How to connect a Balun to an antenna object?

***Please Help - I am really struggleing with this***

My goal is create an RF network in MATLAB using the antenna and RF toolboxes where I already have a 2:1 balun that has been fully characterized as a Touchstone file.

I also have designed a loop antenna using the Antenna Toolbox and have produced successful S11 Return Loss graphs of the antenna by itself.

I need to find a way to connect the s-object (i.e. the balun) to the feed point of the antenna, and then re-run the simulation to get new S11 charts. Can anyone tell me how to do this with some brief code example? Many thanks!

P.S I am quite new to the antenna and RF toolboxes.

Answer 1

[Dr. JANAK TRIVEDI]

To connect the s-object (i.e. the balun) to the feed point of the antenna, you can use the rfckt.series function in MATLAB. Here is an example code:

% Load the balun s-parameter file

balun = rfdata.Touchstone('Balun.s2p');

% Load the antenna

object

antenna = load('LoopAntenna.mat');

% Connect the balun and the antenna using rfckt.

series

circuit = rfckt.series(balun, antenna.loop);

% Analyze the circuit

for the S-parameters

s_params = sparameters(circuit);

% Plot the S11 parameter

rfplot(s_params, 'S11');