An antenna array (or array antenna) is a set of multiple connected antennas which work together as a single antenna, to transmit or receive radio waves...

In antenna theory, a phased array usually means an electronically scanned array, a computer-controlled array of antennas which creates a beam of radio...

In telecommunications and radar, a reflective array antenna is a class of directive antennas in which multiple driven elements are mounted in front of...

telecommunications, a collinear antenna array (sometimes spelled colinear antenna array) is an array of dipole or quarter-wave antennas mounted in such a manner...

A log-periodic antenna (LP), also known as a log-periodic array or log-periodic aerial, is a multi-element, directional antenna designed to operate over...

disposed antenna array (CDAA), sometimes referred to as a circularly disposed dipole array (CDDA) or a wullenweber, is a large circular antenna array used...

Yagi–Uda antenna, or simply Yagi antenna, is a directional antenna consisting of two or more parallel resonant antenna elements in an end-fire array; these...

microstrip antennas consist of multiple patches in a two-dimensional array. The antenna is usually connected to the transmitter or receiver through foil microstrip...

and the antenna consists of slots in the waveguide; this is called a slotted waveguide antenna. Multiple slots act as a directive array antenna and can...

monopole antennas Array antennas Loop antennas Parabolic antenna Traveling wave antennas Log-periodic antenna Spiral antenna Horn antenna Adcock antenna Sector...

Digital antenna array (DAA) is a smart antenna with multi channels digital beamforming, usually by using fast Fourier transform (FFT). The development...

A passive electronically scanned array (PESA), also known as passive phased array, is an antenna in which the beam of radio waves can be electronically...

estimation performance. For example an array of radio antenna elements used for beamforming can increase antenna gain in the direction of the signal while...

active electronically scanned array (AESA) is a type of phased array antenna, which is a computer-controlled antenna array in which the beam of radio waves...

active antenna arrays composed of multiple antenna elements, typically arranged in a compact configuration. Unlike traditional omnidirectional antennas, which...

Smart antennas (also known as adaptive array antennas, digital antenna arrays, multiple antennas and, recently, MIMO) are antenna arrays with smart signal...

}}.\end{aligned}}} In an antenna array the directivity is a complicated calculation in the general case. For a linear array the directivity will always...

Multiple patch antennas on the same substrate (see image) called microstrip antennas, can be used to make high gain array antennas, and phased arrays in which...

Curtain arrays are a class of large multielement directional radio transmitting wire antennas, used in the short-wave radio bands. They constitute a type...

to be confused with antenna efficiency, which applies to aperture antennas such as a parabolic reflector or phased array, or antenna/aperture illumination...

The combined antenna then operates tolerably well on at least twice as many frequencies as a simple antenna. Array antennas Array antennas are made out...

The Adcock antenna is an antenna array consisting of four equidistant vertical elements which can be used to transmit or receive directional radio waves...

In an antenna array made of multiple conductive elements (typically metal rods), a driven element or active element (also called driven radiator or active...

low-gain antennas, dipoles are also employed as driven elements in more complex antenna designs such as the Yagi antenna and driven arrays. Dipole antennas (or...

antenna system consists of two separate identical specialized umbrella antenna arrays, designated the “north array” and the “south array”. Each array...

technique used in sensor arrays for directional signal transmission or reception. This is achieved by combining elements in an antenna array in such a way that...

The Low-Frequency Array (LOFAR) is a large radio telescope, with an antenna network located mainly in the Netherlands, and spreading across 7 other European...

multiple-outputs (antennas), similar to MIMO techniques used to increase the capacity of a radio link. MIMO radar is an advanced type of phased array radar employing...

dimensional array geometries. Array structure can be defined as a set of sensors that are spatially separated, e.g. radio antenna and seismic arrays. The sensors...

and conducting 24 intercepts. In addition, the radar antenna array is also doubled as an ELINT array, with a maximum range of over 850 km at 30,000 feet...