13 Questions
What does TRAPATT stand for?
Trapped Plasma Avalanche Triggered Transit
What is the basic operation of the TRAPATT oscillator?
Reverse biased p-n junction diode
What are high-peak-power TRAPATT diodes typically made of?
Silicon n+-p-p+ structures
What is the width range of the depletion region in high-peak-power TRAPATT diodes?
2.5 to 12.5 μm
What happens as a high-field avalanche zone propagates through the TRAPATT diode?
The depletion layer fills with a dense plasma of electrons and holes
What type of voltage waveform is typical for the TRAPATT mode of an avalanche diode?
Square wave
What happens to the diode current at point A?
The diode current is turned on
What happens to the electric field at point B to point C?
The electric field magnitude decreases
What happens at point D?
The voltage decreases
Why does it take a long time to remove the plasma?
Because the total plasma charge is large compared to the charge per unit time in the external circuit
What happens at point E?
The plasma is removed
What happens from point F to point G?
The diode charges up like a fixed capacitor
What happens to the diode current at point G?
The diode current goes to zero
Test your understanding of microwave devices with this quiz based on Lecture Ten of ECO 411 by Professor Dalia Elsheakh. The quiz covers topics such as IMPATT and TRAPATT diodes, their principles, and applications.
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