Wenbo current of chip capacitor

Who is Wenbo Liu?

Wenbo Liu (Student Member, IEEE) received the B.Sc. degree from the Department of Electrical Engineering, Zhejiang University, Hangzhou, China, in 2014, and the Ph.D. degree from the Department of Electrical and Computer Engineering, Queen's University, Kingston, ON, Canada, in 2020.

Which capacitor is used for narrow band RF bypass?

Exactly at the SRF, one will have the lowest possible impedance, and therefore, a capacitor is commonly used for narrow band RF bypass applications by choosing a capacitor whose SRF is at the required bypass frequency. In other words, at the SRF, the capacitive impedance of the device equals the parasitic inductive impedance of the device.

What is a capacitor design?

Capacitor design (dielectric thickness, number of layers, and cover layer thickness) is selected for any requirement by a computer, which is programmed to calculate the best design for the electrical parameters required (capacitance, working voltage, dielectric withstanding voltage, and I.R.).

Can a chip capacitor increase capacitance?

In application, the AC voltage across the chip capacitor may in some cases well exceed the 1.0 ± .02 Vrms test voltage, generating a substantial increase in capacitance.

What is ripple current in a capacitor?

Ripple current is the AC current that the flows in and out of the capacitor as it is being used in a circuit. This causes heat to be generated within the capacitor, which then causes the temperature of the capacitor to rise.

What does a 10 pF capacitor look like?

It can be said that, for example, a 10pF capacitor could look like a 1000pF capacitor as the SRF is approached. See Figure 11 above for Johanson SPICE equivalent circuit for a capacitor. The values shown are for a typical 10 pF capacitor at 900 MHz.