I think there is something wrong with your design. First of all, even if you can find a good wire to make a 0.5nH inductor, it will be difficult for you to succeed at such a high frequency, because the higher the frequency, the higher the inductance on the wire. The skin effect of the frequency is obvious, and the distribution parameters are difficult to grasp. The perimeter of the loop interface also has a great influence, etc. It is not easy to decide on a high-frequency oscillator with accurate waveform and intact waveform. You'd better Or change your thinking. If the frequency is too high, it can be shaped by low oscillation, filtering, and frequency multiplication filtering. I think this is better.