Antennas Mock Test 5

10%

Question 1 of 10

1. In which of the following the secondary reflector faces the primary reflector?

Cassegrain

Corner reflector

Plane reflector

Gregorian

Question 1 of 10

Question 2 of 10

2. Which of the following is used to solve the mixed potential integrated equations?

MoM

FEM

FDTD

Jordan’s method

Question 2 of 10

Question 3 of 10

3. Which of the following is true regarding the coaxial coupling feed in Microstrip antenna?

It contains two different substrates separated by a ground plane

Inner conductor is connected to patch and outer conductor to ground plane

Outer conductor is connected to patch and inner conductor to ground plane

It is connected to patch just like a conducting strip

Question 3 of 10

Question 4 of 10

4. Which of the following condition holds good for minimum total aperture blocking in Cassegrain?

Area of sub-reflector is less than projected area of feed

Area of primary reflector and projected area of feed are equal

Area of sub-reflector greater than area of primary reflector

Area of sub-reflector and projected area of feed are equal

Question 4 of 10

Question 5 of 10

5. One of the disadvantages of the Microstrip antenna is excitation of surface waves

True

False

Question 5 of 10

Question 6 of 10

6. The bi-directional radiation disadvantage in slot antenna can be rectified with metallic cavity

False

True

Question 6 of 10

Question 7 of 10

7. In Microstrip antenna, the patch and feed line is photo etched on dielectric substrate

False

True

Question 7 of 10

Question 8 of 10

8. Microstrip slot antennas are complementary to the Microstrip dipole antennas

False

True

Question 8 of 10

Question 9 of 10

9. In Polarization-twist reflector, sub-reflector consists of a horizontal grating of wires.

True

False

Question 9 of 10

Question 10 of 10

10. One of the advantages of the Microstrip antenna compared to conventional microwave antenna is _________

No surface wave excitation

Low gain

High gain

Small size

Question 10 of 10