10. Assume an antenna that radiates only into the upper hemisphere with normalised radiation intensity F(0,¢) = sin² (0). Find the corresponding: i) direction of maximum radiation; ii)pattern solid angle; iii) directivity; iv) half-power beamwidth in the y-z plane.

10. Assume an antenna that radiates only into the upper hemisphere with normalised radiation intensity F(0,¢) = sin² (0). Find the corresponding: i) direction of maximum radiation; ii)pattern solid angle; iii) directivity; iv) half-power beamwidth in the y-z plane.

Delmar's Standard Textbook Of Electricity

7th Edition

ISBN:9781337900348

Author:Stephen L. Herman

Publisher:Stephen L. Herman

Chapter14: Basic Trigonometry And Vectors

Section: Chapter Questions

Problem 1RQ: 1. Which trigonometric function is used to find the angle if the length of the hypotenuse and of the...

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Concept explainers

Antenna Characteristics

The antenna is an important concept in the domain of electronics and communication engineering. An antenna forms an integral part of many commonly used devices such as wireless modems, routers, game controllers, mobile phones, bluetooth devices, and so on. In simple terms, any wireless communication makes use of antennas to serve the purpose. An antenna, also known by the term 'arial', is an electrical device that converts electrical signals into electromagnetic waves or electromagnetic waves into electrical signals. An antenna contains a transmission line usually made up of co-axial cable, it then receives the signals and converts them into electromagnetic waves, which are then transmitted via space into their required destination. A communication system essentially makes use of two antennas, a transmission antenna, which converts electrical signals into electromagnetic waves, and a receiving antenna, which receives the electromagnetic waves and converts them back into electrical signals.

Question

10. Assume an antenna that radiates only into the upper hemisphere with normalised
radiation intensity F(0,¢) = sin² (0). Find the corresponding: i) direction of maximum
radiation; ii)pattern solid angle; iii) directivity; iv) half-power beamwidth in the y-z plane.

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