A lossless transmission (TL) line has a characteristic impedance of Zo= 100 N, a load impedance of ZR = 40 + j70 N and its operating frequency is fo = 900 MHz. Use Smith chart to evaluate the following parameters: 1. The reflection coefficient |KR|Z OR, and the voltage standing wave ratio (VSWR). 2. The distance from the load to the nearest maximum and minimum voltage positions (in meter). 3. The impedance Za at a distance of 1. 35 A away from the load.

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A lossless transmission line (TL) has a characteristic impedance of Zo= 250 N, a load impedance of ZR = 125 – j150 N and its operating frequency is fo Smith chart to evaluate the following parameters: 150 MHz. Use 1) The load admittance YR. 2) The reflection coefficient [Kr|ZOR 3) The voltage standing wave ratio (VSWR). Then calculate the maximum and minimum impedance in this TL, (Zmax and Zmin). 4) The distance from load to the nearest maximum (dmax) and minimum voltage positions (dmin) (in meter). 5) Find Zd at a distance away from a load by d= 3.3 2. Then calculate Zd using TL equation.

1. Matching of a transmission line with a characteristic impedance (Zo) and a load impedance (ZR) can be obtained when (a) ZR=0.5ZO (b) ZR-2Z0 (c) ZR-Zo (d) ZR=0 2. Standing wave ratio (S) for a short circuit load connected to a transmission line is equal to (a) S=0 (b) S=-1 (c) S= Infinity (d) S=1 3. Any transmission line repeats its impedance, voltage, and current characteristics every (Where n-0, 1, 2, 3....etc.) (b) nλ/3 (a) nλ/2 (c) ni/5 (d) nλ/6 4. In smith chart, moving in the clockwise direction means moving a) From load to generator b) From generator to load 5. In Crank diagram, moving in the clockwise direction from the load to the source can be evaluated using the formula a) +j2Bd b)-j3Bx c) -j2Bd d)-j2Bx