Antenna array, the Glossary

Table of Contents

1. 71 relations: Active electronically scanned array, Antenna (radio), Antenna feed, Aperture synthesis, Batwing antenna, Cell site, Collinear antenna array, Conformal antenna, Curtain array, Dipole antenna, Direction finding, Directional antenna, Directivity, Diversity scheme, Driven and parasitic elements, Electromagnetic interference, Gain (antenna), Helical antenna, High frequency, High-frequency Active Auroral Research Program, Horn antenna, Interferometry, Land mobile radio system, Lens antenna, Log-periodic antenna, Loop antenna, Main lobe, Microstrip antenna, MIMO, Monopole antenna, Null (radio), Omnidirectional antenna, Parabolic antenna, Passive electronically scanned array, Patch antenna, PAVE PAWS, Phase (waves), Phase shift module, Phased array, Plane wave, Pleumeur-Bodou, Printed circuit board, Quad antenna, Radiation pattern, Radio astronomy, Radio receiver, Radio telescope, Radio wave, Reconfigurable antenna, Reflective array antenna, ... Expand index (21 more) »

2. Microwave transmission

Active electronically scanned array

An 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 can be electronically steered to point in different directions without moving the antenna.

See Antenna array and Active electronically scanned array

Antenna (radio)

In radio engineering, an antenna (American English) or aerial (British English) is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver. Antenna array and antenna (radio) are antennas (radio).

See Antenna array and Antenna (radio)

Antenna feed

A radio transmitter or receiver is connected to an antenna which emits or receives the radio waves.

See Antenna array and Antenna feed

Aperture synthesis

Aperture synthesis or synthesis imaging is a type of interferometry that mixes signals from a collection of telescopes to produce images having the same angular resolution as an instrument the size of the entire collection.

See Antenna array and Aperture synthesis

Batwing antenna

A batwing or super turnstile antenna is a broadcasting antenna used at VHF and UHF frequencies, named for its distinctive shape resembling a bat wing or bow tie. Antenna array and batwing antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Batwing antenna

Cell site

A cell site, cell phone tower, cell base tower, or cellular base station is a cellular-enabled mobile device site where antennas and electronic communications equipment are placed (typically on a radio mast, tower, or other raised structure) to create a cell, or adjacent cells, in a cellular network.

See Antenna array and Cell site

Collinear antenna array

In telecommunications, a collinear antenna array (sometimes spelled colinear antenna array) is an array of dipole or quarter-wave antennas mounted in such a manner that the corresponding elements of each antenna are parallel and collinear; that is, they are located along a common axis. Antenna array and collinear antenna array are antennas (radio) and radio frequency antenna types.

See Antenna array and Collinear antenna array

Conformal antenna

In radio communication and avionics a conformal antenna or conformal array is a flat array antenna which is designed to conform or follow some prescribed shape, for example a flat curving antenna which is mounted on or embedded in a curved surface. Antenna array and conformal antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Conformal antenna

Curtain array

Curtain arrays, a class of large multielement directional radio transmitting wire antennas, are used in the short-wave radio bands. Antenna array and Curtain array are antennas (radio) and radio frequency antenna types.

See Antenna array and Curtain array

Dipole antenna

In radio and telecommunications a dipole antenna or doublet is one of the two simplest and most widely-used types of antenna; the other is the monopole. Antenna array and dipole antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Dipole antenna

Direction finding

Direction finding (DF), or radio direction finding (RDF), is the use of radio waves to determine the direction to a radio source.

See Antenna array and Direction finding

Directional antenna

A directional antenna or beam antenna is an antenna which radiates or receives greater radio wave power in specific directions. Antenna array and directional antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Directional antenna

Directivity

In electromagnetics, directivity is a parameter of an antenna or optical system which measures the degree to which the radiation emitted is concentrated in a single direction. Antenna array and directivity are antennas (radio).

See Antenna array and Directivity

Diversity scheme

In telecommunications, a diversity scheme refers to a method for improving the reliability of a message signal by using two or more communication channels with different characteristics. Antenna array and diversity scheme are antennas (radio).

See Antenna array and Diversity scheme

Driven and parasitic elements

In an antenna array made of multiple conductive elements (typically metal rods), a driven element or active element (also called driven radiator or active radiator) is electrically connected to the receiver or transmitter while a parasitic element (or passive radiator) is not. Antenna array and driven and parasitic elements are antennas (radio).

See Antenna array and Driven and parasitic elements

Electromagnetic interference

Electromagnetic interference (EMI), also called radio-frequency interference (RFI) when in the radio frequency spectrum, is a disturbance generated by an external source that affects an electrical circuit by electromagnetic induction, electrostatic coupling, or conduction.

See Antenna array and Electromagnetic interference

Gain (antenna)

In electromagnetics, an antenna's gain is a key performance parameter which combines the antenna's directivity and radiation efficiency. Antenna array and gain (antenna) are antennas (radio).

See Antenna array and Gain (antenna)

Helical antenna

A helical antenna is an antenna consisting of one or more conducting wires wound in the form of a helix. Antenna array and helical antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Helical antenna

High frequency

High frequency (HF) is the ITU designation for the band of radio waves with frequency between 3 and 30 megahertz (MHz).

See Antenna array and High frequency

High-frequency Active Auroral Research Program

The High-frequency Active Auroral Research Program (HAARP) is a University of Alaska Fairbanks program which researches the ionosphere – the highest, ionized part of Earth's atmosphere.

See Antenna array and High-frequency Active Auroral Research Program

Horn antenna

A horn antenna or microwave horn is an antenna that consists of a flaring metal waveguide shaped like a horn to direct radio waves in a beam. Antenna array and horn antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Horn antenna

Interferometry

Interferometry is a technique which uses the interference of superimposed waves to extract information.

See Antenna array and Interferometry

Land mobile radio system

A land mobile radio system (LMRS) is a person-to-person voice communication system consisting of two-way radio transceivers (an audio transmitter and receiver in one unit) which can be stationary (base station units), mobile (installed in vehicles), or portable (handheld transceivers e.g. "walkie-talkies").

See Antenna array and Land mobile radio system

Lens antenna

A lens antenna is a directional antenna that uses a shaped piece of microwave-transparent material to bend and focus microwaves by refraction, as an optical lens does for light. Antenna array and lens antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Lens antenna

Log-periodic antenna

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 a wide band of frequencies. Antenna array and log-periodic antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Log-periodic antenna

Loop antenna

A loop antenna is a radio antenna consisting of a loop or coil of wire, tubing, or other electrical conductor, that for transmitting is usually fed by a balanced power source or for receiving feeds a balanced load. Antenna array and loop antenna are radio frequency antenna types.

See Antenna array and Loop antenna

Main lobe

In a radio antennas, the main lobe or main beam is the region of the radiation pattern containing the highest power or exhibiting the greatest field strength.

See Antenna array and Main lobe

Microstrip antenna

In telecommunication, a microstrip antenna (also known as a printed antenna) usually is an antenna fabricated using photolithographic techniques on a printed circuit board (PCB). Antenna array and microstrip antenna are microwave technology and radio frequency antenna types.

See Antenna array and Microstrip antenna

MIMO

In radio, multiple-input and multiple-output (MIMO) is a method for multiplying the capacity of a radio link using multiple transmission and receiving antennas to exploit multipath propagation.

See Antenna array and MIMO

Monopole antenna

A monopole antenna is a class of radio antenna consisting of a straight rod-shaped conductor, often mounted perpendicularly over some type of conductive surface, called a ground plane. Antenna array and monopole antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Monopole antenna

Null (radio)

In radio electronics, a null is a direction in an antenna's radiation pattern where the antenna radiates almost no radio waves, so the far field signal strength is a local minimum. Antenna array and null (radio) are antennas (radio).

See Antenna array and Null (radio)

Omnidirectional antenna

In radio communication, an omnidirectional antenna is a class of antenna which radiates equal radio power in all directions perpendicular to an axis (azimuthal directions), with power varying with angle to the axis (elevation angle), declining to zero on the axis. Antenna array and omnidirectional antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Omnidirectional antenna

Parabolic antenna

A parabolic antenna is an antenna that uses a parabolic reflector, a curved surface with the cross-sectional shape of a parabola, to direct the radio waves. Antenna array and parabolic antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Parabolic antenna

Passive electronically scanned array

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 steered to point in different directions (that is, a phased array antenna), in which all the antenna elements are connected to a single transmitter (such as a magnetron, a klystron or a travelling wave tube) and/or receiver.

See Antenna array and Passive electronically scanned array

Patch antenna

A patch antenna is a type of antenna with a low profile, which can be mounted on a surface. Antenna array and patch antenna are antennas (radio), microwave technology and radio frequency antenna types.

See Antenna array and Patch antenna

PAVE PAWS

PAVE PAWS (PAVE Phased Array Warning System) is a complex Cold War early warning radar and computer system developed in 1980 to "detect and characterize a sea-launched ballistic missile attack against the United States".

See Antenna array and PAVE PAWS

Phase (waves)

In physics and mathematics, the phase (symbol φ or ϕ) of a wave or other periodic function F of some real variable t (such as time) is an angle-like quantity representing the fraction of the cycle covered up to t. It is expressed in such a scale that it varies by one full turn as the variable t goes through each period (and F(t) goes through each complete cycle).

See Antenna array and Phase (waves)

Phase shift module

A phase shift module is a microwave network module which provides a controllable phase shift of the RF signal. Antenna array and phase shift module are microwave technology.

See Antenna array and Phase shift module

Phased array

In antenna theory, a phased array usually means an electronically scanned array, a computer-controlled array of antennas which creates a beam of radio waves that can be electronically steered to point in different directions without moving the antennas. Antenna array and phased array are antennas (radio) and radio frequency antenna types.

See Antenna array and Phased array

Plane wave

In physics, a plane wave is a special case of a wave or field: a physical quantity whose value, at any moment, is constant through any plane that is perpendicular to a fixed direction in space.

See Antenna array and Plane wave

Pleumeur-Bodou

Pleumeur-Bodou is a commune in the Côtes-d'Armor department of Brittany in northwestern France.

See Antenna array and Pleumeur-Bodou

Printed circuit board

A printed circuit board (PCB), also called printed wiring board (PWB), is a medium used to connect or "wire" components to one another in a circuit.

See Antenna array and Printed circuit board

Quad antenna

A quad antenna is a type of directional wire radio antenna used on the HF and VHF bands. Antenna array and quad antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Quad antenna

Radiation pattern

In the field of antenna design the term radiation pattern (or antenna pattern or far-field pattern) refers to the directional (angular) dependence of the strength of the radio waves from the antenna or other source. Antenna array and radiation pattern are antennas (radio).

See Antenna array and Radiation pattern

Radio astronomy

Radio astronomy is a subfield of astronomy that studies celestial objects at radio frequencies.

See Antenna array and Radio astronomy

Radio receiver

In radio communications, a radio receiver, also known as a receiver, a wireless, or simply a radio, is an electronic device that receives radio waves and converts the information carried by them to a usable form.

See Antenna array and Radio receiver

Radio telescope

A radio telescope is a specialized antenna and radio receiver used to detect radio waves from astronomical radio sources in the sky.

See Antenna array and Radio telescope

Radio wave

Radio waves are a type of electromagnetic radiation with the lowest frequencies and the longest wavelengths in the electromagnetic spectrum, typically with frequencies below 300 gigahertz (GHz) and wavelengths greater than, about the diameter of a grain of rice.

See Antenna array and Radio wave

Reconfigurable antenna

A reconfigurable antenna is an antenna capable of modifying its frequency and radiation properties dynamically, in a controlled and reversible manner. Antenna array and reconfigurable antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Reconfigurable antenna

Reflective array antenna

In telecommunications and radar, a reflective array antenna is a class of directive antennas in which multiple driven elements are mounted in front of a flat surface designed to reflect the radio waves in a desired direction. Antenna array and reflective array antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Reflective array antenna

Refraction

In physics, refraction is the redirection of a wave as it passes from one medium to another.

See Antenna array and Refraction

Resonator

A resonator is a device or system that exhibits resonance or resonant behavior.

See Antenna array and Resonator

Satellite television

Satellite television is a service that delivers television programming to viewers by relaying it from a communications satellite orbiting the Earth directly to the viewer's location.

See Antenna array and Satellite television

SCR-270

The SCR-270 was one of the first operational early-warning radars.

See Antenna array and SCR-270

Sector antenna

A sector antenna is a type of directional microwave antenna with a sector-shaped radiation pattern. Antenna array and sector antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Sector antenna

Sidelobes

In antenna engineering, sidelobes are the lobes (local maxima) of the far field radiation pattern of an antenna or other radiation source, that are not the main lobe.

See Antenna array and Sidelobes

Smart antenna

Smart antennas (also known as adaptive array antennas, digital antenna arrays, multiple antennas and, recently, MIMO) are antenna arrays with smart signal processing algorithms used to identify spatial signal signatures such as the direction of arrival (DOA) of the signal, and use them to calculate beamforming vectors which are used to track and locate the antenna beam on the mobile/target. Antenna array and smart antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Smart antenna

Specular reflection

Specular reflection, or regular reflection, is the mirror-like reflection of waves, such as light, from a surface.

See Antenna array and Specular reflection

Stripline

In electronics, stripline is a transverse electromagnetic (TEM) transmission line medium invented by Robert M. Barrett of the Air Force Cambridge Research Centre in the 1950s. Antenna array and stripline are microwave technology.

See Antenna array and Stripline

Superposition principle

The superposition principle, also known as superposition property, states that, for all linear systems, the net response caused by two or more stimuli is the sum of the responses that would have been caused by each stimulus individually.

See Antenna array and Superposition principle

Television antenna

A television antenna, also called a television aerial (in British English), is an antenna specifically designed for use with a television receiver (TV) to receive terrestrial over-the-air (OTA) broadcast television signals from a television station. Antenna array and television antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Television antenna

Television station

A television station is a set of equipment managed by a business, organisation or other entity such as an amateur television (ATV) operator, that transmits video content and audio content via radio waves directly from a transmitter on the earth's surface to any number of tuned receivers simultaneously.

See Antenna array and Television station

Total active reflection coefficient

The total active reflection coefficient (TARC) within mathematics and physics scattering theory, relates the total incident power to the total outgoing power in an N-port microwave component. Antenna array and total active reflection coefficient are antennas (radio).

See Antenna array and Total active reflection coefficient

Transmitter

In electronics and telecommunications, a radio transmitter or just transmitter (often abbreviated as XMTR or TX in technical documents) is an electronic device which produces radio waves with an antenna with the purpose of signal transmission up to a radio receiver.

See Antenna array and Transmitter

Turnstile antenna

A turnstile antenna, or crossed-dipole antenna, is a radio antenna consisting of a set of two identical dipole antennas mounted at right angles to each other and fed in phase quadrature; the two currents applied to the dipoles are 90° out of phase. Antenna array and turnstile antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Turnstile antenna

Ultra high frequency

Ultra high frequency (UHF) is the ITU designation for radio frequencies in the range between 300 megahertz (MHz) and 3 gigahertz (GHz), also known as the decimetre band as the wavelengths range from one meter to one tenth of a meter (one decimeter).

See Antenna array and Ultra high frequency

Very high frequency

Very high frequency (VHF) is the ITU designation for the range of radio frequency electromagnetic waves (radio waves) from 30 to 300 megahertz (MHz), with corresponding wavelengths of ten meters to one meter.

See Antenna array and Very high frequency

Very Large Array

The Karl G. Jansky Very Large Array (VLA) is a centimeter-wavelength radio astronomy observatory in the southwestern United States.

See Antenna array and Very Large Array

Very-long-baseline interferometry

Very-long-baseline interferometry (VLBI) is a type of astronomical interferometry used in radio astronomy.

See Antenna array and Very-long-baseline interferometry

Wave interference

In physics, interference is a phenomenon in which two coherent waves are combined by adding their intensities or displacements with due consideration for their phase difference.

See Antenna array and Wave interference

Yagi–Uda antenna

A 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 elements are most often metal rods (or discs) acting as half-wave dipoles. Antenna array and Yagi–Uda antenna are antennas (radio) and radio frequency antenna types.

See Antenna array and Yagi–Uda antenna

See also

Microwave transmission

• AN/TRC-97
• Antenna array
• British Telecom microwave network
• Defected ground structure
• Jungfraujoch radio relay station
• Longitudinal-section mode
• Microwave transmission
• Mode (electromagnetism)
• Moscow Signal
• Multi-Choice TV
• Peryton (astronomy)
• TD-2
• Trans Canada Microwave
• Wireless Set Number 10
• Wireless power transfer

References

[1] https://en.wikipedia.org/wiki/Antenna_array

Also known as Antenna array (electromagnetic), Antenna arrays, Antenna element, Array antenna, Array antennas, Directional array, Planar array, Planar array radar, Planner array radar.

, Refraction, Resonator, Satellite television, SCR-270, Sector antenna, Sidelobes, Smart antenna, Specular reflection, Stripline, Superposition principle, Television antenna, Television station, Total active reflection coefficient, Transmitter, Turnstile antenna, Ultra high frequency, Very high frequency, Very Large Array, Very-long-baseline interferometry, Wave interference, Yagi–Uda antenna.