A parabolic satellite dish reflects signals to the dish’s focal
point. An antenna designer analyzed signals transmitted to a
satellite dish and obtained the probability density function
f(x)=cæ1- 1 x2öfor
0<x<2,whereXisthedistance(inmeters)fromthecentroidofthe ç 16
÷
èø
dish surface to a reflection point at which a signal arrives.
Determine the following:
Value of c that makes f (x) a valid probability density
function
?(? < 0.4
?(0.1<?<0.4
?(?)
?(?)
Design the pyramidal horn antenna which operates at WLAN point
to point frequency. The horn antenna must have directivity of 22
and HPBW of 30 degree in E plane. Then, determine the power gain
(in dB) and the HPBW in H plane of this antenna. Please give your
opinion about this antenna.
Plot the 3-Dimensional Radiation Pattern, Plot of Azimuth and
Elevation radiation pattern of the Horn antenna. Simulate it for
the 100 MHz? What is the Directivity of the antennas. What is the
Beam-width and Sidelobe levels?
You are designing a satellite communications system with the
following parameters:
Satellite parabolic antenna has a diameter of 1 meter
Earth Station parabolic antenna has a diameter of 2.5 meters
Operating frequency of the system is 4 GHz
Transmission system bandwidth of 106 Hz
Satellite transmitter power of 10 watts
Assume earth receiver operating at room temperature (294
kelvin)
a. What is the maximum distance the satellite can be from earth,
in kilometers, so that the SNRdb at the earth...
Explain the difference between parabolic dish and trough by
drawing both the schematics, Discuss which one is better and
why?
Neat and clean schematic diagram of both.