Ivan_
Full Member level 2
Dear all,
I'd like to reduce simulation time of a suspended stripline fed- circular waveguide travelling wave antenna in HFSS by splitting the structure in two halves. Since one of the two halves is geometrically constant (the radiating section, I don't have to change anything during the optimization), I supposed I can simulate it once and thus connect the S matrices of the two halves using an Ansoft Designer - HFSS dynamic link, doing the optimization just for the matrix containing the feed network and considering the radiating section such as a constant 'load'. As proof of my idea, I tried with a simple circular waveguide. I simulated the whole structure in HFSS, then I simulated the halved structure. By the union of the halved structure's S matrices, I wanted to reproduce exactly the same behavior of the total waveguide simulated in HFSS. The result is: IT DOESN'T WORK... Why, I ask. Do u think I negleted some particular or something? I even tried defining a multimode (3 modes) port in HFSS for the halved model port used as connection with the other half, but I can't manage to obtain the exact behavior of the total HFSS model. Here are some explicative pictures:
I really hope someone can help me. I need to perform lots of simulations for my project and if I can manage to use this 'trick', I think this can save a lot of time!!! And time's money, as they say!!!
Many thanks in advance,
Ivan
I'd like to reduce simulation time of a suspended stripline fed- circular waveguide travelling wave antenna in HFSS by splitting the structure in two halves. Since one of the two halves is geometrically constant (the radiating section, I don't have to change anything during the optimization), I supposed I can simulate it once and thus connect the S matrices of the two halves using an Ansoft Designer - HFSS dynamic link, doing the optimization just for the matrix containing the feed network and considering the radiating section such as a constant 'load'. As proof of my idea, I tried with a simple circular waveguide. I simulated the whole structure in HFSS, then I simulated the halved structure. By the union of the halved structure's S matrices, I wanted to reproduce exactly the same behavior of the total waveguide simulated in HFSS. The result is: IT DOESN'T WORK... Why, I ask. Do u think I negleted some particular or something? I even tried defining a multimode (3 modes) port in HFSS for the halved model port used as connection with the other half, but I can't manage to obtain the exact behavior of the total HFSS model. Here are some explicative pictures:
I really hope someone can help me. I need to perform lots of simulations for my project and if I can manage to use this 'trick', I think this can save a lot of time!!! And time's money, as they say!!!
Many thanks in advance,
Ivan