Touchstone.jl

Save and load network parameters in the Touchstone® file format. Touchstone® is a registered trademark of Agilent Technologies, Inc.

Installation:

To install the latest release of the package, install Julia using Juliaup, start Julia, and enter the following command:

using Pkg
Pkg.add("Touchstone")

To install the development version, start Julia and enter the command:

using Pkg
Pkg.add(name="Touchstone",rev="main")

If you get errors when running the examples, please try installing the latest version of Julia and updating to the latest version of Touchstone.jl by running:

Pkg.update()

Then check that you are running the latest version of the package with:

Pkg.status()

Examples:

Load and save a Touchstone file

Version 1

julia> using Touchstone

julia> open("example1.s1p","w") do file
write(file,
"!Example 1:
!1-port S-parameter file, single frequency point
# MHz S MA R 50
!freq magS11 angS11
2.000 0.894 -12.136")
end

julia> example1 = touchstone_load("example1.s1p")
Touchstone.TouchstoneFile([2.0e6], ComplexF64[0.874020294860635 - 0.18794819544685323im;;;], "mhz", "s", "ma", 50.0, 1.0, 1, "12_21", 1, 0, [50.0], String[], "Full", Tuple{Char, Vector{Int64}}[], ["Example 1:", "1-port S-parameter file, single frequency point", "freq magS11 angS11"], [2.0, 0.894, -12.136], Float64[])

julia> touchstone_save("example1_saved.s1p", example1.f, example1.N, version=1.0)

Version 2

julia> using Touchstone

julia> open("example2.ts","w") do file
write(file,
"!Example 1:
!1-port S-parameter file, single frequency point
[Version] 2.0
# Hz S RI R 50.0
[Number of Ports] 1
[Number of Frequencies] 1
[Reference] 50.0
[Network Data]
! freq ReS11 ImS11 
2.0e6 0.874020294860635 -0.18794819544685323
[End]")
end

julia> example2 = touchstone_load("example2.ts")
Touchstone.TouchstoneFile([2.0e6], ComplexF64[0.874020294860635 - 0.18794819544685323im;;;], "mhz", "s", "ma", 50.0, 1.0, 1, "12_21", 1, 0, [50.0], String[], "Full", Tuple{Char, Vector{Int64}}[], ["Example 1:", "1-port S-parameter file, single frequency point", "freq magS11 angS11"], [2.0, 0.894, -12.136], Float64[])

julia> touchstone_save("example2_saved.ts", example2.f, example2.N, version=2.0)

Contributing:

We welcome contributions in the form of issues/bug reports or pull requests. This project uses the MIT open source license. You retain the copyright to any code you contribute.

References:

1. Touchstone v1.1
2. Touchstone v2.0
3. Touchstone v2.1