This article covers in-depth the topic of losses in PCB transmission lines. We will talk about conductor loss, signal trace resistance, dielectric loss, loss tangent/dissipation factor of a dielectric, and total insertion loss.
Category: Signal Integrity
Signal integrity primarily involves the electrical performance of the wires and other packaging structures used to move signals about within an electronic product. Such performance is a matter of basic physics and as such has remained relatively unchanged since the inception of electronic signaling.
PerfectPulse Is the Pocket-Sized TDR Every Engineer Needs
Released last month, the PerfectPulse J2151A is the fast edge signal generator and TDR you’ve been looking for. Made by Picotest, the Phoenix-based high-resolution test company, the PerfectPulse is the new low-cost measurement equipment that will change your life. Or at least your work life.
Continue reading “PerfectPulse Is the Pocket-Sized TDR Every Engineer Needs”
Impedance Discontinuity and Signal Reflection in PCB Transmission Lines
We previously quickly discussed signal reflection in our PCB Transmission Line series. This is an in-depth article about this very important topic that PCB designers should master. The first thing to remember is that reflections in transmission lines occur due to impedance discontinuity.
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Signal Integrity: Via Stubs and Their Effects on Signal Attenuation and Data Transfer Rates
Today, we are going to talk about signal integrity. As a PCB designer, it is important for you to know the effects of via stubs on signal attenuation and data transfer rates.
How Impedance Discontinuities Affect Signal Integrity
A transmission line should have a uniform characteristic impedance. Any variation or discontinuities to the impedance causes signal reflection and distortion. Continue reading “How Impedance Discontinuities Affect Signal Integrity”
How to Analyze a PCB Transmission Line?
After establishing what a PCB transmission line is and talking about signal speed and propagation delay, and the critical length, the controlled impedance, and the rise/fall time of a PCB transmission line, we discussed impedance discontinuity and signal reflection. Today, we are going to explain how to analyze a PCB transmission line using quantities, such as voltages and currents, and line parameters, such as resistance, inductance, capacitance, and conductance.
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