Towards a PCB production floor metric for go/no go testing of lossy high speed transmission lines

Abstract The design, manufacturing and DC and microwave characterization of high-power Schottky barrier InAlAs/InGaAs back-illuminated mesa structure photodiodes are presented. The photodiodes with 10 and 15 μm mesa diameters operate at ≥40 and 28 GHz, respectively, have the output RF power as high as 58 mW at a frequency of 20 GHz, the DC responsivity of up to 1.08 A/W depending on the absorbing layer thickness, and a photodiode dark current as low as 0.04 nA. We show that these photodiodes provide an advantage in the amplitude-to-phase conversion factor which makes them suitable for use in high-speed analog transmission lines with stringent requirements for phase noise.

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Economic Benefit and Improve of Stability in the Power System through the Ultra-High Speed Fault Clearing in Transmission Lines

2018 IEEE XXV International Conference on Electronics, Electrical Engineering and Computing (INTERCON) ◽

10.1109/intercon.2018.8526425 ◽

2018 ◽

Author(s):

Willy Estrada Vargas ◽

Juan C. Quispe H.

Keyword(s):

Power System ◽

Transmission Lines ◽

Economic Benefit ◽

High Speed ◽

Ultra High Speed

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The Hardware Design of Measurement System of Transmission Lines Based on Wireless Communication

Advanced Materials Research ◽

10.4028/www.scientific.net/amr.1092-1093.366 ◽

2015 ◽

Vol 1092-1093 ◽

pp. 366-369

Author(s):

Shu Min Sun ◽

Wen Juan Jiang ◽

Yu Meng ◽

Yan Cheng

Keyword(s):

Wireless Communication ◽

Data Storage ◽

Measurement System ◽

Transmission Lines ◽

High Speed ◽

Time Synchronization ◽

Clock Synchronization ◽

Report Generation ◽

Test Efficiency ◽

Synchronization Module

A set of measurement system for the testing of transmission lines, composing of wireless center station, wireless current acquisition and transmission nodes, wireless voltage acquisition and transmission node, was designed, which was based on wireless communication. The high speed wireless bridge working at 2.4GHz together with the clock synchronization module based on the IEEE1588 communicating protocol were both employed for the communication and time synchronization separately. The measurement system has data storage, waveform display, data analysis, automatic report generation and other functions. The measurement system can greatly reduced arrangement of cables, thereafter improved the test efficiency.

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Bounded Oscillation Theorem for Unstable-type Neutral Impulsive Differential Equations of the Second Order

Journal of Advances in Mathematics and Computer Science ◽

10.9734/jamcs/2019/v31i430121 ◽

2019 ◽

pp. 1-9

Author(s):

U. A. Abasiekwere ◽

E. Eteng ◽

I. O. Isaac ◽

Z. Lipcsey

Keyword(s):

Differential Equations ◽

Transmission Lines ◽

High Speed ◽

Sufficient Conditions ◽

Impulsive Differential Equations ◽

Central Place ◽

Oscillatory Solution ◽

Second Order ◽

Oscillation Theorem ◽

Neutral Differential Equations

The oscillations theory of neutral impulsive differential equations is gradually occupying a central place among the theories of oscillations of impulsive differential equations. This could be due to the fact that neutral impulsive differential equations plays fundamental and significant roles in the present drive to further develop information technology. Indeed, neutral differential equations appear in networks containing lossless transmission lines (as in high-speed computers where the lossless transmission lines are used to interconnect switching circuits). In this paper, we study the behaviour of solutions of a certain class of second-order linear neutral differential equations with impulsive constant jumps. This type of equation in practice is always known to have an unbounded non-oscillatory solution. We, therefore, seek sufficient conditions for which all bounded solutions are oscillatory and provide an example to demonstrate the applicability of the abstract result.

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