yorkyong
Junior Member level 3
If a spiral inductor is improved to have a higher self resonant frequency (SRF), but remaining the inductance and Q factor, What will a circuit, e.g. VCO, benefit from it?
As in my knowledge, the performace of VCO is determined by Q-factor of inductor. The designers optimize the inductor to have the peak Q at the operation frequency. But the improvement is only in SRF, which seems to have no effect on VCO performance.
However the improvement does do some good to the inductor itself and SHOULD have done good to the circuit, which I am not very clear. Can the experts here give me some ideas about that?
As in my knowledge, the performace of VCO is determined by Q-factor of inductor. The designers optimize the inductor to have the peak Q at the operation frequency. But the improvement is only in SRF, which seems to have no effect on VCO performance.
However the improvement does do some good to the inductor itself and SHOULD have done good to the circuit, which I am not very clear. Can the experts here give me some ideas about that?