Inducatnce and Capacitance calculation for rectangular spiral coil

[Jeetkumar]

Hi,

I am looking for a formula that calculates self inductance and capacitance of rectangular spiral coil, i came across many formulas for helical coil and circular spiral coil but couldn't find one for rectangular coil, any help is highly appreciated.

Thanks

 

[vk6kro]

You could try this site:

http://www.circuits.dk/calculator_planar_coil_inductor.htm

And this:
http://smirc.stanford.edu/papers/JSSC99OCT-mohan.pdf

 

[Jeetkumar]

Thanks for your help, i tried this one but the problem is, it does not mention the unit in which its calculated.

 

[vk6kro]

Seems to be micrometers.

I just added a second site which does show it as micrometers.

 

[Jeetkumar]

its inductance, so i guess it to be microhenry, but the thing is that it gives me weird value for capacitance when i calculated. i have already mailed circuitdk admin about the information for unit, anyways thanks from your side, if you could find unit let me know so that i can resume my work.

Thanks