(B)Element 8-14 Pulse Forming Networks Modulation

Question 1

The pulse developed by the modulator may have an amplitude greater than the supply voltage. This is possible by:

Answer 1

employing a resonant charging choke

Question 2

Pulse transformers and pulse-forming networks are commonly used to shape the microwave energy burst RADAR transmitter. The switching devices most often used in such pulse-forming circuits are:

Answer 2

SCRS and Thyratrons

Question 3

The purpose of the pulseforming network it to:

Answer 3

determine the width of the modulating pulses

Question 4

The shape and duration of the high voltage pulse delivered to the magnetron is established by

Answer 4

an artificial delay line

Question 5

Pulse forming networks are usually composed of the following:

Answer 5

series inductors and shunt capacitors

Question 6

An artifical transmission line is used for

Answer 6

determining the shape and duration of pulses