WorksheetsUnit III - Array
Total questions: 10
Worksheet time: 5mins
Set of antennas working together to produce certain radiation pattern in a particular direction
Array
Loop
Line
None of the above
Each antenna in an array is called an
(a)
antenna elements arranged over some planar surface
Linear
Conformal
planar
circular
In Uniform Linear Array, elements are fed with current of
unequal magnitude and with uniform phase shift
equal magnitude and with non- uniform phase shift
equal magnitude and with uniform phase shift
unequal magnitude and with non-uniform phase shift
for BSA, radiation pattern radiates in
Parallel to axis
perpendicular to axis
Radiation pattern of EFA is (a) directional pattern
Yadi Uda antenna is an example of
EFA
BSA
Collinear
Parasitic
Collinear arrays are arranged in ________________ fastion
Mounted end to end
stacked one over other
none of the above
both 1 & 2
In two element array, Waves from point source 1 reaches the far field point later than the waves from point source 2 because of the
path difference
isotropic sources
Phase angle in a two element array can be calculated as
2 * pi * path difference
pi * path difference
both are correct
none of the above
