Due to technological tolerances, the width of traces on printed circuit boards can deviate from the ideal design. As the width of the transmission lines changes, the tuner frequency will shift and the minimum reflection coefficient magnitude Γm will increase. Assuming that a maximum reflection coefficient magnitude of Γm=0.2 is allowed at 2GHz, find the maximum percentage deviation allowed in the transmission line widths.
I only need the equations that would relate Γm to width.