What is microstrip array antenna?
A microstrip antenna array is one of the simplest forms of antennas available. The antenna consists of a single printed circuit board with an RF connector and perhaps an absorptive load. Microstrip antennas can be flat or curved to suit the structure to which they are mounted.
What benefit does an array bring over a single patch antenna?
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 different types of feed arrangements in printed antenna arrays?
Arrays can be fed in many ways, but the two general types of feed arrangement for microstrip patch arrays are series feed and corporate feed. Microstrip patch array in a series feed network is fed by a single transmission line, whereas patch array in a corporate feed network is fed by multiple transmission lines.
Why is antenna array needed?
An antenna array is used to increase overall gain, provide diversity reception, cancel out interference, maneuver the array in a particular direction, gage the direction of arrival of incoming signals, and to maximize the Signal to Interference plus Noise Ratio (SINR).
What is pattern multiplication?
The pattern multiplication principle states that the radiation patterns of an array of N identical antennas is equal to the product of the element pattern Fe( ) (pattern of one of the antennas) and the array pattern Fa( ), where Fa( ) is the pattern obtained upon replacing all of the actual antennas with isotropic …
How many types of antenna array are there?
For a finite dipole, it is just one—the length. But we need more control than that to custom design the radiation pattern for more advanced applications. We will consider two main types of antenna arrays: phased arrays and binomial arrays (which might be better called amplitude arrays).