Related Questions

A helical antenna is used for satellite tracking because of _________
A helical antenna is used for satellite tracking due to its __________
Why a helical antenna is used for satellite tracking?
In the following passage, some of the words have been left out. Read the passage carefully and select the correct answer for the given blank out of the four alternatives. Starting late-2014, scientists of the National Aeronautics and Space Administration (NASA) working _______ satellite data tracking the rift found that the defect in the Larsen C was growing _________. By 2016 the crack became 70 miles long and 300 feet ________. By January 2017 it measured 109 miles in length and 1,500metres in breadth. On July 12, it broke. The broken shelf, now __________ official iceberg, was massive, indeed the ____________-ever such iceberg, weighing 1.1trillion tons and measuring 2,200 square miles. Administration (NASA) working _______ satellite data tracking
What is the pitch angle of the helical antenna to become a loop antenna?
What is the pitch angle of the helical antenna to become a linear antenna?
The radiation pattern of the helical antenna is a combination of small dipole and loop antenna.
A rectangular horn antenna has an aperture area of 3λ × 2λ. If the aperture efficiency of an antenna is 90%, then the directivity of the antenna is:
A radio link has 15 W transmitter connected to an antenna of 2.5 m2 effective aperture at 5 GHz. The receiving antenna has an effective aperture of 0.5 m2 and is located at a 15 Km line of sight distance from transmitting antenna. Assuming lossless, matched antennas, the power delivered to the receiver is:
The electrical size of antenna is increased by antenna array to avoid size lobes compared to single antenna.