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- TL;DR Summary
- Can resonant frequency always be calculated from solely the inductance and capacitance regardless of the configuration of the resonator circuit/cavity?

Consider an LC circuit consisting of a parallel plate capacitor and a solenoid inductor in series. The formula for the resonant frequency of this circuit is 1/√(LC) where “L” is the inductance of the solenoid and “C” is the capacitance of the capacitor.

Now consider a high-frequency cavity resonator consisting of two concentric metal cylinders with a vacuum between them. Can the same formula as above be used to calculate the resonant frequency of this configuration if both the inductance and capacitance are known?

As always, thanks in advance.

Now consider a high-frequency cavity resonator consisting of two concentric metal cylinders with a vacuum between them. Can the same formula as above be used to calculate the resonant frequency of this configuration if both the inductance and capacitance are known?

As always, thanks in advance.

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