Q:

# What is a binomial array in an antenna?

A:

A binomial array antenna is an array of non-uniform amplitudes in which the amplitude of the radiating sources is arranged according to the coefficient of successive terms of a binomial series. The binomial array acts as a multistate phase diversity antenna.

## Keep Learning

An antenna array is an assembly of individual radiating antennas in an electrical and geometrical configuration. It is arranged to produce a radiated field with particular radiation properties that cannot be achieved by using a single antenna; the performance of a single element antenna has limitations. In order to obtain higher directivity, low side lobes, narrow beam width and a preferred coverage pattern, antenna arrays are implemented. Binomial arrays possess the smallest side lobes.

When two in-phase plane waves reach the antenna from varied directions the resulting signal created is not necessarily the coherent sum of the incoming signals. The antenna radiation pattern consists of amplitude and phase properties. The phase characteristics vary as a function of the direction. The array antennas control these phase properties of the radiation pattern.

Binomial arrays implement directive beams having different phase patterns in comparison with each other. These beams can then be used to optimize the receiver system. In the designing of the binomial array, a genetic algorithm is used that generates the excitation amplitudes of the antenna array.

Sources:

## Related Questions

• A: Walkie talkies use radio waves transmitted and received by an antenna tuned to a single bandwidth, and then convert the electronic signals into sounds usin... Full Answer >
Filed Under:
• A: Make a homemade AM radio antenna by creating a loop of thin gauge insulated copper wire around an object used as a holder and attaching each end of the wir... Full Answer >
Filed Under:
• A: To program frequencies into a base model Uniden Bearcat Scanner, connect the antenna, power up the scanner, and press the "Prog" key until the letters "CH"... Full Answer >
Filed Under:
• A: An FM radio antenna can be made at home by cutting lengths of 16-gauge insulated wire and connecting it to the FM radio or an audio amplifier. Some radio s... Full Answer >
Filed Under:
PEOPLE SEARCH FOR