my master thesis is attached-it will work with a little help
I was able to make the attach file (which is a simulation of microwave oven) more efficient by changing the parameters.
It consists of two parts: waveguide and cavity.
If you investigate the waveguide and cavity seperately (one by one);
I have a efficient waveguide with -30 dB s1.
and my cavity itself has resonant dimensions at 2.45 GHZ.
They are both working good themselves.
When I connect them it seems they dont work.s1 becomes 0.
This is my problem.
I think I can overcome this problem by two ideas:
1-)To put a material inside the cavity that is able to absorb power (like a potatoe)
But i dont know the permittivity, permeability of it.
When i tried to put some material arbitrarily it seems that the s1 parameter makes some difference.I was able to get -1 dB instead of 0 which is again too high.
I try to get -10 dB at least.
Can anyone tell me what material to put inside the cavity to get a good result???
2-)The best mode that works with my system is TE 564.
I dont know how to tell HFSS to excite the waveguide by this mode.
can you help me about these two topics?
this file is in .hfss format !!
how to open it. can you please mention any viewer for this format !!
you can open it using Ansoft HFSS :)
Hi wickedweasel !!!
I didn't download your project but I've got an answer for the 1st one:
You need to put inside a water.
there are some reason for that ; mainly water have high dielectric loss(Epsilon''=80) and sea water have electric conductance of 4 S/m (fresh water have 0.05 S/m averagely).
(for general knowledge; potatos have epsilon'=57.3 and tan(delta)=0.27 - at room temperature and at 3GHz)
About the second quest. - How do you will physically excite the TE 564 mode ?
Hoped It helped.
dear itzikhaim,
thank you very much for your interest to my problem.
For the first problem: I will try to put water inside.
For the second: I want to tell HFSS to excite the waveguide by
TE 564? but i dont know how to do it :(
do you have any idea?
Regards
Hello again wickedweasel !!!
I thought you can handle this mode doing the following:
1. right click at wavePort1 (of your exictation menu in your project) choose properties
2. Go to Modes folder
3. Enter the number of modes ---> but it won't work because HFSS limits it to 25 modes.
I'm really don't know how to handle it.
Good Luck any way!!!
dear itzikhaim
thanks a lot,
i will try it