Meshing paraboloid using UTD

User: "Marat Taram"
Altair Community Member
Updated by Marat Taram

__Hi guy's. Feko suggests very rough mesh for paraboloid (see attached image "Meshed paraboloid"). Paraboloid diameter is very big in terms of lambda (about 500 lambda). A difference between original and meshed surface's confuse me., because distance between them is about several lambda.

__1. Will this affect accuracy? From what surface ray will reflect: from exact paraboloid surface or from big mesh triangle several lambda away from it?

__2. Am i right, that UTD method (which i choosed for paraboloid) also includes GO

__3. In solver setting - high frequency there is option for UTG/GO "max number of ray interactions".

Am i right, that If, for exhample, max number of ray interactions=3, then FEKO will account for following ray's:

1) reflected- transmitted- reflected,

2) reflected - reflected- diffracted,

3) diffracted - reflected - diffracted,

4) diffracted - diffracted - transmitted,

etc.

__Thank's in advance.

image

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    User: "GGAMPALA"
    Altair Employee
    Accepted Answer
    Updated by GGAMPALA

    UTD and RL-GO in Feko are two different solvers. For reflector antenna applications (which I believe is what you are trying to do), I would recommend to use RL-GO rather than UTD.