when two transmission lines are to be connected in cascade, a reflection of the wave to be transmitted from one to the other will occur if they do not have the same characteristic impedances. Show that a quarter-wavelength line inserted between the cascaded lines will cause the first line to see its characteristic impedance z01 as a termination and thus eliminate the raeflection in transfer if \beta _(2)l_(2) and z_(02) = \sqrt(z_(01)z_(03)) where z_(02 )and z_(03)are the characteristic impedances of the quarter wave section and the final line respectively