Transmission line fundamentals

Zhang, Hanqiao; Krooswyk, Steven; Ou, Jeff

doi:10.1016/b978-0-12-418663-7.00001-0

Cited by 6 publications

(1 citation statement)

References 6 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…A sharp track corner creates shunt capacitance to the ground plane, which degrades insertion loss and increases the capacitance. This phenomenon results in a change in characteristic impedance that involves reflections of signal, particularly in a high-frequency domain [ 48 , 49 ]. Therefore, track corners should be as round as possible with a radius no tighter than the differential pair separation.…”

Section: Process and Architecture Of Bidirectional Sensormentioning

confidence: 99%

Design Rules of Bidirectional Smart Sensor Coating for Condition Monitoring of Bearings

Nguyen

Bernadet

et al. 2023

Polymers

View full text Add to dashboard Cite

This paper reports a novel monitoring technique of bearings’ bidirectional load (axial and radial) based on a smart sensor coating, which is screen printed onto the surface of a cross-shaped steel substrate. To ensure the accuracy and stability of measurement as well as the durability of the printed coating, the developed prototype is built according to design rules commonly used in electronic circuits. The finite element model (FEM) is used to predict the mechanical property of the tested substrate under either unidirectional or bidirectional loads. Regarding the output voltage of the piezoelectric sensor, experimental results are revealed to be well-corelated to the numerical simulation. It is pointed out that the output signal generated from the sensor (electrode) could be particularly affected due to the capacitive parasite coming from the conductive tracks (CTs). Such a phenomenon might be reduced by printing them on the dielectric layer rather than on the piezocomposite layer. The study also investigates a highly anisotropic shape of electrodes (rectangular instead of circle), indicating that the orientation of such electrodes (axial or radial) does affect the output measurement. To sum up, the high performance of a sensor network coating depends not only on the ultimate characteristics of its own materials, but also on its structural design. Such an issue has been rarely reported on in the literature, but is nonetheless crucial to achieving reliable condition monitoring of bearings, especially for multidirectional loads—a key signature of early failure detection.

show abstract

Section: Process and Architecture Of Bidirectional Sensormentioning

confidence: 99%

Design Rules of Bidirectional Smart Sensor Coating for Condition Monitoring of Bearings

Nguyen

Bernadet

et al. 2023

Polymers

View full text Add to dashboard Cite

show abstract

General Issues of Gate-Level Simulation and Optimization of Digital Circuits with Consideration of Destabilizing Factors

Melikyan¹

2018

Simulation and Optimization of Digital Circuits

View full text Add to dashboard Cite

Design of CMOS-compatible metal–insulator–metal metasurfaces via extended equivalent-circuit analysis

Dorodnyy

Koepfli

Lochbaum

et al. 2020

Sci Rep

View full text Add to dashboard Cite

Photonic metasurfaces compatible with large-scale production such as CMOS are of importance because they promise cointegration of electronics with photonics for detection, communication and sensing. The main challenges on the way of designing such metasurfaces are: (1) large variety of possible geometrical shapes of metasurface elements that makes finding the most appropriate shape difficult; (2) poor compatibility of available electronic layer stacks with photonics. In this paper we show how to address both of these challenges utilizing extended equivalent-circuit analysis. In a first step we classify the behavior of different metasurfaces using the equivalent circuit. We discover that metasurfaces that use inverted-dipole resonator type exhibit higher tolerance to dielectric spacer thickness, higher angular stability and have similar resonance quality-factor as other types. In the second step we utilize the equivalent-circuit scheme to efficiently optimize the parameters of inverted-dipole based metasurfaces for a layer stack such as given in a CMOS process. Finally, as an example we demonstrate how an inverted-cross structure can be adapted to a commercial 110 nm CMOS process with Al metal layers. We measured peak absorption above 90% at center wavelength around 4 µm with quality factor of approximately 5 and angular stability larger than 60°.

show abstract

Transmission line fundamentals

Cited by 6 publications

References 6 publications

Design Rules of Bidirectional Smart Sensor Coating for Condition Monitoring of Bearings

Design Rules of Bidirectional Smart Sensor Coating for Condition Monitoring of Bearings

General Issues of Gate-Level Simulation and Optimization of Digital Circuits with Consideration of Destabilizing Factors

Design of CMOS-compatible metal–insulator–metal metasurfaces via extended equivalent-circuit analysis

Contact Info

Product

Resources

About