Question 1

Total resultant field obtained by the antenna array is given by which of following?

Accepted Answer

A) vector superposition of individual field from the element 
B) maximum field from individual sources in the array 
C) minimum field from individual sources in the array 
D) field from the individual source 
A) vector superposition of individual field from the element 
B) maximum field from individual sources in the array 
C) minimum field from individual sources in the array 
D) field from the individual source

Question 2

The free electron concentration in N-type GaAs is controlled by:

Accepted Answer

A) effective doping 
B) bias voltage 
C) drive current 
D) none of the mentioned 
A) effective doping 
B) bias voltage 
C) drive current 
D) none of the mentioned

Question 3

What is the progressive phase shift of the end-fire array?

Accepted Answer

A) 0 
B) 90 
C) 180 
D) 60 
A) 0 
B) 90 
C) 180 
D) 60

Question 4

GaAs is used in the fabrication of GUNN diodes because:

Accepted Answer

A) gaas is cost effective 
B) it less temperature sensitive 
C) it has low conduction band electrons 
D) less forbidden energy gap 
A) gaas is cost effective 
B) it less temperature sensitive 
C) it has low conduction band electrons 
D) less forbidden energy gap

Total resultant field obtained by the antenna array is given by which of following?

The free electron concentration in N-type GaAs is controlled by:

What is the progressive phase shift of the end-fire array?

GaAs is used in the fabrication of GUNN diodes because:

Antennas and Frequency Multipliers

Antenna and Transmission Line

Antenna Fundamentals and Characteristics

Microwave Devices and Their Operation: Gunn Diodes, Impatt Diodes, Klystron Tubes

RF Devices and Circuits

Microwave Network Noise Figure, Oscillator Circuits, and Negative Resistance Devices

Filters

Exam 4: Antenna Arrays, Power Amplifiers, and Gunn Diodes

Total resultant field obtained by the antenna array is given by which of following?

The free electron concentration in N-type GaAs is controlled by:

What is the progressive phase shift of the end-fire array?

GaAs is used in the fabrication of GUNN diodes because:

Antennas and Frequency Multipliers

Antenna and Transmission Line

Antenna Fundamentals and Characteristics

Microwave Devices and Their Operation: Gunn Diodes, Impatt Diodes, Klystron Tubes

RF Devices and Circuits

Microwave Network Noise Figure, Oscillator Circuits, and Negative Resistance Devices

Filters