Microwave Communication
The aquadag coating on the inside of PPI tube is used

As a second anode and to prevent the build-up of secondary field
All of these
To shield the electron beam from unidirectional magnetic
To focus the beam of primary electrons

ANSWER DOWNLOAD EXAMIANS APP

Microwave Communication
The Gunn diode oscillator

Operates over a positive resistance characteristic
Depends on the formation of charge domain
Generates frequencies which are below 100 MHz
Is capable of generating continuous microwave power of the order of kilowatt

ANSWER DOWNLOAD EXAMIANS APP

Microwave Communication
As the electron beam moves through a klystron’s intercavity drift space

Phase modulation at the input cavity creates velocity modulation at the output cavity.
Velocity modulation at the input cavity creates density modulation at the output cavity
Frequency modulation at the input cavity creates velocity modulation at the output cavity
Density modulation at the input cavity creates velocity modulation at the output cavity

ANSWER DOWNLOAD EXAMIANS APP