xoneftws
Junior Member level 2
Recently I use ADS Simulate Loop- PCB antenna, and it’s frequency is 13.56Mhz. Acturally I use Vect Network Analyser to measure this antenna’s inductor value is 1.6uH, but now when I simulate it in ADS, it is very different with acturally result.
PCB Antenna Picture
Port1 Setting
Port2 Setting
Substrate setting
Layout Layers Setting
Mesh Setting
Simulation Setting
Simulation result
Actual measure result S11 of the pcb antenna
From the simulation result, we know this impedence is 50*(4.02E-8 + 0.068j), it’s equivalent circuit is a resistor series a inductor, the resistor’s value is 50×4.02E-8, and the inductive reactance is 50×0.068 = 3.4 = jwL = 2*3.14*13.56 E6 => L= 0.0399uH, but I use Vect Network Analyser to measure this antenna’s inductor value is 1.6uH, so why ?
This is my Project , Can somebody help me?
View attachment 13M56_Ant_prj.rar
PCB Antenna Picture
Port1 Setting
Port2 Setting
Substrate setting
Layout Layers Setting
Mesh Setting
Simulation Setting
Simulation result
Actual measure result S11 of the pcb antenna
From the simulation result, we know this impedence is 50*(4.02E-8 + 0.068j), it’s equivalent circuit is a resistor series a inductor, the resistor’s value is 50×4.02E-8, and the inductive reactance is 50×0.068 = 3.4 = jwL = 2*3.14*13.56 E6 => L= 0.0399uH, but I use Vect Network Analyser to measure this antenna’s inductor value is 1.6uH, so why ?
This is my Project , Can somebody help me?
View attachment 13M56_Ant_prj.rar
Last edited: