What is the advantage of using antenna arrays instead of using a single antenna of same type?

An antenna array can achieve higher gain (directivity), that is a narrower beam of radio waves, than could be achieved by a single element. In general, the larger the number of individual antenna elements used, the higher the gain and the narrower the beam.

What are the advantages of antenna arrays?

Advantages

• The signal strength increases.
• High directivity is obtained.
• Minor lobes are reduced much.
• High Signal-to-noise ratio is achieved.
• High gain is obtained.
• Power wastage is reduced.
• Better performance is obtained.

In which antenna arrays one antenna is stacked over another antenna?

Collinear Array In other words, one antenna is stacked over another antenna. The individual elements are fed with equal phase currents as is the case in the broadsided arrays. A collinear array is a broadside radiator, in which the direction of maximum radiation is perpendicular to the line of the antenna.

Why an antenna arrays are used long range applications?

Applications of Antenna Array These find major applications in the communication field where high signal strength is needed for long-distance transmission and reception. Hence, is generally used in satellite and wireless communication along with military and radar applications as well as astronomical study.

What are advantages and limitations of antenna array?

Advantages and Disadvantages

• high antenna gain with large side-lobe attenuation.
• very fast change of beam direction (in range of microseconds)
• high beam agility.
• arbitrary space scanning.
• freely selectable dwell time.
• multi-function operation by simultaneous generation of multiple beams.

What is array and why it is needed?

Arrays are used when there is a need to use many variables of the same type. It can be defined as a sequence of objects which are of the same data type. It is used to store a collection of data, and it is more useful to think of an array as a collection of variables of the same type.

What is broadside array and Endfire arrays?

An array is said to be End-fire array if the main beam is along the axis of the array. An array is said to be Broadside array if the main beam is perpendicular to the axis of the array.