Final answer:
Travelling wave tubes are preferred in radar applications over magnetrons because they have a wide bandwidth, greater efficiency, and the capacity to generate large duty cycle.
Step-by-step explanation:
Travelling wave tubes are preferred in radar applications over magnetrons because they have a wide bandwidth, greater efficiency, and the capacity to generate large duty cycle.
Wide bandwidth is important in radar applications because it allows for the detection of signals at various frequencies, enabling the radar system to measure the distance, speed, and intensity of different objects. Travelling wave tubes also have greater efficiency, meaning they can convert more of the input power into output power, resulting in a stronger radar signal. And the capacity to generate large duty cycle means that travelling wave tubes can sustain high power output for longer periods of time, making them suitable for radar applications.