A parabolic dish antenna has a conical beam 2 wide. The directivity o – McqOptions

MCQOPTIONS

1.	A parabolic dish antenna has a conical beam 2 wide. The directivity of the antenna is approximately
A.	20 dB
B.	30 dB
C.	40 dB
D.	50 dB
Answer» E.

Discussion

No Comment Found

Related MCQs

Consider two fields E = 120 cos (106 t x) ay V/m and H = A cos (106 t x) az A/m The values of A and which will satisfy the Maxwell's equation in a linear isotropic homogeneous lossless medium with r = 8 and r = 2 will be A (in A/m) (in rad/m)A. 10.0105B. 10.042C. 20.0105D. 20.042
A plane wave is characterised by this wave is ^^ E = (0.5 x +xEj /2)ej t jk2
The phase velocity for the TE10 mode in an air filled rectangular waveguide is
A material has conductivity of 10 2 mho/m and a relative permittivity of 4 the frequency at which conduction current in the medium is equal to the displacement current is
The dominant mode in a rectangular waveguide is TE10 because this mode has
8-point charges of 1 nc each are located at the corners of a cube in free space that is 1 m on a side, then E at the centre is
If a plane electromagnetic wave satisfies the equation 2Ex = e2 2Ex z2 t2the wave propagates in
A stub having load impedance ZL and stub length / 2 then input impedance Zin is
A uniform plane wave travelling in air is incident on the plane boundary between air and another dielectric medium with r = 4. The reflection co-efficient for the normal incidence is
A uniform place wave in air impinges at 45 angle on a lossless dielectric material with dielectric constant r. The transmitted wave propagate in a 30 direction with respect to the normal the wave of r is