mayjailomo
Newbie level 5
Hi all,
I am recently designing a 5.8GHz wilkinson power divider. FR4 will be used in this design and the thickness of the substrate is 0.8mm. Here is the schematic of the power divider:
The resonant frequency is at 5.8GHz for S11 after fine tunning some parameters. However, with the same parameters, the resonant frequency is shifted in the momentum co-simulation. As i believe that momentum co-simulation provides a more reliable simulation result, i tuned the parameters so that the simulation result of the resonant frequency of S11 is at 5.8GHz in momentum co-simulation.
Final simulation result of the schematic:
Final simulation result in momentum co-simulation:
However, after I fabricated the coupler. The measured result is very different from the result in momentum co-simulation. And it has a higher similarity with the simulation result of the schematic.
Does anyone know the reason? Thank you for your time.
Here is the link of the workspace: shorturl.at/ntDO1 (Onedrive)
I am recently designing a 5.8GHz wilkinson power divider. FR4 will be used in this design and the thickness of the substrate is 0.8mm. Here is the schematic of the power divider:
The resonant frequency is at 5.8GHz for S11 after fine tunning some parameters. However, with the same parameters, the resonant frequency is shifted in the momentum co-simulation. As i believe that momentum co-simulation provides a more reliable simulation result, i tuned the parameters so that the simulation result of the resonant frequency of S11 is at 5.8GHz in momentum co-simulation.
Final simulation result of the schematic:
Final simulation result in momentum co-simulation:
However, after I fabricated the coupler. The measured result is very different from the result in momentum co-simulation. And it has a higher similarity with the simulation result of the schematic.
Does anyone know the reason? Thank you for your time.
Here is the link of the workspace: shorturl.at/ntDO1 (Onedrive)