Continue to Site

Welcome to EDAboard.com

Welcome to our site! EDAboard.com is an international Electronics Discussion Forum focused on EDA software, circuits, schematics, books, theory, papers, asic, pld, 8051, DSP, Network, RF, Analog Design, PCB, Service Manuals... and a whole lot more! To participate you need to register. Registration is free. Click here to register now.

Impedance Matching ADS

Status
Not open for further replies.

ndequeiroz

Junior Member level 3
Joined
May 11, 2017
Messages
25
Helped
0
Reputation
0
Reaction score
0
Trophy points
1
Activity points
201
Hello everybody

I am a little confused with the smith chart matching tool.

The source impedance is the impedance of an antenna (50 Ohms), the rectifier impedance is 20.043 +j222.779. (Zin = Vin/I_Probe1.i)

QMatching.png


SmithChart.png



Am i doing something wrong ?

I was expecting something near to 50 Ohms to real part, and 0 to the imaginary part...
 

Hello everybody

I am a little confused with the smith chart matching tool.

The source impedance is the impedance of an antenna (50 Ohms), the rectifier impedance is 20.043 +j222.779. (Zin = Vin/I_Probe1.i)

View attachment 144027


View attachment 144028



Am i doing something wrong ?

I was expecting something near to 50 Ohms to real part, and 0 to the imaginary part...

You are looking at normalized impedance values.

0.99616*50 = 49.808 Ohms

Uncheck the Normalize option at the top.
 

You are looking at normalized impedance values.

0.99616*50 = 49.808 Ohms

Uncheck the Normalize option at the top.

I know that's the normalized impedance showed in smith chart tool.

My question is: why in my simulated circuit which the Zin(Impedance of the rectificator) is in the first image(Real and imaginary part) i dont get 50+j*0 but 25.506+j*13.420


My Circuit
Circuit.png

Input Impedance
Zin.png


Thanks
 

Status
Not open for further replies.

Part and Inventory Search

Welcome to EDABoard.com

Sponsor

Back
Top