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Set of multiple antennas which work together
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
Antenna_array
Array of antennas creating a steerable beam
In antenna theory, a phased array usually means an electronically scanned array, a computer-controlled array of antennas which creates a beam of radio
Phased_array
Circular antenna for radio direction finding
disposed antenna array (CDAA), sometimes referred to as a circularly disposed dipole array (CDDA) or a wullenweber, is a large circular antenna array used
Circularly disposed antenna array
Circularly_disposed_antenna_array
Antenna system type
telecommunications, a collinear antenna array (sometimes spelled colinear antenna array) is an array of dipole or quarter-wave antennas mounted in such a manner
Collinear_antenna_array
Type of radio antenna
Yagi–Uda antenna, or Yagi antenna, is a directional antenna consisting of two or more parallel resonant antenna elements in an end-fire array; these elements
Yagi–Uda_antenna
Multi-element, directional antenna useable over a wide band of frequencies
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
Log-periodic_antenna
Device that transmits and receives radio waves
monopole antennas Array antennas Loop antennas Parabolic antenna Traveling wave antennas Log-periodic antenna Spiral antenna Horn antenna Adcock antenna Sector
Antenna_(radio)
Active antennas that are designed to resist radio jamming
active antenna arrays composed of multiple antenna elements, typically arranged in a compact configuration. Unlike traditional omnidirectional antennas, which
Controlled reception pattern antenna
Controlled_reception_pattern_antenna
Class of directive antennas
In telecommunications and radar, a reflective array antenna is a class of directive antennas in which multiple driven elements are mounted in front of
Reflective_array_antenna
Type of phased-array radar
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 electronically scanned array
Active_electronically_scanned_array
Class of large multielement directional wire radio transmitting antennas
Curtain arrays are a class of large multielement directional radio transmitting wire antennas, used in the short-wave radio bands. They constitute a type
Curtain_array
Type of antenna
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
Passive electronically scanned array
Passive_electronically_scanned_array
Antenna fabricated using photolithographic techniques
microstrip antennas consist of multiple patches in a two-dimensional array. The antenna is usually connected to the transmitter or receiver through foil microstrip
Microstrip_antenna
Signal processing technique for sensor arrays
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
Beamforming
Smart antenna with multi channels digital beamforming
Digital antenna array (DAA) is a smart antenna with multi channels digital beamforming, usually by using fast Fourier transform (FFT). The development
Digital_antenna_array
Type of antenna used for various communication
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
Slot_antenna
Antenna consisting of two rod-shaped conductors
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
Dipole_antenna
Use of multiple antennas in radio
transmit antennas, with all streams in the same frequency channel. These co-channel, mutually interfering streams arrive at the receiver's antenna array, each
MIMO
Russian circularly disposed antenna array in Kaliningrad enclave
Черняхо́вск круг) is a close-to-completed, 1,600 m wide circularly disposed antenna array (CDAA) located circa 5 km southeast of Chernyakhovsk air base in the
Chernyakhovsk_CDAA
Project to analyze the ionosphere
operating in 1999 as a 6 × 8 (= 48) antenna array at 0.96 MW, expanding in 2007 to a 12 × 15 (=180) array of 180 antennas with 360 radio transmitters at 9
High-frequency Active Auroral Research Program
High-frequency_Active_Auroral_Research_Program
Type of antenna with a low profile
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
Patch_antenna
Radar with multiple antennas for transmitting and receiving
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
MIMO_radar
Measurement of the direction from which a received signal was transmitted
of all U-boats sunk during the war. Modern systems often used phased array antennas to allow rapid beamforming for highly accurate results, and are part
Direction_finding
Type of radio antenna array, used mainly for early radio navigation
The Adcock antenna is an antenna array consisting of four equidistant vertical elements which can be used to transmit or receive directional radio waves
Adcock_antenna
Radar system used in air traffic control
used an antenna known as a hogtrough. The width of the horizontal antenna array and in consequence the antenna gain varied, requiring large arrays with a
Secondary_surveillance_radar
Radio aerial composed of directly-connected and passive 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
Driven_and_parasitic_elements
Rectangular two-element array antenna
The Moxon antenna or Moxon rectangle is a simple and mechanically rugged two-element parasitic array, single-frequency antenna. It takes its name from
Moxon_antenna
Airborne early warning and control aircraft
for integration with the Indian-designed antenna. In June 2010, it was reported that the Active Array Antenna Unit (AAAU), developed by DRDO's Centre for
Netra_AEW&C
Radio astronomy observatory in New Mexico, US
interferometry with up to 351 independent baselines: in essence, the array acts as a single antenna with a variable diameter. The angular resolution that can be
Very_Large_Array
Antenna arrays with smart signal processing algorithms
Smart antennas (also known as adaptive array antennas, digital antenna arrays, multiple antennas and, recently, MIMO) are antenna arrays with smart signal
Smart_antenna
Function in the theory of antennas
In the study of antennas, the array factor is a mathematical function that describes the signal of an antenna array as a combination of the signals of
Array_factor
Radio telescope network located mainly in the Netherlands
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
Low-Frequency_Array
Type of aircraft radar
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
Multi-role Electronically Scanned Array
Multi-role_Electronically_Scanned_Array
Antenna constructions for different applications
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
Antenna_types
Telecommunications performance metric
to be confused with antenna efficiency, which applies to aperture antennas such as a parabolic reflector or phased array, or antenna/aperture illumination
Radiation_efficiency
Group of sensors used to increase gain or dimensionality over a single sensor
estimation performance. For example an array of radio antenna elements used for beamforming can increase antenna gain in the direction of the signal while
Sensor_array
2024 aviation accident in South Korea
crashed into a berm encasing a concrete structure that supported an antenna array for the instrument landing system (ILS). The collision killed all 175
Jeju_Air_Flight_2216
Measure of how much of an antenna's signal is transmitted in one direction
}}.\end{aligned}}} In an antenna array the directivity is a complicated calculation in the general case. For a linear array the directivity will always
Directivity
United States circularly disposed HF antenna array
The AN/FLR-9 is a type of very large circularly disposed antenna array, built at eight locations during the Cold War for HF/DF direction finding of high
AN/FLR-9
Type of beamforming network
A Butler matrix is a beamforming network used to feed a phased array of antenna elements. Its purpose is to control the direction of a beam, or beams,
Butler_matrix
Antenna capable of modifying its frequency and radiation properties dynamically
liquids (dielectric liquid or liquid metal). Antenna (radio) Beam steering Phased array RF MEMS Smart antenna Rodrigo, D.; Cetiner, B.A.; Jofre, L. (2014)
Reconfigurable_antenna
American military surveillance plane
flying over the Gulf of Mexico provide data to the aircraft's fixed antenna array, which records and receives it. It can transmit two UHF frequencies
De Havilland Canada E-9 Widget
De_Havilland_Canada_E-9_Widget
VLF radio transmitter operated by the US Navy
antenna system consists of two separate identical specialized umbrella antenna arrays, designated the "north array" and the "south array". Each array
VLF_Transmitter_Cutler
beamforming for the first time in 1905. Braun created a phased array by positioning three antennas to reinforce radiation in one direction and diminish radiation
History_of_smart_antennas
Topics referred to by the same term
many variants thereof Wi-Fi array, a wireless networking device Antenna array Array gain, a telecommunications parameter Array processing of multichannel
Array
US Navy circularly disposed HF/DF antenna array
The AN/FRD-10 is a United States Navy circularly disposed antenna array (CDAA), built at a number of locations during the Cold War for high frequency
AN/FRD-10
Area of research in signal processing
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
Array_processing
phased array or slotted waveguide antenna, squint refers to the angle that the transmission is offset from the normal of the plane of the antenna. In simple
Squint_(antenna)
Radio antenna which has greater performance in specific alignments
a high-gain antenna; the most common are parabolic antennas, helical antennas, Yagi-Uda antennas, and phased arrays of smaller antennas of any kind.
Directional_antenna
Earth station in Franconia
The four 16.4-metre antennas are controlled by two shelter boxes located within the field. This antenna array contains an antenna from 1991 with a diameter
Fuchsstadt_Earth_Station
Open-source imaging radio telescope
antenna array, RF Front End, radio Hub and basestation. The antenna array consists of 24 antennas arranged on four identical 'tiles' with 6 antennas each
Transient Array Radio Telescope
Transient_Array_Radio_Telescope
Geolocation system
interfaces, which use multiple antennas, it is possible to estimate the AoA of the multipath signals received at the antenna arrays in the access points, and
Wi-Fi_positioning_system
Military training facility in California, United States
and in 1965 it received its well-known Wullenweber Circular Disposed Antenna Array, an AN/FRD-10. In 1971, it was renamed as the Naval Radio Receiving
Silver Strand Training Complex
Silver_Strand_Training_Complex
2003 US experimental Doppler radar system
in azimuth and elevation. By contrast, phased arrays are an antenna array, composed of many small antennas on a flat panel, which steer the radar beam electronically
Multifunction Phased Array Radar
Multifunction_Phased_Array_Radar
four 34 m antennas can provide the equivalent of one 70 m dish. As many as eight antennas can be arrayed at once. NASA first used antenna arraying in the
List of antennas in NASA's Deep Space Network
List_of_antennas_in_NASA's_Deep_Space_Network
Cable or conductor connecting a radio transmitter to an antenna
receiver is connected to an antenna which emits or receives the radio waves.[AI-retrieved source] The antenna feed system or antenna feed is the cable or conductor
Antenna_feed
Radio telescope array
The Deep Synoptic Array (DSA) is a radio telescope array that will contain 1,650 steerable 6.15-metre (20 ft 2 in) parabolic antennas that observe the
Deep_Synoptic_Array
Soviet and Ukrainian scientist
tensor-matrix theory of digital antenna arrays (DAAs), N-OFDM and other theories in fields of radar systems, smart antennas for wireless communications and
Vadym_Slyusar
Class of antennas
Metamaterial antennas are a class of antennas which use metamaterials to increase performance of miniaturized (electrically small) antenna systems. Their
Metamaterial_antenna
L-band AESA 3D air search radar
variations on the array antenna were being actively explored by many designers. In these systems, a large number of small antennas work together to produce
AN/FPS-117
Width of an electromagnetic beam
arbitrary antenna arrays. Defining the array manifold as the complex response of the m {\displaystyle \mathrm {m} } element antenna array as A ( θ )
Beam_diameter
Radio communications technique
of 144 MHz EME antenna array at WA6PY in California, U.S. A dish antenna for microwave EME work at WA6PY, California, U.S. A dish antenna for UHF EME at
Earth–Moon–Earth communication
Earth–Moon–Earth_communication
Long distance radar technology
local horizon. Making a beam at this angle generally requires enormous antenna arrays and highly reflective ground along the path the signal is being sent
Over-the-horizon_radar
Non-commercial use of the radio spectrum
also affect transmissions: The United Kingdom measures at the point the antenna is connected to the signal feed cable, which means the radio system may
Amateur_radio
66-telescope radio observatory in Chile
centimeter-wavelength Very Large Array (VLA) site in New Mexico, United States. The high sensitivity is mainly achieved through the large number of antenna dishes that make
Atacama Large Millimeter Array
Atacama_Large_Millimeter_Array
Monopole antenna
An umbrella antenna is a capacitively top-loaded wire monopole antenna, consisting in most cases of a mast fed at the ground end, to which a number of
Umbrella_antenna
Surface on an antenna in electromagnetics
In electromagnetics and antenna theory, the aperture of an antenna is defined as "A surface, near or on an antenna, on which it is convenient to make assumptions
Aperture_(antenna)
Naval 3D PESA Aegis radar system
subsequent SPY-1 radars. SPY-1A has four antenna arrays in two separate deckhouses, with each antenna array containing 148 modules. Each module contains
AN/SPY-1
United States naval transmission facility near Oso, Washington
devoted to the enormous overhead wire antenna array that is necessary to efficiently radiate the VLF waves. The antenna, shown above, consists of ten catenary
Jim_Creek_Naval_Radio_Station
Guidance system for a landing aircraft
"sidebands only", is also sent to the antenna array. For lateral guidance, known as the localizer, the antenna is normally placed centrally at the far
Instrument_landing_system
Soviet over-the-horizon early-warning radar system
the top or middle of the Duga, despite the actual radar array lacking this. The Duga antenna array is also featured on the revised map "Verdansk '84" in
Duga_radar
Type of radio antenna consisting of a loop or coil
first as "parasitic" director or reflector element(s), creating an antenna array which is unidirectional with gain that increases with each additional
Loop_antenna
Physical transmission device
radiation. An array antenna is a high gain antenna consisting of an array of smaller antenna elements. A leaky wave antenna uses a leaking transmission line to
Microwave_antenna
Apparent center of radio emission from an antenna
section of the radiation pattern. If it is used in the context of an antenna array, one has to define a reference point from which the basevectors of the
Phase_center
Mathematical result
the rows (was proposed by V. Slyusar in 1996 for radar and digital antenna array applications). More directly, let C ∈ R 3 × 3 {\displaystyle {C}\in
Johnson–Lindenstrauss_lemma
Property of points all lying on a single line
(or co-linear) antenna array is an array of dipole antennas mounted in such a manner that the corresponding elements of each antenna are parallel and
Collinearity
Area dedicated to radio transmitting
An antenna farm, satellite dish farm or dish farm is an area dedicated to television or radio telecommunications transmitting or receiving antenna equipment
Antenna_farm
US Air Force radar station in Oregon
Communications Antenna" HAER No. CA-2258-G, "Over-the-Horizon Backscatter Radar Network, Tulelake Radar Site Receive Sector Five Antenna Array" HAER No. CA-2258-J
Christmas Valley Air Force Station
Christmas_Valley_Air_Force_Station
Russian over-the-horizon radar system
separate antenna arrays: one for the transmitter and one for the receiver. The receiver antenna array contains 144 antenna masts, each 34 m high. The array has
Container_radar
Television-transmitting mast in Blanchard, North Dakota
(590 m); topped by the transmitting antenna array of 53 feet (16 m). The total height of both is 1,987 feet (606 m). The antenna weighs 9,000 pounds (4.1 t),
KVLY-TV_mast
Over-the-horizon radar network in Australia
included real time signal processing, custom built processors, larger antenna arrays, and higher power transmitters, which resulted in a more sensitive and
Jindalee Operational Radar Network
Jindalee_Operational_Radar_Network
Direction from which a signal is received
a radio-frequency wave incident on an antenna array or determined from maximum signal strength during antenna rotation. The AoA can be calculated by
Angle_of_arrival
Type of RF antenna
bandwidth. Spiral antennas are inherently circularly polarized with low gain; antenna arrays can be used to increase the gain. Spiral antennas are reduced in
Spiral_antenna
System of ten radio telescopes
National Radio Astronomy Observatory (NRAO). These ten radio antennas work together as an array that forms the longest system in the world that uses very
Very_Long_Baseline_Array
antenna array: direct, remote and wireless antenna array. Direct antenna array: linear and 3D phased array, new structure array, and dynamic antenna array
Many_antennas
American satellite manufacturer
Kennedy Space Center Launch Complex 39A. The 693-square-foot (64 m2) antenna array of BlueWalker 3 was successfully unfolded to full deployment on November
AST_SpaceMobile
American surface-to-air missile system since 1981
capability. The radar antenna array consists of over 5,000 elements that "deflect" the radar beam many times per second. The radar antenna array contains an IFF
MIM-104_Patriot
Regional jet airliner family
runway on take-off and struck the runway's instrument landing system antenna array. The aircraft sustained substantial damage to the fuselage, left wing
Embraer_E-Jet_family
Airborne early warning and control aircraft
Generation design, it has a fixed active electronically scanned array (AESA) radar antenna instead of a rotating one as with the 707-based Boeing E-3 Sentry
Boeing_E-7_Wedgetail
Direction from which a signal is received
the merit of localizing more targets with less antenna resources. Indeed, it is well-known in the array processing community that, generally speaking,
Direction_of_arrival
Passive electronic component used for RF beamforming
phase shift. If the output ports are connected to individual antennas in an antenna array, this allows shaping the beam in different directions by switching
Rotman_lens
US military transportable X-band surveillance radar
Transportable (FBX-T) is a long-range, very high-altitude active digital antenna array surveillance radar designed to add a tier to existing missile and air
AN/TPY-2_transportable_radar
Optical axis of a directional antenna
the boresight axis. Most antennas boresight axis is fixed by their shape and cannot be changed. However phased-array antennas can electronically steer
Antenna_boresight
Antenna with a fractal shape
nature of the antenna shrinks its size, without the use of any extra components such as inductors or capacitors. Log-periodic antennas are arrays invented
Fractal_antenna
U.S. Navy AN/FRD-10A(V) antenna array, which is a Circularly Disposed Antenna Array (CDAA) also known as a Wullenweber array. The island was shared with
Galeta_Island_(Panama)
Radio observatory in Lima, Peru
JRO's main antenna is the largest of all the incoherent scatter radars in the world. The main antenna is a cross-polarized square array composed of 18
Jicamarca_Radio_Observatory
Communications method involving a one-to-many connection
channel from the multiple receivers. A central antenna or antenna array broadcasts to several receiving antennas and the system uses a form of time-division
Point-to-multipoint communication
Point-to-multipoint_communication
Type of parabolic reflector used in some radar systems
; Virdee, B.S.; Pilevari Salmasi, Mostafa (2019). "Microstrip patch antenna array with cosecant-squared radiation pattern profile" (PDF). AEU — International
Cosecant_squared_antenna
WWII German radar equipment
wide antenna array of eight vertical dipoles was mounted for the IFF.The first 62 Jagdschloss were of the Voll Wismar type using wide band antenna covering
Luftwaffe and Kriegsmarine radar equipment of World War II
Luftwaffe_and_Kriegsmarine_radar_equipment_of_World_War_II
Type of directional antenna
television antennas. The antenna can be regarded as a form of directive antenna with a gain intermediate between a plane reflective array antenna and a parabolic
Corner_reflector_antenna
ANTENNA ARRAY
ANTENNA ARRAY
Girl/Female
American, British, English, Latin
Courageous; Female Version of Andrea
Girl/Female
American, Australian
Praiseworthy
Girl/Female
English, German
Light
Male
Egyptian
, Antef the Great.
Boy/Male
Egyptian
God of the moon.
Girl/Female
British, English, Finnish, Latin, Polish, Spanish, Swedish
Highly Praiseworthy; Priceless; Beyond-price; Invaluable; Inestimable; Female Version of Antonio Beyond Praise
Girl/Female
Spanish
Leaving.
Female
Italian
(Bulgarian ÐнтониÑ): Feminine form of Roman Latin Antonius, possibly ANTONIA means "invaluable." In use by the English, Italians and Spanish. Compare with another form of Antonia.
Girl/Female
Indian
Kind; Noble; Roman Goddess of Water
Girl/Female
English
and Charlene.
Female
Bulgarian
, inestimable.
Girl/Female
Australian, Swedish
Priceless; Inestimable
Girl/Female
Polish Russian Spanish English Latin
Priceless.
Girl/Female
English
Feminine of Andrea.
Female
English
 Feminine form of Roman Latin Antonius, possibly ANTONIA means "invaluable." In use by the English, Italians and Spanish. Compare with another form of Antonia.
Girl/Female
Australian, Danish, Swedish
Answer My Prayer; God has Favored Me
Girl/Female
American, British, English
Pledge; Variant of Carlene and Charlene
Girl/Female
Italian American Spanish English Latin
Priceless.
Female
Spanish
 Feminine form of Roman Latin Antonius, possibly ANTONIA means "invaluable." In use by the English, Italians and Spanish.
Boy/Male
Shakespearean Latin
The History of Troilus and Cressida' A Trojan commander.
ANTENNA ARRAY
ANTENNA ARRAY
Surname or Lastname
English
English : from a pet form of the Middle English personal name Babb.James Babcock settled in Portsmouth, RI, in 1642.
Boy/Male
Gujarati, Hindu, Indian
Lord Shiva
Boy/Male
Hindu, Indian
God Datta
Boy/Male
American, British, Christian, English, French, Hebrew
Jehovah is God; God on High; My God is Jehovah; From a Surname Derived from a Medieval Abbreviation of the Greek Elias; Variant of Elijah; Believes in God
Female
German
Feminine form of German Wiebe, WIBEKE means "war."
Girl/Female
Australian, French, Greek, Latin
Wide Justice; Wife of Orpheus
Boy/Male
American, Arabic, Hindu, Indian, Muslim, Nigerian
Wise; All-knowing; One of God's Ninety-nine Qualities; Intelligent; Judicious
Girl/Female
Hindu, Indian
Time
Surname or Lastname
English
English : nickname for a short, fat person, from Middle English bal(le) ‘ball’ (Old English ball, Old Norse b{o,}llr).English : topographic name for someone who lived on or by a knoll or rounded hill, from the same Middle English word, bal(le), used in this sense.English : from the Old Norse personal name Balle, derived either from ballr ‘dangerous’ or b{o,}llr ‘ball’.South German : from Middle High German bal ‘ball’, possibly applied as a metonymic occupational name for a juggler, or a habitational name from a place so named in the Rhine area.Dutch and German : short form of any of various Germanic personal names formed with the element bald (see Bald).William Ball (1616–80) emigrated from Suffolk, England, to VA about 1650 and was one of the founders of Millenbeck on the Rappahannock.
Male
Icelandic
Icelandic form of Latin Stephanus, STEFÃN means "crown."Â
ANTENNA ARRAY
ANTENNA ARRAY
ANTENNA ARRAY
ANTENNA ARRAY
ANTENNA ARRAY
n.
A small antenna; -- applied to the smaller pair of antennae or feelers of Crustacea.
a.
Without antennae, as some insects.
a.
Containing knobs; full of knobs; ending in a nob. See Illust of Antenna.
a.
Having club-shaped antennae. See Antennae
n.
See Henna.
pl.
of Antenna
a.
Situated below the eyes, as the antenna of certain insects.
n. pl.
A group of beetles having club-shaped antennae.
a.
Bearing or having antennae.
a.
Shaped like antennae.
n.
The second joint of the antennae of crustaceans.
n.
The scale, or exopodite, of an antenna of a crustacean.
a.
Joined or constricted, at regular intervals, so as to resemble a string of beads; as, a moniliform root; a moniliform antenna. See Illust. of Antenna.
a.
Having short antennae, as certain insects.
a.
Serrate on both sides, as some antennae.
a.
Belonging to the antennae.
n.
The third joint or the antennae of the Crustacea.
n.
A movable, articulated organ of sensation, attached to the heads of insects and Crustacea. There are two in the former, and usually four in the latter. They are used as organs of touch, and in some species of Crustacea the cavity of the ear is situated near the basal joint. In insects, they are popularly called horns, and also feelers. The term in also applied to similar organs on the heads of other arthropods and of annelids.
a.
Having serrated antenn/.
n.
Any one of a numerous tribe of beetles (Serricornia). The joints of the antennae are prominent, thus producing a serrate appearance. See Illust. under Antenna.