Q. What is the impedance of the folded dipole antenna?

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Q. Which of the following antennas produce a vertical radiation pattern?

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Q. What is the use of loading coil?

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Q. Why is top hat added to antennas?

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Q. In a parasitic array antenna, the conductors that are not connected to the transmission line is called as?

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Q. In a parasitic array the elements are shorted if they are connected to a conducting beam.

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Q. Parasitic element that is typically about 5 percent longer than the half-wave dipole-driven element is called _______

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Q. Why is the boom of the yagi antenna connected to a metal mast and electrical ground?

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Q. Which of the following is not one of the types of driven array antenna?

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Q. What is the length of the shortest element in the yagi antenna?

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Q. What happens if a satellite is launched vertically and released at its design altitude?

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Q. The satellite is accelerating as it orbits the earth.

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Q. Why does the orbit take the shape of an ellipse or circle?

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Q. The direction of orbit in the same direction of earth rotation is called ______

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Q. When is the speed of the satellite maximum in an elliptical orbit?

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Q. Satellites closer to the earth travel at lower speeds than satellites that are far away from earth.

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Q. The time period taken by the satellite to complete one orbit is called ________

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Q. The period of time that elapses between the successive passes of the satellite over a given meridian of earth longitude is called as _____________

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Q. What is the angle of inclination for a satellite following an equatorial orbit?

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Q. The angle between the line from the earth station’s antenna to the satellite and the line between the earth station’s antenna and the earth’s horizon is called as ___________

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