The aim of this work is to easily facilitate the
student the knowledge of the electrical equivalent circuit
of the different obstacles used to develop resonators
inside a waveguide like: irises, posts, screws, etc. The
software presented here OBSTAGUIA has been made
under friendly user philosophy and is self-explicative.
The able to simulate all types of obstacles, coupled with
the graphical and mathematical capacities of MATLAB
makes this software an interesting tool easy to use by
users at any level. The second objective of this work is
the use of the computing routines developed, into more
ambitious software capable to design waveguide filters
from the user specifications, this software called Wavefil
is now under development
