 #1
 201
 4
Summary:
 Impedance matching
Main Question or Discussion Point
Hello friends,
I am studying an article on impedance matching which states about matching a resistance of 52 ohms with 2k ohm. It is accomplished by adding an inductance of XL= 318 ohms in series with the 52 ohm resistor yielding a parallel equivalent of 328ohm as reactance and 2k ohm as my desired resistance. see in fig 1.
fig 2 states adding a counter reactance to negate the additional reactance as in fig 1 part 2...(leaving it for a moment)
I simulated this circuit in LTspice and found out the impedance to be 1Meg ohms which way beyond my expectation of 2k ohm.
(I have tried many arbitrary values of f and L and haven't found any luck yet. For the time being its 5H.)
I am not sure about what inductance value should I take so that I can achieve resultant impedance of 2k ohm in the graph.
Unfortunately I also don't have the frequency value as it is not mentioned in the article.(XL=2.pi.f.L)
What inductance and f should be need for 2k ohm as a result.???
Thank you!!
I am studying an article on impedance matching which states about matching a resistance of 52 ohms with 2k ohm. It is accomplished by adding an inductance of XL= 318 ohms in series with the 52 ohm resistor yielding a parallel equivalent of 328ohm as reactance and 2k ohm as my desired resistance. see in fig 1.
fig 2 states adding a counter reactance to negate the additional reactance as in fig 1 part 2...(leaving it for a moment)
I simulated this circuit in LTspice and found out the impedance to be 1Meg ohms which way beyond my expectation of 2k ohm.
(I have tried many arbitrary values of f and L and haven't found any luck yet. For the time being its 5H.)
I am not sure about what inductance value should I take so that I can achieve resultant impedance of 2k ohm in the graph.
Unfortunately I also don't have the frequency value as it is not mentioned in the article.(XL=2.pi.f.L)
What inductance and f should be need for 2k ohm as a result.???
Thank you!!
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