Hello!
I have some problems when calculating on a special RLC-circuit. The circuit looks like this:
1 inductor (50nH) in series with a RLC-circuit that consists of 1 inductor (50nH), 1 capacitor (variable) and 1 resistor (139 ohms) all paralell-connected.
The resonant frequency is at 90 MHz, and the question is how much the inimpedance is then?
I found that the circuit has two resonances, one series resonant and one parallel resonant. Continued then with defining the resonance circuit from Im(Y) = 0, where Y is the parallel resonant circuit Y = jwL1 + 1/(jwL2) + jwC + 1/R. Am I on the right way?
I can draw a picture of the circuit if it is needed!
I have some problems when calculating on a special RLC-circuit. The circuit looks like this:
1 inductor (50nH) in series with a RLC-circuit that consists of 1 inductor (50nH), 1 capacitor (variable) and 1 resistor (139 ohms) all paralell-connected.
The resonant frequency is at 90 MHz, and the question is how much the inimpedance is then?
I found that the circuit has two resonances, one series resonant and one parallel resonant. Continued then with defining the resonance circuit from Im(Y) = 0, where Y is the parallel resonant circuit Y = jwL1 + 1/(jwL2) + jwC + 1/R. Am I on the right way?
I can draw a picture of the circuit if it is needed!