Questions & Answers on Inductors

Sep 1, 2017

The self resonant frequency of an inductor is the frequency at which the parasitic capacitance of the inductor resonates with the ideal inductance of the inductor resulting in an extremely high impedance. At this frequency the device looks like an open circuit.The parasiticsof an inductor vary based on the type of inductor - wire wound inductor, multi-layer inductor, conductive film inductor etc.F...read more

What is Quality Factor in RF Inductors?

Inductors

The Q factor is a dimensionless parameter that tells us how close a real inductor is to an ideal inductor. Every real world inductor has some unwanted resistance associated with it. This unwanted resistance can be due to several factors - Standard DC resistance, Skin effect, radiated energy and core losses etc. If we realize the equivalent circuit of an inductor, it consists of an inductor with a ...read more

How does the Inductance and Impedance of an Inductor vary with Frequency?

Inductors

Editorial Team

Sep 1, 2017

The response of inductance and impedance vs frequency can be seen in the graph below.Frequency Response of an Inductor:At frequencies below the SRF, impedance and inductance increase with frequency.At the SRF, the impedance and inductance is at its maximum.At frequencies above the SRF, impedance and inductance decrease with frequency.The inductance only acts like an inductor up to its Self Resonan...read more

How high should Self-Resonant Frequency be for an inductor to work?

Inductors

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How do you Apply a DC bias onto an RF line

Inductors RF Basics

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What are the Key Parameters for Selecting RF Inductors?

Inductors

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