An Ultra‐Compact Spoof Surface Plasmon Polariton Transmission Line and Its Signal Integrity Analysis

You, Zi Hua; Gao, Xin; Cheng, Zhang Wen; Wang, Hai Lin; Feng, Hui; Cui, Tie Jun

doi:10.1002/adem.202200621

Cited by 4 publications

(1 citation statement)

References 38 publications

(55 reference statements)

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“…The electromagnetic modes sustained on such subwavelength periodic metal structures are the spoof surface plasmon polaritons [17][18][19][20][21], which can find interesting applications. For example, a scheme of ultra-compact spoof surface plasmon polaritons transmission line, where a meander line was compressed into a unit cell of periodic microstrip line, has been suggested for the field of signal integrity [24].…”

Section: Introductionmentioning

confidence: 99%

Time domain response of corrugated transmission lines

Wu,

Wang,

Peng

et al. 2023

IET Microwaves Antenna & Prop

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In order to employ periodic corrugated microstrip lines for reducing or suppressing electromagnetic interference in high‐speed or high‐frequency circuits, a precise method is necessary to calculate and measure the characteristic impedance of periodic microstrip lines. The equation for characteristic impedance (depending on frequency) of lossless periodic microstrip lines was obtained based on the transfer matrix method. A time domain pulse was used to measure the instantaneous impedance of conventional microstrip lines, and when the instantaneous impedance does not change with distance, it can be identified as the characteristic impedance of microstrip lines. However, when the time‐domain pulses are employed to measure the instantaneous impedance of periodic microstrip lines, rapid oscillations occur with distance. Therefore, a standard for spacing between adjacent grooves in the microstrip line can be suggested by analysing the interaction between the time‐domain pulses and the microstrip line grooves. Once such a standard is satisfied, many grooves etched along the microstrip line would no longer be distinguished by the time‐domain pulses. Such a principle and method can be used to determine the instantaneous impedance for the microstrip lines that have periodic grooves. On the other hand, when several periodic structures with different lattice constants coexist on a microstrip line, they can also be distinguished via the instantaneous impedance. A time domain reflectometer was used for measuring the instantaneous impedance of periodic microstrip lines, and the measured results are in agreement with the theoretical analysis.

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