Hi,

I'm implementing a RF front end at a very low level of power consumption. While I was working on a inductive-source degenerated LNA, I realised that I would require a large inductance (>15nH), given an TSMC 0.18 technology.

During my simulations to find L, R and Q of an inductor, I found that the inductor's L value peaks at a certain frequency. Thankfully, this frequency is also the one I'm working with. This L value is larger than it's value at low freq (say 1Hz) byt a factor of 2. (11nH@1Hz and 22nH@my_frequency_of_interest). I was wondering if this value/simulation result is a reliable one or if anyone has had a similar experience. The simulations were performed in ADS and Cadence.

Any help is appreciated.

Cheers,
Sandman.

Thanks for your inputs, aw.