A novel frequency‐tunable branch line coupler
This article introduces a novel two‐section frequency‐tunable branch line coupler, which is realized by inserting a narrow band frequency‐tunable phase inverter into a wideband two‐section branch line coupler's middle branch line. Such frequency‐tunable method is different from the conventional...
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| Veröffentlicht in: | International journal of RF and microwave computer-aided engineering 2018-01, Vol.28 (1), p.e21154-n/a |
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| container_title | International journal of RF and microwave computer-aided engineering |
| container_volume | 28 |
| creator | Liao, Zhen‐Heng Zhang, Xu‐Chun Yang, Xiao |
| description | This article introduces a novel two‐section frequency‐tunable branch line coupler, which is realized by inserting a narrow band frequency‐tunable phase inverter into a wideband two‐section branch line coupler's middle branch line. Such frequency‐tunable method is different from the conventional one. Furthermore, in this bias feeding design, there are only one control voltage, two varactors, two resistors, and two capacitors are utilized. The measured results show that the operation frequency of the branch line coupler can be tuned from 0.73 to 1.33 GHz, and the return loss is >20 dB, the isolation >20 dB, the amplitude imbalances |
| doi_str_mv | 10.1002/mmce.21154 |
| format | Article |
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Such frequency‐tunable method is different from the conventional one. Furthermore, in this bias feeding design, there are only one control voltage, two varactors, two resistors, and two capacitors are utilized. The measured results show that the operation frequency of the branch line coupler can be tuned from 0.73 to 1.33 GHz, and the return loss is >20 dB, the isolation >20 dB, the amplitude imbalances <1 dB, and the phase imbalances is <2°. 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Through the comparison, the measured results basically conform to the simulated results in this design.</description><subject>branch line coupler</subject><subject>Broadband</subject><subject>Brownfields</subject><subject>frequency‐tunable</subject><subject>phase inverter</subject><subject>Resistors</subject><subject>resonant frequency</subject><subject>Varactor diodes</subject><issn>1096-4290</issn><issn>1099-047X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2018</creationdate><recordtype>article</recordtype><recordid>eNp9kM1Kw0AQgBdRsEYvPkHAm5B2J7PJbo4l1B9o8aLgbdlsJpiSPzeN0puP4DP6JKaNZw_DDMw3P3yMXQOfA-fhoq4tzUOASJywGfAkCbiQr6fHOg5EmPBzdtH3W87HXogztlj6TftBlV84eh-osfufr-_d0JisIj9zprFvflU25Nt26Cpyl-ysMFVPV3_ZYy93q-f0IVg_3T-my3VgEaUIijzCxJosklBkcW5EaASS5ICAolC5VUaZ3OSxUkpEgIhAGdpcRjYmsgo9djPt7Vw7_tXv9LYdXDOe1JDIGAXKMTx2O1HWtX3vqNCdK2vj9hq4PgjRByH6KGSEYYI_y4r2_5B6s0lX08wvooVjCw</recordid><startdate>201801</startdate><enddate>201801</enddate><creator>Liao, Zhen‐Heng</creator><creator>Zhang, Xu‐Chun</creator><creator>Yang, Xiao</creator><general>Hindawi Limited</general><scope>AAYXX</scope><scope>CITATION</scope><scope>7SC</scope><scope>7SP</scope><scope>8FD</scope><scope>JQ2</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><orcidid>https://orcid.org/0000-0002-4865-4922</orcidid><orcidid>https://orcid.org/0000-0001-7095-6276</orcidid><orcidid>https://orcid.org/0000-0003-0439-4468</orcidid></search><sort><creationdate>201801</creationdate><title>A novel frequency‐tunable branch line coupler</title><author>Liao, Zhen‐Heng ; Zhang, Xu‐Chun ; Yang, Xiao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c3374-fd539cab571fb6da42a43e7013134f8dc8a8adad68884513331eb3cd75c6eec83</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2018</creationdate><topic>branch line coupler</topic><topic>Broadband</topic><topic>Brownfields</topic><topic>frequency‐tunable</topic><topic>phase inverter</topic><topic>Resistors</topic><topic>resonant frequency</topic><topic>Varactor diodes</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Liao, Zhen‐Heng</creatorcontrib><creatorcontrib>Zhang, Xu‐Chun</creatorcontrib><creatorcontrib>Yang, Xiao</creatorcontrib><collection>CrossRef</collection><collection>Computer and Information Systems Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><jtitle>International journal of RF and microwave computer-aided engineering</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Liao, Zhen‐Heng</au><au>Zhang, Xu‐Chun</au><au>Yang, Xiao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>A novel frequency‐tunable branch line coupler</atitle><jtitle>International journal of RF and microwave computer-aided engineering</jtitle><date>2018-01</date><risdate>2018</risdate><volume>28</volume><issue>1</issue><spage>e21154</spage><epage>n/a</epage><pages>e21154-n/a</pages><issn>1096-4290</issn><eissn>1099-047X</eissn><abstract>This article introduces a novel two‐section frequency‐tunable branch line coupler, which is realized by inserting a narrow band frequency‐tunable phase inverter into a wideband two‐section branch line coupler's middle branch line. 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| ispartof | International journal of RF and microwave computer-aided engineering, 2018-01, Vol.28 (1), p.e21154-n/a |
| issn | 1096-4290 1099-047X |
| language | eng |
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| source | Wiley Online Library Journals Frontfile Complete |
| subjects | branch line coupler Broadband Brownfields frequency‐tunable phase inverter Resistors resonant frequency Varactor diodes |
| title | A novel frequency‐tunable branch line coupler |
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