ECE :: Electromagnetic Field Thoery
-
A transmission line is feeding 1 watt of power to a horn antenna having a gain of 10 dB. The antenna is matched to the transmission line. The total power radiated by the horn antenna into the free space is
-
A parallel polarized wave is incident from air into paraffin having relative permittivity 3, the value of its Brewster angle is
-
In a conductor which of the following relations hold good?
-
The radiation resistance of a λ/16 wire dipole in free space will be nearly
-
Two identical antennas are placed in the θ = p/2 plane as shown in the figure. The elements have equal amplitude excitation with 180° polarity difference, operating of the far-zone resultant electric field strength normalized with that of a single element, both computed for φ = 0, is
-
Find the noise factor for an antenna at 27°C with equivalent noise temperature 30°K
-
The displacement flux density at a point on the surface of a perfect conductor is
= 2(ax - 3 az)c/m2 pointing away from the surface. The charge density at that point c/m2 will be -
Characteristic impedance of a transmission line is 50 Ω. Input impedance of the open circuited line.
Zoc = 100 + J150 Ω. When transmission line is short circuited, then value of the input impedance will be
Whatsapp
Facebook
= 101 
Pr = 10 watt.
.
.
.