A microwave transmission system consists of a generator, an overcoupled cavity, two ideal but not identical dual directional couplers with matched bolometers, and a load Z.. The lossless transmission...


A microwave transmission system consists of a generator, an overcoupled cavity, two<br>ideal but not identical dual directional couplers with matched bolometers, and a load<br>Z.. The lossless transmission line has a characteristic impedance Zo. The readings of<br>the four bolometers (1, 2, 3, and 4) are 2 mW, 4 mW, 0 and 1 mW, respectively. The<br>system is shown in Fig. P4-25.<br>a. Find the load impedance Ze in terms of Zo.<br>b. Calculate the power dissipated by Ze.<br>c. Compute the power dissipated in the cavity.<br>d. Determine the VSWR on the input transmission line.<br>e. Find the ratio of Qe/Qo for the cavity.<br>Bolometers -<br>Directional<br>coupler<br>Cavity<br>20 dB<br>15 dB<br>

Extracted text: A microwave transmission system consists of a generator, an overcoupled cavity, two ideal but not identical dual directional couplers with matched bolometers, and a load Z.. The lossless transmission line has a characteristic impedance Zo. The readings of the four bolometers (1, 2, 3, and 4) are 2 mW, 4 mW, 0 and 1 mW, respectively. The system is shown in Fig. P4-25. a. Find the load impedance Ze in terms of Zo. b. Calculate the power dissipated by Ze. c. Compute the power dissipated in the cavity. d. Determine the VSWR on the input transmission line. e. Find the ratio of Qe/Qo for the cavity. Bolometers - Directional coupler Cavity 20 dB 15 dB

Jun 11, 2022
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