRqTOVYY39fEmSxFzxmCMNdVaQIi8YzShGiPAC98Fx929tq9dWu0YsjVO6LOVKV60TEcEJI74A7OnRH_pctXblp_MqQgRhiqFXJ53abOasLkRtzVLatYig2FQrfLXiq1pvh519N6Ve_w_FfHH1kwi7hHGN_vhNSPsiKMMsFveXE_GARtP0miTiAn8CIZuJUg</recordid><startdate>201310</startdate><enddate>201310</enddate><creator>Deng, Hong-wei</creator><creator>Zhao, Yong-jiu</creator><creator>Fu, Yong</creator><creator>He, Ying</creator><creator>Gao, Si-ping</creator><general>Blackwell Publishing Ltd</general><general>Wiley Subscription Services, Inc</general><scope>BSCLL</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>L7M</scope><scope>7SC</scope><scope>JQ2</scope><scope>L~C</scope><scope>L~D</scope></search><sort><creationdate>201310</creationdate><title>Compact and High Selectivity Cross-Coupled Broadband Microstrip Bandpass Filter</title><author>Deng, Hong-wei ; Zhao, Yong-jiu ; Fu, Yong ; He, Ying ; Gao, Si-ping</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3685-46c5c56e7366dccdb8cc23b4aebcb3e300099958c8582e0ebf4fdf76b632248f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2013</creationdate><topic>Bandpass filters</topic><topic>Broadband</topic><topic>cross-coupled</topic><topic>Group delay</topic><topic>half-wavelength resonator</topic><topic>microstrip bandpass filter</topic><topic>Microwaves</topic><topic>quarter-wavelength resonator</topic><topic>Reproduction</topic><topic>Resonators</topic><topic>Selectivity</topic><topic>Skirts</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Deng, Hong-wei</creatorcontrib><creatorcontrib>Zhao, Yong-jiu</creatorcontrib><creatorcontrib>Fu, Yong</creatorcontrib><creatorcontrib>He, Ying</creatorcontrib><creatorcontrib>Gao, Si-ping</creatorcontrib><collection>Istex</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts</collection><collection>ProQuest Computer Science Collection</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>Microwave and optical technology letters</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Deng, Hong-wei</au><au>Zhao, Yong-jiu</au><au>Fu, Yong</au><au>He, Ying</au><au>Gao, Si-ping</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Compact and High Selectivity Cross-Coupled Broadband Microstrip Bandpass Filter</atitle><jtitle>Microwave and optical technology letters</jtitle><addtitle>Microw. Opt. Technol. Lett</addtitle><date>2013-10</date><risdate>2013</risdate><volume>55</volume><issue>10</issue><spage>2501</spage><epage>2504</epage><pages>2501-2504</pages><issn>0895-2477</issn><eissn>1098-2760</eissn><coden>MOTLEO</coden><abstract>ABSTRACT
In this article, a new compact and high selectivity broadband microstrip bandpass filter (BPF) is proposed using one folded half‐wavelength resonator (FHWR) in the middle and two quarter‐wavelength resonators (QWRs). Due to the cross coupling between the source/load and FHWR, four transmission zeros can be created in the lower‐ and upper‐stopband. The transmission zero generated by the coupling between the QWR and parallel‐coupling feedline can sharpen the skirt and suppress the first harmonic of the FHWR. To verify the design concept, a microstrip BPF with 1‐dB fractional bandwidth (FBW) of 61% centered at 3 GHz is designed and fabricated. Measured results show low insertion loss and flat group delay in the entire passband as well as high out‐band rejection. © 2013 Wiley Periodicals, Inc. Microwave Opt Technol Lett 55:2501–2504, 2013</abstract><cop>New York</cop><pub>Blackwell Publishing Ltd</pub><doi>10.1002/mop.27845</doi><tpages>4</tpages></addata></record> |
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| subjects | Bandpass filters Broadband cross-coupled Group delay half-wavelength resonator microstrip bandpass filter Microwaves quarter-wavelength resonator Reproduction Resonators Selectivity Skirts |
| title | Compact and High Selectivity Cross-Coupled Broadband Microstrip Bandpass Filter |
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