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.
Re: how to simulate quality factor of an spiral inductor in
Supposed that you have the inductor model...
It's easy: use a Term connected to the inductor and simulate as Spar in your frequency range (don't forget the gnd...)
Use Function: Yin=Port input admittance in Spar library.
Add the following MeasEqn to the schematic: Q=imag(Yin1)/real(Yin1).
You'll find the Q in the dataset to be plotted.
Re: how to simulate quality factor of an spiral inductor in
You have a model for spiral inductor under lumped components pallete, and a choice of them in TLINE microstrip pallete. You can work with them in your circuit unless you wont to know exactly and in advance the Q of your inductor. They include loss calculation. You can calculate Q factor as stated above in previous mail. However, when you put your inductor between two ports, you are determining the loaded Q, it should be re-calculated to unloaded (inductor itself is loaded with 50 ohm port impedance, this is not true Q).
There is another method to determine unloaded Q directly - from short circuted inductor (one inductor terminal to ground, the other to 50 OHm port termination), and unloaded Q is determined from reflection.
This site uses cookies to help personalise content, tailor your experience and to keep you logged in if you register.
By continuing to use this site, you are consenting to our use of cookies.
