Help me simulate a Pifa RFID in CST MWS
时间：03-31
整理：3721RD
点击：
Hello everyone.
I'm trying to simulate a pifa RFID from a paper but i'm having problems while trying to feed. I don't think i can post the paper up here so i'll try to describe it as best as possible.
It is a tag antenna that uses 2 pifa radiators which are fed inductively by a loop connected to the microchip to backscatter the information back to the reader.
In CST MWS, i used a discrete port to feed the loop,to in effect act as the microchip but when defining the impedance of the port i can't use a complex value which is a problem because the impedance of the microchip is 10 - j150 ohms.
I thought about just using the resistive part for the simulation but i think this would be wrong since impedance matching takes into account the figuration of the structure.
I also can't get the same current distribution that is shown in the paper. When i animate the current it seems like it is only inducing current in the ground plane but not in the 2 radiators.
The orginal design was simulated using HFSS if that helps.
I'm new to CST so any help will be appreciated and i've also attached my file below.
I'm trying to simulate a pifa RFID from a paper but i'm having problems while trying to feed. I don't think i can post the paper up here so i'll try to describe it as best as possible.
It is a tag antenna that uses 2 pifa radiators which are fed inductively by a loop connected to the microchip to backscatter the information back to the reader.
In CST MWS, i used a discrete port to feed the loop,to in effect act as the microchip but when defining the impedance of the port i can't use a complex value which is a problem because the impedance of the microchip is 10 - j150 ohms.
I thought about just using the resistive part for the simulation but i think this would be wrong since impedance matching takes into account the figuration of the structure.
I also can't get the same current distribution that is shown in the paper. When i animate the current it seems like it is only inducing current in the ground plane but not in the 2 radiators.
The orginal design was simulated using HFSS if that helps.
I'm new to CST so any help will be appreciated and i've also attached my file below.