Synthesizing Microstrip Branch-Line Couplers With Predetermined Compact Size and Bandwidth
A new method for designing the microstrip branch- line couplers with predetermined compact size and bandwidth is proposed in this paper. With the proposed approach, the size of the quarter-wavelength transmission line in the branch-line coupler can be reduced greatly. In addition, the proposed coupl...
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| Veröffentlicht in: | IEEE transactions on microwave theory and techniques 2007-09, Vol.55 (9), p.1926-1934 |
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| container_end_page | 1934 |
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| container_issue | 9 |
| container_start_page | 1926 |
| container_title | IEEE transactions on microwave theory and techniques |
| container_volume | 55 |
| creator | TANG, Ching-Wen CHEN, Ming-Guang |
| description | A new method for designing the microstrip branch- line couplers with predetermined compact size and bandwidth is proposed in this paper. With the proposed approach, the size of the quarter-wavelength transmission line in the branch-line coupler can be reduced greatly. In addition, the proposed couplers can be easily fabricated on the printed circuit board without any lumped element. A chart concludes the relationship between bandwidth and size reduction rate. It shows that open stubs with low impedance perform better than those with high impedance; moreover, the more open stubs with low impedance utilized, the broader the bandwidth will be. Furthermore, the measured frequency responses show good agreement with the theoretical results. |
| doi_str_mv | 10.1109/TMTT.2007.904331 |
| format | Article |
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With the proposed approach, the size of the quarter-wavelength transmission line in the branch-line coupler can be reduced greatly. In addition, the proposed couplers can be easily fabricated on the printed circuit board without any lumped element. A chart concludes the relationship between bandwidth and size reduction rate. It shows that open stubs with low impedance perform better than those with high impedance; moreover, the more open stubs with low impedance utilized, the broader the bandwidth will be. 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Passive components, printed wiring boards, connectics ; Electronics ; Exact sciences and technology ; High impedance ; Impedance ; Microstrip ; Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits ; Microwaves ; Power transmission lines ; Printed circuits ; Size reduction ; Transmission line measurements ; Transmission line theory ; Transmission lines</subject><ispartof>IEEE transactions on microwave theory and techniques, 2007-09, Vol.55 (9), p.1926-1934</ispartof><rights>2007 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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With the proposed approach, the size of the quarter-wavelength transmission line in the branch-line coupler can be reduced greatly. In addition, the proposed couplers can be easily fabricated on the printed circuit board without any lumped element. A chart concludes the relationship between bandwidth and size reduction rate. It shows that open stubs with low impedance perform better than those with high impedance; moreover, the more open stubs with low impedance utilized, the broader the bandwidth will be. Furthermore, the measured frequency responses show good agreement with the theoretical results.</description><subject>Applied sciences</subject><subject>Bandwidth</subject><subject>Branch-line coupler</subject><subject>Circuit properties</subject><subject>Couplers</subject><subject>Design methodology</subject><subject>Distributed parameter circuits</subject><subject>Electric, optical and optoelectronic circuits</subject><subject>Electronic equipment and fabrication. Passive components, printed wiring boards, connectics</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>High impedance</subject><subject>Impedance</subject><subject>Microstrip</subject><subject>Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits</subject><subject>Microwaves</subject><subject>Power transmission lines</subject><subject>Printed circuits</subject><subject>Size reduction</subject><subject>Transmission line measurements</subject><subject>Transmission line theory</subject><subject>Transmission lines</subject><issn>0018-9480</issn><issn>1557-9670</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kUtL7EAQhRtRcHzsBTfhwtVVxqp0J-leXgdfMKJgQHDTdDo1Tksmid0ZRH-9CSNXcOGmiuJ8daDqMHaEMEUEdVbcFsU0AcinCgTnuMUmmKZ5rLIcttkEAGWshIRdthfCyzCKFOSEPT28N_2SgvtwzXN066xvQ-9dF51709hlPHcNRbN23dXkQ_To-mV076minvxqkKpBW3XG9tGD-6DINFV0PpQ3V_XLA7azMHWgw6--z4rLi2J2Hc_vrm5m_-ax5ZL3sbSYciFTrsqShMmJG0qMyI2kSgEmhJmirLRkQaHhJZaSI69UIhbcVjnfZ6cb2863r2sKvV65YKmuTUPtOmgpIcsyEGogT34luUg5l4AD-OcH-NKufTMcoWUmUECiRjfYQOPLgqeF7rxbGf-uEfQYiR4j0WMkehPJsPL3y9cEa-rF-GIXvvcUZJjCeNLxhnNE9F8WiZIJ5vwTF7mUZw</recordid><startdate>20070901</startdate><enddate>20070901</enddate><creator>TANG, Ching-Wen</creator><creator>CHEN, Ming-Guang</creator><general>IEEE</general><general>Institute of Electrical and Electronics Engineers</general><general>The Institute of Electrical and Electronics Engineers, Inc. (IEEE)</general><scope>97E</scope><scope>RIA</scope><scope>RIE</scope><scope>IQODW</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7SP</scope><scope>8FD</scope><scope>L7M</scope><scope>F28</scope><scope>FR3</scope></search><sort><creationdate>20070901</creationdate><title>Synthesizing Microstrip Branch-Line Couplers With Predetermined Compact Size and Bandwidth</title><author>TANG, Ching-Wen ; CHEN, Ming-Guang</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c383t-8c15348539bbe4a7e3ae2a47a8ed9012e169e6bcec091a3b1b8313d924f3cd73</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Applied sciences</topic><topic>Bandwidth</topic><topic>Branch-line coupler</topic><topic>Circuit properties</topic><topic>Couplers</topic><topic>Design methodology</topic><topic>Distributed parameter circuits</topic><topic>Electric, optical and optoelectronic circuits</topic><topic>Electronic equipment and fabrication. Passive components, printed wiring boards, connectics</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>High impedance</topic><topic>Impedance</topic><topic>Microstrip</topic><topic>Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits</topic><topic>Microwaves</topic><topic>Power transmission lines</topic><topic>Printed circuits</topic><topic>Size reduction</topic><topic>Transmission line measurements</topic><topic>Transmission line theory</topic><topic>Transmission lines</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>TANG, Ching-Wen</creatorcontrib><creatorcontrib>CHEN, Ming-Guang</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>Pascal-Francis</collection><collection>CrossRef</collection><collection>Electronics & Communications Abstracts</collection><collection>Technology Research Database</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><jtitle>IEEE transactions on microwave theory and techniques</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TANG, Ching-Wen</au><au>CHEN, Ming-Guang</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Synthesizing Microstrip Branch-Line Couplers With Predetermined Compact Size and Bandwidth</atitle><jtitle>IEEE transactions on microwave theory and techniques</jtitle><stitle>TMTT</stitle><date>2007-09-01</date><risdate>2007</risdate><volume>55</volume><issue>9</issue><spage>1926</spage><epage>1934</epage><pages>1926-1934</pages><issn>0018-9480</issn><eissn>1557-9670</eissn><coden>IETMAB</coden><abstract>A new method for designing the microstrip branch- line couplers with predetermined compact size and bandwidth is proposed in this paper. With the proposed approach, the size of the quarter-wavelength transmission line in the branch-line coupler can be reduced greatly. In addition, the proposed couplers can be easily fabricated on the printed circuit board without any lumped element. A chart concludes the relationship between bandwidth and size reduction rate. It shows that open stubs with low impedance perform better than those with high impedance; moreover, the more open stubs with low impedance utilized, the broader the bandwidth will be. Furthermore, the measured frequency responses show good agreement with the theoretical results.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TMTT.2007.904331</doi><tpages>9</tpages></addata></record> |
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| ispartof | IEEE transactions on microwave theory and techniques, 2007-09, Vol.55 (9), p.1926-1934 |
| issn | 0018-9480 1557-9670 |
| language | eng |
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| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Bandwidth Branch-line coupler Circuit properties Couplers Design methodology Distributed parameter circuits Electric, optical and optoelectronic circuits Electronic equipment and fabrication. Passive components, printed wiring boards, connectics Electronics Exact sciences and technology High impedance Impedance Microstrip Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Microwaves Power transmission lines Printed circuits Size reduction Transmission line measurements Transmission line theory Transmission lines |
| title | Synthesizing Microstrip Branch-Line Couplers With Predetermined Compact Size and Bandwidth |
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