Guided modes of a line-defect EBG slab waveguide in a 3-D square lattice of metallic open square rings

A novel guiding channel that is electromagnetic bandgap (EBG) based is presented. The structure is formed in a two‐dimensional slab of a square lattice of multi‐layer metallic open square rings. Dispersion diagrams and eigenfield distributions of the in‐gap‐guided mode are shown. The channel guide offers many advantages such as easy and flexible design for band‐select applications while retaining its electromagnetic properties, simple fabrication (no drilling through the substrate) and compatibility with integrated circuit technology. Two EBG waveguide configurations with a feeding structure on a circuit board (PCB) were designed, fabricated and tested. It is shown experimentally that the length of the EBG guide does not impact the insertion loss significantly, which establishes low insertion loss of the guide.

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“…3 shows dispersion curves of such a waveguide. More detailed presentation of this subject can be found in [20].…”

Section: Channel Waveguide Structurementioning

confidence: 99%

Multi‐layer EBG slab waveguide based on open square rings

Ouassal¹,

Shaker

Roy

et al. 2017

IET Microwaves, Antennas & Propagation

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“…This is due to the lack of vertical confinement in the layered waveguide [2]. The choice of seven-ring structure ensures the minimum insertion losses with reasonable manufacturing tolerances.…”

Section: Model For Deembeddingmentioning

confidence: 99%

“…Electromagnetic band gap (EBG) structures comprised of multilayers of U-shaped rings (ML-UR), shown in Figure 1(a), were first introduced in [1,2] as an alternative EBG structure for novel microwave designs. This construction is of great interest due to its relatively simple fabrication technology (no via holes required), light weight, and compatibility with planar circuits for integration of active components.…”

Section: Introductionmentioning

confidence: 99%

Line Defect-Layered EBG Waveguides in Dielectric Substrates

Ouassal

Shaker

Roy

et al. 2018

International Journal of Antennas and Propagation

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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.

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“…Finally, conclusions are drawn in Section 3.9 of this chapter. Some material of this chapter can be found in [57][58]…”

Section: This Chapter Deals With the Implementation Of Electromagnetimentioning

confidence: 99%

“… Study of novel EBG-OSRs fundamental behaviors (i.e., dispersion characteristics, eigen field distributions, band gaps, guiding mechanisms) with design guides. Some material was presented in [57][58] and the rest of the sudy will be submitted for publication.…”

Section: Contributionsmentioning

confidence: 99%

Investigation of Electromagnetic Band-Gap Structures Using Metallic Open Square Rings for Microwave Applications

Ouassal¹

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Guided modes of a line-defect EBG slab waveguide in a 3-D square lattice of metallic open square rings

Cited by 6 publications

References 5 publications

Multi‐layer EBG slab waveguide based on open square rings

Multi‐layer EBG slab waveguide based on open square rings

Line Defect-Layered EBG Waveguides in Dielectric Substrates

Investigation of Electromagnetic Band-Gap Structures Using Metallic Open Square Rings for Microwave Applications

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