maria fernanda
Newbie level 5
Hi!!
I am simulating a CPW (attached picture), using 2 dielectric materials as substrate. I know the rule of thumb for defining wave ports when I use only one dielectric (width wave port =3(2*w+s)) and (length wave port=4h)and it woks!, but when I applied this rule for two dielectrics assuming the total thickness equal to the sum of two dielectrics, it did not work!.
I do not know if I should use the same rule when I am designing the CPW with 2 dielectric substrates or its better use Lumped port than wave ports in this case. I got wrong characteristic impedance.
I will appreciate your help
I am simulating a CPW (attached picture), using 2 dielectric materials as substrate. I know the rule of thumb for defining wave ports when I use only one dielectric (width wave port =3(2*w+s)) and (length wave port=4h)and it woks!, but when I applied this rule for two dielectrics assuming the total thickness equal to the sum of two dielectrics, it did not work!.
I do not know if I should use the same rule when I am designing the CPW with 2 dielectric substrates or its better use Lumped port than wave ports in this case. I got wrong characteristic impedance.
I will appreciate your help