Microwave Passive Devices

1. Power Monitoring in Radar Transmitters In a radar system, a directional coupler is installed between the transmitter and antenna to sample forward power. • Explain why a directional coupler is preferred over a power divider. • Analyze the impact of coupling factor on transmitter safety and system calibration.(CO1 | Reg no from 713523EC001 to 713523EC018) 2. Design Choice for a Communication Base Station A base station operating at 2.4 GHz requires continuous power monitoring without interrupting signal flow. • Recommend a suitable directional coupler type. • Justify the selection based on bandwidth, coupling factor, and insertion loss.(CO1 | Reg no from 713523EC019 to 713523EC038) 3. Fault Detection in Microwave Links Sudden power loss is observed in a point-to-point microwave communication link. Engineers use a directional coupler for troubleshooting. • Explain how the coupler helps identify impedance mismatch. • Describe how reflected power analysis aids fault localization.(CO1 | Reg no from 713523EC038 to 713523EC510)