Quasi-Reflectionless Double-Sided Parallel-Strip Line Bandpass Filter With Enhanced Selectivity
A novel quasi-reflectionless bandpass filter (BPF) using double-sided parallel-strip line (DSPSL) is proposed in this brief. It is composed of a BPF and two symmetric absorptive bandstop filters (ABSFs) terminated by a pair of resistors that can dissipate the input untransmitted signal energy. Throu...
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| Veröffentlicht in: | IEEE transactions on circuits and systems. II, Express briefs Express briefs, 2022-02, Vol.69 (2), p.339-343 |
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| container_end_page | 343 |
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| container_title | IEEE transactions on circuits and systems. II, Express briefs |
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| creator | Zhu, Ya-Hui Cai, Jing Chen, Jian-Xin |
| description | A novel quasi-reflectionless bandpass filter (BPF) using double-sided parallel-strip line (DSPSL) is proposed in this brief. It is composed of a BPF and two symmetric absorptive bandstop filters (ABSFs) terminated by a pair of resistors that can dissipate the input untransmitted signal energy. Through detailed analysis, the high characteristic impedance is required for the open-circuited stubs of the ABSFs to enhance the selectivity. This cannot be realized in traditional microstrip designs, but it can be obtained easily by offsetting the DSPSL. Meanwhile, the BPF with T-shaped structure consists of a half-wavelength ( \lambda /2 ) DSPSL with a centrally-loaded \lambda /2 stub, which answers for generating two transmission zeros (TZs) to achieve better out-of-band suppression. For demonstration, a prototype is designed, fabricated and measured, and the simulated and measured results with good agreement are presented. |
| doi_str_mv | 10.1109/TCSII.2021.3099508 |
| format | Article |
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It is composed of a BPF and two symmetric absorptive bandstop filters (ABSFs) terminated by a pair of resistors that can dissipate the input untransmitted signal energy. Through detailed analysis, the high characteristic impedance is required for the open-circuited stubs of the ABSFs to enhance the selectivity. This cannot be realized in traditional microstrip designs, but it can be obtained easily by offsetting the DSPSL. Meanwhile, the BPF with T-shaped structure consists of a half-wavelength (<inline-formula> <tex-math notation="LaTeX">\lambda /2 </tex-math></inline-formula>) DSPSL with a centrally-loaded <inline-formula> <tex-math notation="LaTeX">\lambda /2 </tex-math></inline-formula> stub, which answers for generating two transmission zeros (TZs) to achieve better out-of-band suppression. For demonstration, a prototype is designed, fabricated and measured, and the simulated and measured results with good agreement are presented.]]></description><identifier>ISSN: 1549-7747</identifier><identifier>EISSN: 1558-3791</identifier><identifier>DOI: 10.1109/TCSII.2021.3099508</identifier><identifier>CODEN: ITCSFK</identifier><language>eng</language><publisher>New York: IEEE</publisher><subject>absorptive bandstop filter (ABSF) ; Absorptivity ; Band-pass filters ; Bandpass filters ; Bandstop filters ; double-sided parallel-strip lines (DSPSL) ; Impedance ; Layout ; Matched filters ; Passband ; Power transmission lines ; Quasi-reflectionless bandpass filter (BPF) ; Resistors ; Selectivity ; Substrates ; transmission zero (TZ)</subject><ispartof>IEEE transactions on circuits and systems. II, Express briefs, 2022-02, Vol.69 (2), p.339-343</ispartof><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. (IEEE) 2022</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c295t-434c40361e336867d535b18ec7af86f69c0963edc9042387b42dd73a35a190363</citedby><cites>FETCH-LOGICAL-c295t-434c40361e336867d535b18ec7af86f69c0963edc9042387b42dd73a35a190363</cites><orcidid>0000-0001-9566-3410 ; 0000-0002-8703-5294</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/9494501$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27901,27902,54733</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/9494501$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Zhu, Ya-Hui</creatorcontrib><creatorcontrib>Cai, Jing</creatorcontrib><creatorcontrib>Chen, Jian-Xin</creatorcontrib><title>Quasi-Reflectionless Double-Sided Parallel-Strip Line Bandpass Filter With Enhanced Selectivity</title><title>IEEE transactions on circuits and systems. II, Express briefs</title><addtitle>TCSII</addtitle><description><![CDATA[A novel quasi-reflectionless bandpass filter (BPF) using double-sided parallel-strip line (DSPSL) is proposed in this brief. It is composed of a BPF and two symmetric absorptive bandstop filters (ABSFs) terminated by a pair of resistors that can dissipate the input untransmitted signal energy. Through detailed analysis, the high characteristic impedance is required for the open-circuited stubs of the ABSFs to enhance the selectivity. This cannot be realized in traditional microstrip designs, but it can be obtained easily by offsetting the DSPSL. Meanwhile, the BPF with T-shaped structure consists of a half-wavelength (<inline-formula> <tex-math notation="LaTeX">\lambda /2 </tex-math></inline-formula>) DSPSL with a centrally-loaded <inline-formula> <tex-math notation="LaTeX">\lambda /2 </tex-math></inline-formula> stub, which answers for generating two transmission zeros (TZs) to achieve better out-of-band suppression. For demonstration, a prototype is designed, fabricated and measured, and the simulated and measured results with good agreement are presented.]]></description><subject>absorptive bandstop filter (ABSF)</subject><subject>Absorptivity</subject><subject>Band-pass filters</subject><subject>Bandpass filters</subject><subject>Bandstop filters</subject><subject>double-sided parallel-strip lines (DSPSL)</subject><subject>Impedance</subject><subject>Layout</subject><subject>Matched filters</subject><subject>Passband</subject><subject>Power transmission lines</subject><subject>Quasi-reflectionless bandpass filter (BPF)</subject><subject>Resistors</subject><subject>Selectivity</subject><subject>Substrates</subject><subject>transmission zero (TZ)</subject><issn>1549-7747</issn><issn>1558-3791</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNo9kMtOwzAQRS0EEqXwA7CJxDrF9thxvITSQqVKPFLE0nKTieoqJMFOkPr3pLRiNbO4547mEHLN6IQxqu9W02yxmHDK2QSo1pKmJ2TEpExjUJqd7nehY6WEOicXIWwp5ZoCHxHz1tvg4ncsK8w719QVhhA9Nv26wjhzBRbRq_W2qrCKs867Nlq6GqMHWxetHZJzV3Xoo0_XbaJZvbF1PhAZ_pX9uG53Sc5KWwW8Os4x-ZjPVtPnePnytJjeL-Oca9nFAkQuKCQMAZI0UYUEuWYp5sqWaVImOqc6ASxyTQWHVK0FLwoFFqRlwyMJjMntobf1zXePoTPbpvf1cNLwhINQjIIYUvyQyn0TgsfStN59Wb8zjJq9SPMn0uxFmqPIAbo5QA4R_wEttJCUwS_Cdm5d</recordid><startdate>20220201</startdate><enddate>20220201</enddate><creator>Zhu, Ya-Hui</creator><creator>Cai, Jing</creator><creator>Chen, Jian-Xin</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><orcidid>https://orcid.org/0000-0001-9566-3410</orcidid><orcidid>https://orcid.org/0000-0002-8703-5294</orcidid></search><sort><creationdate>20220201</creationdate><title>Quasi-Reflectionless Double-Sided Parallel-Strip Line Bandpass Filter With Enhanced Selectivity</title><author>Zhu, Ya-Hui ; Cai, Jing ; Chen, Jian-Xin</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c295t-434c40361e336867d535b18ec7af86f69c0963edc9042387b42dd73a35a190363</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>absorptive bandstop filter (ABSF)</topic><topic>Absorptivity</topic><topic>Band-pass filters</topic><topic>Bandpass filters</topic><topic>Bandstop filters</topic><topic>double-sided parallel-strip lines (DSPSL)</topic><topic>Impedance</topic><topic>Layout</topic><topic>Matched filters</topic><topic>Passband</topic><topic>Power transmission lines</topic><topic>Quasi-reflectionless bandpass filter (BPF)</topic><topic>Resistors</topic><topic>Selectivity</topic><topic>Substrates</topic><topic>transmission zero (TZ)</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Zhu, Ya-Hui</creatorcontrib><creatorcontrib>Cai, Jing</creatorcontrib><creatorcontrib>Chen, Jian-Xin</creatorcontrib><collection>IEEE All-Society Periodicals Package (ASPP) 2005-present</collection><collection>IEEE All-Society Periodicals Package (ASPP) 1998-Present</collection><collection>IEEE Electronic Library (IEL)</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>IEEE transactions on circuits and systems. II, Express briefs</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>Zhu, Ya-Hui</au><au>Cai, Jing</au><au>Chen, Jian-Xin</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Quasi-Reflectionless Double-Sided Parallel-Strip Line Bandpass Filter With Enhanced Selectivity</atitle><jtitle>IEEE transactions on circuits and systems. II, Express briefs</jtitle><stitle>TCSII</stitle><date>2022-02-01</date><risdate>2022</risdate><volume>69</volume><issue>2</issue><spage>339</spage><epage>343</epage><pages>339-343</pages><issn>1549-7747</issn><eissn>1558-3791</eissn><coden>ITCSFK</coden><abstract><![CDATA[A novel quasi-reflectionless bandpass filter (BPF) using double-sided parallel-strip line (DSPSL) is proposed in this brief. It is composed of a BPF and two symmetric absorptive bandstop filters (ABSFs) terminated by a pair of resistors that can dissipate the input untransmitted signal energy. Through detailed analysis, the high characteristic impedance is required for the open-circuited stubs of the ABSFs to enhance the selectivity. This cannot be realized in traditional microstrip designs, but it can be obtained easily by offsetting the DSPSL. Meanwhile, the BPF with T-shaped structure consists of a half-wavelength (<inline-formula> <tex-math notation="LaTeX">\lambda /2 </tex-math></inline-formula>) DSPSL with a centrally-loaded <inline-formula> <tex-math notation="LaTeX">\lambda /2 </tex-math></inline-formula> stub, which answers for generating two transmission zeros (TZs) to achieve better out-of-band suppression. For demonstration, a prototype is designed, fabricated and measured, and the simulated and measured results with good agreement are presented.]]></abstract><cop>New York</cop><pub>IEEE</pub><doi>10.1109/TCSII.2021.3099508</doi><tpages>5</tpages><orcidid>https://orcid.org/0000-0001-9566-3410</orcidid><orcidid>https://orcid.org/0000-0002-8703-5294</orcidid></addata></record> |
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| ispartof | IEEE transactions on circuits and systems. II, Express briefs, 2022-02, Vol.69 (2), p.339-343 |
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| subjects | absorptive bandstop filter (ABSF) Absorptivity Band-pass filters Bandpass filters Bandstop filters double-sided parallel-strip lines (DSPSL) Impedance Layout Matched filters Passband Power transmission lines Quasi-reflectionless bandpass filter (BPF) Resistors Selectivity Substrates transmission zero (TZ) |
| title | Quasi-Reflectionless Double-Sided Parallel-Strip Line Bandpass Filter With Enhanced Selectivity |
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