Inductors and Capacitors

Spiral inductor and interdigital capacitor

Use the inductor and capacitor objects and functions to create and visualize printed circuit board (PCB) inductors and capacitors. Passive components like inductors and capacitors find a major role in system-level design.

Spiral inductors are used in RF and microwave PCB circuits as resonant-circuit elements and chokes in power supplies, voltage controlled oscillators (VCOs), low-noise amplifiers (LNAs), mixers, and intermediate frequency filters (IFFs).

Interdigital capacitors are used as antenna radiators in lab-on-chip (LOC) devices, microchips, and medical applications. These capacitors are also used in the material sciences space to measure conductivity, permittivity, and permeability of materials.

Objects

expand all

Inductor

spiralInductor Create spiral inductor in four different shapes

Capacitor

interdigitalCapacitor Create basic interdigital capacitor

Functions

`show`	Display PCB component structure or PCB shape
`info`	Display information about PCB component structure
`capacitance`	Calculate capacitance
`inductance`	Calculate inductance
`pcbcascade`	Create new component using cascade operation
`shapes`	Extract all metal layer shapes of PCB component

Featured Examples

On-Chip Square Spiral Inductor for Si RFIC Application

Model and characterize an on-chip square spiral inductor.

Open Live Script

Model and Analyze Microstrip Interdigital Capacitor as Bandpass filter

The interdigital capacitor (IDC) is a multi-finger periodic structure and is frequently used in the microstrip microwave integrated circuits for RF or microwave development. The interdigital capacitors use the capacitance that occurs across a narrow gap between conducting fingers. They are optimized based on applications.

Open Live Script

Introduction to Passive Planar Spiral Inductors

Design, visualize, and analyze different types of spiral inductors.

Open Live Script