mfarhan1
Advanced Member level 4
Dear all
I have a basic question, most of you had experience on that.
You often came across a paper of coupler, balun in which after designing, the author claims that he had made the coupled line in form of spiral and do the broadside coupling to save the space now I am utterly confused that how a 90 degree MS or strip line is converted to spiral which shows same result. Spiral has mutual inductance between lines and ground soHow to model a spiral equivalent of microstrip, (simulation do help but there has to be a good starting point).
Second question: Spiral once made will have some inductance in it and that will change the reactive part of input impedance! So i believe an impedence matching network is required now to connect this component to others, am i right? or is there any other method
Any resource which exactly talks about same problem will be highly appreciated
I hope I had made my question clear.
Many thanks
I am adding two picture from paper which did same thing with out mentioning any procedure.
I have a basic question, most of you had experience on that.
You often came across a paper of coupler, balun in which after designing, the author claims that he had made the coupled line in form of spiral and do the broadside coupling to save the space now I am utterly confused that how a 90 degree MS or strip line is converted to spiral which shows same result. Spiral has mutual inductance between lines and ground soHow to model a spiral equivalent of microstrip, (simulation do help but there has to be a good starting point).
Second question: Spiral once made will have some inductance in it and that will change the reactive part of input impedance! So i believe an impedence matching network is required now to connect this component to others, am i right? or is there any other method
Any resource which exactly talks about same problem will be highly appreciated
I hope I had made my question clear.
Many thanks
I am adding two picture from paper which did same thing with out mentioning any procedure.