what is the diameter in nautical miles of the coverage area of a spot antenna on a geosynchronous satellite that has a beamwidth of 1.5 degrees?
The diameter of the coverage area is:

r is the distance of the geosynchronous orbit (35876Km)
1Km = 0.539957 Nautical miles


what is the diameter in nautical miles of the coverage area of a spot antenna on...
1) Calculate the 3db beamwidth for a uniformly illuminated circular aperture or diameter (3pts) d-45cm and wavelength of -4cm 2) Calculate the 3db beamwidth for an antenna with tapered illumination with diameter -2cm d-35cm and application wavelength (3pts) Calculate gain of the main lobe of an antenna using the following parameters: (Spts) 3) Wavelength of the radiated energy 3.5cm Effective area of the aperture Scm2
1) Calculate the 3db beamwidth for a uniformly illuminated circular aperture or diameter (3pts) d-45cm...
A collimated Gaussian light beam is focused to a spot by a lens. The diameter (2w) of the input beam is 100 microns. What is the diameter of the waist (2wo) of the focused spot if the wavelength of the light is 1550 nm and the focal length of the lens is 1.5 mm?
A horn antenna with an area of 4π cm² receives 8 µW/m² intensity from a distance transmitter. What intensity would it receive from reflection off a one-meter-diameter parabolic dish?
ax2 about the y - Consider a satellite formed by rotating the y = diameter of 10m and a maximum depth of 2m. axis. The satellite has a 1. What is the length, along its surface, of the satellite at the widest point? а. b. What is the surface area of the satellite?
ax2 about the y - Consider a satellite formed by rotating the y = diameter of 10m and a maximum depth of 2m. axis. The satellite has...
2. What is the escape speed from m? a planet of mass M and radius R if M-3.2x 1023 kg and R 2.4 x 100 3. Two satellites are placed in geosynchronous orbits, orbits with a period of 24 hours, where each satellite hovers over a spot on the Earth's equator. Satellite B has three times the mass of satellite A. Wh is the relationship between the magnitudes of the gravitational forces FA and FB of the Earth on the...
12.38. A lossless circular aperture antenna has a gain of 15 dB and overall physical area of 25 cm^2. The frequency of operation is 10 GHz. (a) What is the aperture efficiency of the antenna (in %)? (b) What is the power PL delivered to a matched load given that the power density of the incident wave at the antenna aperture is 30 mW/cm^2? Assume ideal conditions (no losses).
Earth has a surface area of 181 million square miles. What is its area in each unit? square kilometers square megameters square decimeters
12.38. A lossless circular aperture antenna has a gain of 15 dB and overall physical area of 25 cm^2. The frequency of operation is 10 GHz. (a) What is the aperture efficiency of the antenna (in %)? (b) What is the power PL delivered to a matched load given that the power density of the incident wave at the antenna aperture is 30 mW/cm^2? Assume ideal conditions (no losses).
Earth has a surface area of 170 million square miles. What is its area in each unit? square kilometers Express the surface area to three significant figures. square megameters Express the surface area to three significant figures. square decimeters Express the surface area to three significant figures.
10. Assuming that the Earth has a diameter of 7920 miles and a volume 49 times that of the moon, what is the diameter of the moon? (The volume of a sphere is V = (4/3)*pi*(radius)')