Locate on a Smith Chart the following load impe- dances terminating a 50-0 impedance T-line. (a) Z= 200 f2, (b) Z-/25 (2, (c) Z-50+j 50, and (d) Z = 25-/2000. 2.26 Repeat Problem 2.16 using the Smith Chart. 2.27 A 0.690A-long lossless Z, = 75 l T-line is terminated in a load Z = 15+j67 0. Use the Smith Chart to find (a) I. (b) VSWR, (c) Z. and (d) the distance between the input end of the line and the first voltage maximum from the input end. Probe voltage 339 10 6 8765 432 Scale (cm) 2.31 Figure 2.56 is generated for a 50-02 slotted coaxial air line terminated in a short circuit and then in an unknown load. Determine (a) the measurement frequency, (b) the VSWR when the load is attached, and (c) the load impe- dance. 2.32 Figure 2.57 is generated for a 50-0 slotted coaxial air line terminated in a short circuit and then in an unknown load. Determine (a) the measurement frequency, (b) the VSWR when the load is attached, and (c) the load impe- dance. FIGURE 2.56 Field pattern with air line terminated in a short (light blue line) and in an unknown load (dark blue line) for Problem 2.31.