In Waveguide port: I choose Multipin port in Mode Setting, and then in Define Pins, how to define Potential Set Definitions in order to get the port mode as in your picture ?
please tell me how to get 1(1,-)(2,-)... in your picture ?
Thanks very much in advance
Best regards
Added after 4 minutes:
itzikhaim said:
Hi!
If you want to feed balanced element/antenna you need odd mode excitation.
But if the element is unbalanced you sohuld excite an even mode.
Choose multiport feature when defining your waveguide port.
In your CPW line attached, you excited different modes.
In waveguide multipin port the symbol 1(1,-) means; port 1, mode 1 , negetive pole (direction)
and the symbol 1(1,+) means; port 1, mode 1, positive pole (direction).
This is what you'll need to setup in order to correctly feed your CPW balanced antenna!