Design a Dolph-Tschebyscheff broadside array of 8 elements, 25-dB sidelobe level, and with a  spacing of λ/2 between the elements to operate at 3 GHz. Choose a “rectangular patch” or a  "dipole" antenna as the array element that operates at 3 GHz. For the final antenna design,  determine the:  • Half-power beamwidth (in degrees). How much narrower or wider (in degrees) is this half-power beamwidth compared to that of a uniform array of the same number of elements and spacing? • How much smaller or larger (in dB) is the gain (in dB) compared to that of a uniform array of the same number of elements and spacing? Justify you answer. Do you expect it? Why?

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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.