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design

Design microstrip transmission line around specified frequency

Since R2021b

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Syntax

mline = design(mlineobj,frequency)
mline = design(___,Name=Value)

Description

mline = design(mlineobj,frequency) designs a microstrip transmission line around the specified frequency.

mline = design(___,Name=Value) designs a microstrip transmission line with additional options specified using name-value arguments.

Note

PCB components designed using the design function operate around the specified frequency with a 10-15% tolerance.

example

Examples

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Open Live Script

Design a microstrip line around 1.8 GHz and with a characteristic impedance of 75 ohms.

mline = design(microstripLine,1.8e9,Z0=75);
figure;
show(mline);

Figure contains an axes object. The axes object with title microstripLine element, xlabel x (mm), ylabel y (mm) contains 6 objects of type patch, surface. These objects represent PEC, feed, Teflon.

Plot the S-parameters of this line.

spar = sparameters(mline,1.8e9);
rfplot(spar)

Figure contains an axes object. The axes object with xlabel Frequency (GHz), ylabel Magnitude (dB) contains 4 objects of type line. These objects represent dB(S_{11}), dB(S_{21}), dB(S_{12}), dB(S_{22}).

Input Arguments

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Microstrip transmission line, specified as a microstripLine object.

Example: mline = microstripLine; design(mline,2e9) designs a microstrip transmission line around a frequency of 2 GHz.

Design frequency of the transmission line, specified as a real positive scalar in hertz.

Example: 55e6

Data Types: double

Name-Value Arguments

Specify optional pairs of arguments as Name1=Value1,...,NameN=ValueN, where Name is the argument name and Value is the corresponding value. Name-value arguments must appear after other arguments, but the order of the pairs does not matter.

Example: Z0=70

Characteristic impedance of the microstrip transmission line, specified as a positive scalar in ohms.

Data Types: double

Length of the line, specified as a positive scalar in Lambda.

Data Types: double

Output Arguments

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Microstrip transmission line operating around the specified frequency, returned as a microstripLine object.

Version History

Introduced in R2021b

See Also