Miniaturized Dual-Band Hybrid Couplers With Arbitrary Power Division Ratios
Branch-line and rat-race couplers are designed to have dual-band operation with arbitrary power division ratios. An elementary two-port is proposed to imitate the 90 deg section at the two designated frequencies with different characteristic impedances. The two-port consists of a stepped-impedance s...
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| Veröffentlicht in: | IEEE transactions on microwave theory and techniques 2009-01, Vol.57 (1), p.149-156 |
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| creator | HSU, Ching-Luh KUO, Jen-Tsai CHANG, Chin-Wei |
| description | Branch-line and rat-race couplers are designed to have dual-band operation with arbitrary power division ratios. An elementary two-port is proposed to imitate the 90 deg section at the two designated frequencies with different characteristic impedances. The two-port consists of a stepped-impedance section with open stubs attached to its two ends, and its circuit parameters are determined by the transmission line theory. The use of the stepped-impedance sections also leads to circuit miniaturization. By the standard microstrip technology, investigated also includes the realizable power division ratios and circuit bandwidths in the two bands, the upper limit of the ratio of the two designated frequencies and the miniaturization factor of the proposed circuit. Hybrid couplers operating at 2.45/5.2 GHz with various power division ratios are designed, fabricated and tested. Experiment results are compared with the theory and simulation. |
| doi_str_mv | 10.1109/TMTT.2008.2009036 |
| format | Article |
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An elementary two-port is proposed to imitate the 90 deg section at the two designated frequencies with different characteristic impedances. The two-port consists of a stepped-impedance section with open stubs attached to its two ends, and its circuit parameters are determined by the transmission line theory. The use of the stepped-impedance sections also leads to circuit miniaturization. By the standard microstrip technology, investigated also includes the realizable power division ratios and circuit bandwidths in the two bands, the upper limit of the ratio of the two designated frequencies and the miniaturization factor of the proposed circuit. Hybrid couplers operating at 2.45/5.2 GHz with various power division ratios are designed, fabricated and tested. Experiment results are compared with the theory and simulation.</description><identifier>ISSN: 0018-9480</identifier><identifier>EISSN: 1557-9670</identifier><identifier>DOI: 10.1109/TMTT.2008.2009036</identifier><identifier>CODEN: IETMAB</identifier><language>eng</language><publisher>New York, NY: IEEE</publisher><subject>Applied sciences ; Bands ; Branch-line coupler ; Circuit design ; Circuit properties ; Circuits ; Couplers ; Division ; Dual band ; Electric, optical and optoelectronic circuits ; Electronics ; Exact sciences and technology ; Impedance ; Insertion loss ; Microstrip ; Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits ; Microwaves ; Miniaturization ; Power transmission lines ; Radio frequency ; rat-race coupler ; Simulation ; stepped impedance ; Transmission line theory ; Wireless LAN</subject><ispartof>IEEE transactions on microwave theory and techniques, 2009-01, Vol.57 (1), p.149-156</ispartof><rights>2009 INIST-CNRS</rights><rights>Copyright The Institute of Electrical and Electronics Engineers, Inc. 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An elementary two-port is proposed to imitate the 90 deg section at the two designated frequencies with different characteristic impedances. The two-port consists of a stepped-impedance section with open stubs attached to its two ends, and its circuit parameters are determined by the transmission line theory. The use of the stepped-impedance sections also leads to circuit miniaturization. By the standard microstrip technology, investigated also includes the realizable power division ratios and circuit bandwidths in the two bands, the upper limit of the ratio of the two designated frequencies and the miniaturization factor of the proposed circuit. Hybrid couplers operating at 2.45/5.2 GHz with various power division ratios are designed, fabricated and tested. Experiment results are compared with the theory and simulation.</description><subject>Applied sciences</subject><subject>Bands</subject><subject>Branch-line coupler</subject><subject>Circuit design</subject><subject>Circuit properties</subject><subject>Circuits</subject><subject>Couplers</subject><subject>Division</subject><subject>Dual band</subject><subject>Electric, optical and optoelectronic circuits</subject><subject>Electronics</subject><subject>Exact sciences and technology</subject><subject>Impedance</subject><subject>Insertion loss</subject><subject>Microstrip</subject><subject>Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits</subject><subject>Microwaves</subject><subject>Miniaturization</subject><subject>Power transmission lines</subject><subject>Radio frequency</subject><subject>rat-race coupler</subject><subject>Simulation</subject><subject>stepped impedance</subject><subject>Transmission line theory</subject><subject>Wireless LAN</subject><issn>0018-9480</issn><issn>1557-9670</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2009</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kc9PwyAUx4nRxDn9A4yXxkQ9dUKhFI5z_oxbNKaJR0K7R2Tp2gmtZv710mzZwYMHIDw-78t774vQKcEjQrC8zmd5PkowFv0mMeV7aEDSNIslz_A-GmBMRCyZwIfoyPtFuLIUiwF6ntna6rZz9gfm0W2nq_hG1_PocV04O48mTbeqwPno3bYf0dgVtnXaraPX5htcdGu_rLdNHb3p1jb-GB0YXXk42Z5DlN_f5ZPHePry8DQZT-OSirSNjclkxoiQwLEuDBRSUg1YlEwT4IYWCRHMAJRFwWSIcZYaMy8MoQmYjNMhutrIrlzz2YFv1dL6EqpK19B0XgkuBaM0rCG6_JekYQY8ZUkAz_-Ai6ZzdWhCiZTLJKG0_5dsoNI13jswauXsMkxDEax6E1RvgupNUFsTQs7FVlj7UlfG6bq0fpeYEJyEtvpKzzacBYDdM8uCLE_pL0rdj64</recordid><startdate>200901</startdate><enddate>200901</enddate><creator>HSU, Ching-Luh</creator><creator>KUO, Jen-Tsai</creator><creator>CHANG, Chin-Wei</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>200901</creationdate><title>Miniaturized Dual-Band Hybrid Couplers With Arbitrary Power Division Ratios</title><author>HSU, Ching-Luh ; KUO, Jen-Tsai ; CHANG, Chin-Wei</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c385t-ff7974189e60abfeb993ae08c4a1e6f3b2184feecbb494a1645ffdbf132ef763</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2009</creationdate><topic>Applied sciences</topic><topic>Bands</topic><topic>Branch-line coupler</topic><topic>Circuit design</topic><topic>Circuit properties</topic><topic>Circuits</topic><topic>Couplers</topic><topic>Division</topic><topic>Dual band</topic><topic>Electric, optical and optoelectronic circuits</topic><topic>Electronics</topic><topic>Exact sciences and technology</topic><topic>Impedance</topic><topic>Insertion loss</topic><topic>Microstrip</topic><topic>Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits</topic><topic>Microwaves</topic><topic>Miniaturization</topic><topic>Power transmission lines</topic><topic>Radio frequency</topic><topic>rat-race coupler</topic><topic>Simulation</topic><topic>stepped impedance</topic><topic>Transmission line theory</topic><topic>Wireless LAN</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>HSU, Ching-Luh</creatorcontrib><creatorcontrib>KUO, Jen-Tsai</creatorcontrib><creatorcontrib>CHANG, Chin-Wei</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>HSU, Ching-Luh</au><au>KUO, Jen-Tsai</au><au>CHANG, Chin-Wei</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Miniaturized Dual-Band Hybrid Couplers With Arbitrary Power Division Ratios</atitle><jtitle>IEEE transactions on microwave theory and techniques</jtitle><stitle>TMTT</stitle><date>2009-01</date><risdate>2009</risdate><volume>57</volume><issue>1</issue><spage>149</spage><epage>156</epage><pages>149-156</pages><issn>0018-9480</issn><eissn>1557-9670</eissn><coden>IETMAB</coden><abstract>Branch-line and rat-race couplers are designed to have dual-band operation with arbitrary power division ratios. An elementary two-port is proposed to imitate the 90 deg section at the two designated frequencies with different characteristic impedances. The two-port consists of a stepped-impedance section with open stubs attached to its two ends, and its circuit parameters are determined by the transmission line theory. The use of the stepped-impedance sections also leads to circuit miniaturization. By the standard microstrip technology, investigated also includes the realizable power division ratios and circuit bandwidths in the two bands, the upper limit of the ratio of the two designated frequencies and the miniaturization factor of the proposed circuit. Hybrid couplers operating at 2.45/5.2 GHz with various power division ratios are designed, fabricated and tested. Experiment results are compared with the theory and simulation.</abstract><cop>New York, NY</cop><pub>IEEE</pub><doi>10.1109/TMTT.2008.2009036</doi><tpages>8</tpages></addata></record> |
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| identifier | ISSN: 0018-9480 |
| ispartof | IEEE transactions on microwave theory and techniques, 2009-01, Vol.57 (1), p.149-156 |
| issn | 0018-9480 1557-9670 |
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| source | IEEE Electronic Library (IEL) |
| subjects | Applied sciences Bands Branch-line coupler Circuit design Circuit properties Circuits Couplers Division Dual band Electric, optical and optoelectronic circuits Electronics Exact sciences and technology Impedance Insertion loss Microstrip Microwave circuits, microwave integrated circuits, microwave transmission lines, submillimeter wave circuits Microwaves Miniaturization Power transmission lines Radio frequency rat-race coupler Simulation stepped impedance Transmission line theory Wireless LAN |
| title | Miniaturized Dual-Band Hybrid Couplers With Arbitrary Power Division Ratios |
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