R = 25.5 ohms. jX = 10 ohms. VSWR = 2.06:1
R = 82.9 ohms, jX = 31.0 ohms, VSWR = 1.99:1
Note: When a resistive load impedance is less than Z0, the reflected voltage undergoes a 180 degree phase shift. When a resistive load impedance is greater than Z0, the reflected current undergoes a 180 degree phase shift.
The first impedance has a reflection coefficient of 0.3333 at 150 degrees. That would put the two waves 150 degrees out of phase at the load, not 30 degrees out of phase.
The second impedance has a reflection coefficient of 0.3333 at 30 degrees. Seems that is the only load impedance for Z0=50 ohms that will cause an SWR=2:1 with Vref leading Vfor by 30 degrees. Note this is the 1.65+j0.6 impedance that I mentioned in my previous posting. When you un-normalize that impedance to 50 ohms you get the second impedance above.