Theoretical considerations in the optimization of surface waves on a planar structure
The problem of optimum excitation of surface waves on a grounded dielectric slab by means of slots in the ground plane is considered. By adopting a two-dimensional (2-D) model, analysis lead to closed forms for the power launched as surface waves and power leaked as radiation. Input admittance of a...
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| Veröffentlicht in: | IEEE transactions on antennas and propagation 2004-08, Vol.52 (8), p.2057-2063 |
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| container_issue | 8 |
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| container_title | IEEE transactions on antennas and propagation |
| container_volume | 52 |
| creator | Mahmoud, S.F. Antar, Y.M.M. Hammad, H.F. Freundorfer, A.P. |
| description | The problem of optimum excitation of surface waves on a grounded dielectric slab by means of slots in the ground plane is considered. By adopting a two-dimensional (2-D) model, analysis lead to closed forms for the power launched as surface waves and power leaked as radiation. Input admittance of a single slot source and mutual admittance between two slots are derived and utilized to design a three element Yagi array of slots to achieve a prescribed ratio of forward to backward surface wave power. As a development of the 2-D model, we allow finite extent of slot excitation by assuming a Gaussian E-field distribution across the slot. The effect of the Gaussian width on the excited surface wave power is studied. The analysis is relevant to the study of surface waves on printed circuits. Specifically, it applies to the implementation of power combiners based on quasioptical slab beam that have been recently introduced in the literature for use in the millimeter wave band. |
| doi_str_mv | 10.1109/TAP.2004.832498 |
| format | Article |
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(IEEE) 2004</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c349t-5d57ef60530bca302b6e871dfb3cfaea59d34267a32fe2868375ac1d093244863</citedby><cites>FETCH-LOGICAL-c349t-5d57ef60530bca302b6e871dfb3cfaea59d34267a32fe2868375ac1d093244863</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://ieeexplore.ieee.org/document/1321337$$EHTML$$P50$$Gieee$$H</linktohtml><link.rule.ids>314,776,780,792,27903,27904,54737</link.rule.ids><linktorsrc>$$Uhttps://ieeexplore.ieee.org/document/1321337$$EView_record_in_IEEE$$FView_record_in_$$GIEEE</linktorsrc></links><search><creatorcontrib>Mahmoud, S.F.</creatorcontrib><creatorcontrib>Antar, Y.M.M.</creatorcontrib><creatorcontrib>Hammad, H.F.</creatorcontrib><creatorcontrib>Freundorfer, A.P.</creatorcontrib><title>Theoretical considerations in the optimization of surface waves on a planar structure</title><title>IEEE transactions on antennas and propagation</title><addtitle>TAP</addtitle><description>The problem of optimum excitation of surface waves on a grounded dielectric slab by means of slots in the ground plane is considered. By adopting a two-dimensional (2-D) model, analysis lead to closed forms for the power launched as surface waves and power leaked as radiation. Input admittance of a single slot source and mutual admittance between two slots are derived and utilized to design a three element Yagi array of slots to achieve a prescribed ratio of forward to backward surface wave power. As a development of the 2-D model, we allow finite extent of slot excitation by assuming a Gaussian E-field distribution across the slot. The effect of the Gaussian width on the excited surface wave power is studied. The analysis is relevant to the study of surface waves on printed circuits. Specifically, it applies to the implementation of power combiners based on quasioptical slab beam that have been recently introduced in the literature for use in the millimeter wave band.</description><subject>Admittance</subject><subject>Coplanar waveguides</subject><subject>Dielectrics</subject><subject>Electrical impedance</subject><subject>Excitation</subject><subject>Gaussian</subject><subject>Mathematical analysis</subject><subject>Military computing</subject><subject>Optimization</subject><subject>Power combiners</subject><subject>Printed circuits</subject><subject>Slabs</subject><subject>Surface waves</subject><subject>Two dimensional displays</subject><subject>Wave power</subject><subject>Yagi-Uda antennas</subject><issn>0018-926X</issn><issn>1558-2221</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2004</creationdate><recordtype>article</recordtype><sourceid>RIE</sourceid><recordid>eNp9kUtLAzEUhYMoWKtrF26CC11Nm8dMJlmW4gsEXbTgLqSZG5oynanJjKK_3tQRBBeu7oPvHO7lIHROyYRSoqaL2fOEEZJPJGe5kgdoRItCZowxeohGhFCZKSZejtFJjJs05jLPR2i5WEMboPPW1Ni2TfQVBNP51GHf4G4NuN11fus_v5e4dTj2wRkL-N28QcRpZ_CuNo0JOHaht10f4BQdOVNHOPupY7S8vVnM77PHp7uH-ewxszxXXVZURQlOkIKTlTWcsJUAWdLKrbh1BkyhKp4zURrOHDApJC8LY2lFVHoxl4KP0fXguwvtaw-x01sfLdTpHGj7qBWhQtCSkERe_UsmdyqKkiXw8g-4afvQpC-0YkSWSjGVoOkA2dDGGMDpXfBbEz40JXqfhk5p6H0aekgjKS4GhQeAX5ozynnJvwCvrIW4</recordid><startdate>20040801</startdate><enddate>20040801</enddate><creator>Mahmoud, S.F.</creator><creator>Antar, Y.M.M.</creator><creator>Hammad, H.F.</creator><creator>Freundorfer, A.P.</creator><general>IEEE</general><general>The Institute of Electrical and Electronics Engineers, Inc. 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| subjects | Admittance Coplanar waveguides Dielectrics Electrical impedance Excitation Gaussian Mathematical analysis Military computing Optimization Power combiners Printed circuits Slabs Surface waves Two dimensional displays Wave power Yagi-Uda antennas |
| title | Theoretical considerations in the optimization of surface waves on a planar structure |
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