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(This is not a question I was given to solve, it is a question about the course notes.)

In impedance matching, what is the next best method after the complex conjugate method?

If the source has V_s and Z_s, what should Z_L be?

V_s, Z_s, and Z_L are in series.

The best impedance match is when Z_s = (Z_L)*

And this was derived from maximum power transfer, or

P = (I_rms)^2 * R_L = 1/2 * (|V_s|/( |Z_s + Z_L| )) = ...

The notes say

Z_L = R = |Z_s|

This says the next best choice is having Z_L be a resistance equal to the magnitude of Z_s.

However, from the math I did, this assumes that there cannot be a reactance for Z_L.

Why this assumption?

Edit: Why is this the "second-best method"? Why is there the assumption that there is no load reactance?

(I do not have any criteria either. It is from a handout. I will ask the professor after the 1st day of class, I guess.)

## Homework Statement

In impedance matching, what is the next best method after the complex conjugate method?

If the source has V_s and Z_s, what should Z_L be?

V_s, Z_s, and Z_L are in series.

## Homework Equations

The best impedance match is when Z_s = (Z_L)*

And this was derived from maximum power transfer, or

P = (I_rms)^2 * R_L = 1/2 * (|V_s|/( |Z_s + Z_L| )) = ...

## The Attempt at a Solution

The notes say

Z_L = R = |Z_s|

This says the next best choice is having Z_L be a resistance equal to the magnitude of Z_s.

However, from the math I did, this assumes that there cannot be a reactance for Z_L.

Why this assumption?

Edit: Why is this the "second-best method"? Why is there the assumption that there is no load reactance?

(I do not have any criteria either. It is from a handout. I will ask the professor after the 1st day of class, I guess.)

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