Introduction - If you have any usage issues, please Google them yourself
arious linear time-invariant electromagnetic systems are
most conveniently analyzed in the frequency domain
because there exist mature computational techniques (e.g.,
[1]) and related software (e.g., [2, 3]). Most measurements of
antennas and microwave systems are also performed in the
frequency domain (using vector network analyzers), yielding
a discrete set of frequency-domain data. In order to obtain the
time-domain response of such systems