Line Defect-Layered EBG Waveguides in Dielectric Substrates
A dielectric-based multilayer structure composed of U-shaped rings (ML-UR) is used to develop a class of novel electromagnetic band gap (EBG) slab waveguide. The structure has two band gaps that narrow down as dielectric constant is increased. The EBG slab waveguide is created by embedding a single-...
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| Format: | Article |
| Language: | English |
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Wiley
2018-01-01
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| Series: | International Journal of Antennas and Propagation |
| Online Access: | http://dx.doi.org/10.1155/2018/3469730 |
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| _version_ | 1849305022928519168 |
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| author | Hassna Ouassal Jafar Shaker Langis Roy Khelifa Hettak Reza Chaharmir |
| author_facet | Hassna Ouassal Jafar Shaker Langis Roy Khelifa Hettak Reza Chaharmir |
| author_sort | Hassna Ouassal |
| collection | DOAJ |
| description | A dielectric-based multilayer structure composed of U-shaped rings (ML-UR) is used to develop a class of novel electromagnetic band gap (EBG) slab waveguide. The structure has two band gaps that narrow down as dielectric constant is increased. The EBG slab waveguide is created by embedding a single-layer line defect inside the 3D crystal of the EBG slab guide. Unlike our previously published foam-based EBG structure, the use of dielectric spacer in the EBG waveguides offers significant advantages in terms of overall size, structure reliability, and design flexibility. The waveguide structures reported in this paper are designed to operate at X-band (8–12 GHz) while being fed by coplanar-slotline transitions. Prototypes were fabricated and characterized experimentally. The insertion loss decreases by decreasing the number of full lattices of ML-UR surrounding the channels. The proposed waveguide has potential in microwave components such as directional couplers, phase shifters, and antenna array feeding networks. |
| format | Article |
| id | doaj-art-40e5e3f5a5cf472f8790dd754d2c9192 |
| institution | Kabale University |
| issn | 1687-5869 1687-5877 |
| language | English |
| publishDate | 2018-01-01 |
| publisher | Wiley |
| record_format | Article |
| series | International Journal of Antennas and Propagation |
| spelling | doaj-art-40e5e3f5a5cf472f8790dd754d2c91922025-08-20T03:55:35ZengWileyInternational Journal of Antennas and Propagation1687-58691687-58772018-01-01201810.1155/2018/34697303469730Line Defect-Layered EBG Waveguides in Dielectric SubstratesHassna Ouassal0Jafar Shaker1Langis Roy2Khelifa Hettak3Reza Chaharmir4Department of Electronics, Carleton University, Ottawa, ON, CanadaCommunications Research Centre, Ottawa, ON, CanadaUniversity of Ontario Institute of Technology, Oshawa, ON, CanadaCommunications Research Centre, Ottawa, ON, CanadaCommunications Research Centre, Ottawa, ON, CanadaA dielectric-based multilayer structure composed of U-shaped rings (ML-UR) is used to develop a class of novel electromagnetic band gap (EBG) slab waveguide. The structure has two band gaps that narrow down as dielectric constant is increased. The EBG slab waveguide is created by embedding a single-layer line defect inside the 3D crystal of the EBG slab guide. Unlike our previously published foam-based EBG structure, the use of dielectric spacer in the EBG waveguides offers significant advantages in terms of overall size, structure reliability, and design flexibility. The waveguide structures reported in this paper are designed to operate at X-band (8–12 GHz) while being fed by coplanar-slotline transitions. Prototypes were fabricated and characterized experimentally. The insertion loss decreases by decreasing the number of full lattices of ML-UR surrounding the channels. The proposed waveguide has potential in microwave components such as directional couplers, phase shifters, and antenna array feeding networks.http://dx.doi.org/10.1155/2018/3469730 |
| spellingShingle | Hassna Ouassal Jafar Shaker Langis Roy Khelifa Hettak Reza Chaharmir Line Defect-Layered EBG Waveguides in Dielectric Substrates International Journal of Antennas and Propagation |
| title | Line Defect-Layered EBG Waveguides in Dielectric Substrates |
| title_full | Line Defect-Layered EBG Waveguides in Dielectric Substrates |
| title_fullStr | Line Defect-Layered EBG Waveguides in Dielectric Substrates |
| title_full_unstemmed | Line Defect-Layered EBG Waveguides in Dielectric Substrates |
| title_short | Line Defect-Layered EBG Waveguides in Dielectric Substrates |
| title_sort | line defect layered ebg waveguides in dielectric substrates |
| url | http://dx.doi.org/10.1155/2018/3469730 |
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