Research Status and Design Method of Slow Wave Transmission Lines

Zong, Bin Feng; Zeng, Hui Yong; Wu, Fan; Geng, Li

doi:10.1016/j.procs.2020.02.075

Cited by 2 publications

(3 citation statements)

References 23 publications

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“…The leakage constant or attenuation constant of the LWA can be calculated using Equation ( 7). 8,26 The normalized leakage constant (α/k o ) curve is shown in Figure 14 which reveals that α is significantly low in the complete scanning bandwidth of the LWA. This leads to higher directivity in the complete scanning range.…”

Section: Design and Analysis Of Crlh Sw-siw Lwamentioning

confidence: 99%

“…To miniaturize the SIW structure several solutions have been proposed 23–25 . One of the prominent solutions is to implement a slow‐wave (SW) structure 26 . Hasegawa et al presented an SW structure by reducing the phase velocity of the electromagnetic waves 27 .…”

Section: Introductionmentioning

confidence: 99%

“…[23][24][25] One of the prominent solutions is to implement a slow-wave (SW) structure. 26 Hasegawa et al presented an SW structure by reducing the phase velocity of the electromagnetic waves. 27 In Reference 28, a slow-wave-SIW (SW-SIW) structure is designed by Martin et al by inserting metalized blind via inside SIW.…”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

A miniaturized mm‐wave leaky wave antenna based on CRLH slow‐wave SIW for symmetric wide angle beam scanning

Agarwal

Das

Yadava

2022

Int J RF Mic Comp-Aid Eng

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In this article, a novel miniaturized wide beam scanning range multi-layered mm-wave leaky-wave antenna (LWA) based on slow-wave (SW) substrateintegrated waveguide (SIW) is presented. The SW effect is introduced by loading conventional SIW with internal metalized blind vias connected to the bottom ground plane. The SW effect in the SIW structure causes the separation of the electric and magnetic field components in the structure which leads to the reduction in lateral dimensions of the proposed topology by 35% as compared to the conventional SIW. The proposed LWA exhibits a miniaturized volume of 6.6 Â 0.41 Â .07 λ 3 . The radiation in the proposed design is realized by introducing U-shaped slots in the unit cell of the SW-SIW structure. Experimental results show that the proposed SW-SIW LWA achieves almost symmetric and continuous beam scanning from À48 to 52 including the broadside direction within the impedance bandwidth of 23.7-28.1 GHz. The proposed antenna achieves a peak gain of 14.52 dBi and the half-power beamwidth of LWA is as low as 10 . The proposed antenna also exhibits radiation efficiency of above 90% within the bandwidth. The proposed design can be a potential candidate for mm-wave frequency beam scanning applications.

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Section: Design and Analysis Of Crlh Sw-siw Lwamentioning

confidence: 99%