Compact EBG guides using substrate layered rings

Ouassal, Hassna; Shaker, J.; Hettak, K.; Chaharmir, M.R.; Roy, Langis

doi:10.1109/antem.2016.7550196

Cited by 5 publications

(7 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…The EBG waveguides in air (foam) have disadvantages including the lack of structural robustness and significant radiation losses for narrower width. In this paper, we extend the study that was presented in [5]. The propagation in dielectric-supported ML-UR is investigated and verified in modified versions of the waveguide of [5] for the first time.…”

Section: Introductionmentioning

confidence: 80%

“…In this paper, we extend the study that was presented in [5]. The propagation in dielectric-supported ML-UR is investigated and verified in modified versions of the waveguide of [5] for the first time. The dielectric material is necessary to achieve a rigid structure.…”

Section: Introductionmentioning

confidence: 80%

“…A waveguide was created within the ML-UR slab by introducing a single-layer channel line defect of reduced size rings in order to confine the field to the defect region. Figure 5(a) illustrates the waveguide configuration, which is a variation of the EBG guide that was recently reported in [5]. The structure was composed of three rows (periods) of ML-UR on either side of the channel as opposed to the single row for the structure that was reported in [5].…”

Section: Ebg Slab Waveguidementioning

confidence: 99%

“…Figure 5(a) illustrates the waveguide configuration, which is a variation of the EBG guide that was recently reported in [5]. The structure was composed of three rows (periods) of ML-UR on either side of the channel as opposed to the single row for the structure that was reported in [5]. The dimension of the UR in the defect region was set to 2.8 mm as shown in Figure 5 Dispersion characteristics of the corresponding guided mode for different numbers of rows on the sides of the channel are shown in Figure 6.…”

Section: Ebg Slab Waveguidementioning

confidence: 99%

“…Development of transmission lines using this approach paves the way for its wider application to a wide variety of microwave circuits and components. TE-polarized line defect waveguides (magnetic field is normal to the plane of the waveguide and electric field is in the plane) have been developed in foam (ε r~1 ) [4] and dielectric (ε r = 2.94) [5] media. The EBG waveguides in air (foam) have disadvantages including the lack of structural robustness and significant radiation losses for narrower width.…”

Section: Introductionmentioning

confidence: 99%

See 4 more Smart Citations

Line Defect-Layered EBG Waveguides in Dielectric Substrates

Ouassal

Shaker

Roy

et al. 2018

International Journal of Antennas and Propagation

Self Cite

View full text Add to dashboard Cite

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.

show abstract

Section: Introductionmentioning

confidence: 80%

Section: Introductionmentioning

confidence: 80%

Section: Ebg Slab Waveguidementioning

confidence: 99%

Section: Ebg Slab Waveguidementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 3 more Smart Citations

Line Defect-Layered EBG Waveguides in Dielectric Substrates

Ouassal

Shaker

Roy

et al. 2018

International Journal of Antennas and Propagation

Self Cite

View full text Add to dashboard Cite

show abstract

Multi‐layer EBG slab waveguide based on open square rings

Ouassal¹,

Shaker

Roy

et al. 2017

IET Microwaves, Antennas & Propagation

Self Cite

View full text Add to dashboard Cite

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.

show abstract