Transmission Lines

Microstrip lines, coplanar waveguides

Use the transmission line objects and functions to create and visualize different types of transmission lines used on a printed circuit board (PCB).

RF and microwave transmission lines connect different components on a PCB board. They allow signals to flow between the components. There are various types of transmission lines and they all have unique geometries and satisfy different requirements when used on a PCB. A well-designed transmission line reduces the insertion loss in an RF system and improves the circuit performance.

Apps

Transmission Line Designer

Design, visualize, and analyze transmission lines

Objects

`coplanarWaveguide`	Create coplanar waveguide transmission line
`microstripLine`	Create transmission line in microstrip form
`coupledMicrostripLine`	Create coupled microstrip transmission line
`microstripLineCustom`	Create coupled form of single or differential microstrip transmission line

Functions

`show`	Display PCB component structure or PCB shape
`info`	Display information about PCB component structure
`pcbcascade`	Create new component using cascade operation
`propagationDelay`	Compute propagation delay of transmission line
`layout`	Plot all metal layers and board shape
`shapes`	Extract all metal layer shapes of PCB component
`rlgc`	Compute resistances, inductances, conductances, and capacitances
`getZEven`	Calculate even mode impedance of differential PCB transmission line
`getZOdd`	Calculate odd mode impedance of differential PCB transmission line
`dgs`	Create defected ground structure of PCB element

Featured Examples

Dual-Fed Square Microstrip Patch Antenna for BLE Applications

Design and analyze the dual-fed square microstrip patch antenna for Bluetooth Low Energy applications.

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Prototype, Design, and Analysis of SIW based Microstrip Tapered Transmission Line

Design and analyze a Substrate Integrated Waveguide (SIW) microstrip transmission line using Gerber files.

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Design Two-Stage Low Noise Amplifier Using Microstrip Transmission Line Matching Network

Use the RF PCB Toolbox™ shapes and the pcbComponent object functionality to design a two-stage low noise amplifier (LNA) for a wireless local area network (WLAN) with an input and output matching network (MNW) to maximize the power delivered to the 50 ohm load.

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