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An Active Electronically Scanned Array (AESA), also known as active phased array radar is a revolutionary type of radar whose transmitter and receiver functions are composed of numerous small transmit/receive (T/R) modules. AESA radars feature short to instantaneous (millisecond) scanning rates and have a desirable low probability of intercept. Image File history File links APAR.jpg Summary Thales Nederlands Active Phased Array Radar (APAR), mounted on Sachsen class frigate F220 Hamburg. ...
Image File history File links APAR.jpg Summary Thales Nederlands Active Phased Array Radar (APAR), mounted on Sachsen class frigate F220 Hamburg. ...
A giant phased-array radar in Alaska In telecommunication, a phased array is a group of antennas in which the relative phases of the respective signals feeding the antennas are varied in such a way that the effective radiation pattern of the array is reinforced in a desired direction and...
This long range radar antenna, known as ALTAIR, is used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on the Kwajalein atoll[1]. Radar is a system that uses radio waves to detect, determine the distance of, and map, objects such...
This long range radar antenna, known as ALTAIR, is used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on the Kwajalein atoll[1]. Radar is a system that uses radio waves to detect, determine the distance of, and map, objects such...
Antenna tower of Crystal Palace transmitter, London A transmitter (sometimes abbreviated XMTR) is an electronic device which with the aid of an antenna propagates an electromagnetic signal such as radio, television, or other telecommunications. ...
In radio terminology, a receiver is an electronic circuit that receives a radio signal from an antenna and decodes the signal for use as sound, pictures, navigational-position information, etc. ...
Being immobile, AESA radars have vastly simpler mechanical designs. They require no complex hydraulics for antenna movement nor hinge appendages that are prone to failure. The AESA radar occupies less space than typical radar, because of its lesser infrastructure requirements and of course its absent range of motion. The distributed transmit function also eliminates the most common single-point failure mode seen in a conventional radar. With these improvements, maintenance crews are far less severely taxed, and the radar is much more reliable. Table of Hydraulics and Hydrostatics, from the 1728 Cyclopaedia. ...
A yagi antenna Most simply, an antenna is an electronic component designed to send or receive radio waves. ...
Main advantages over mechanically scanned arrays are extremely fast scanning rate, much higher range, tremendous number of targets being tracked and engaged (multiple agile beams), low probability of intercept, ability to function as a radio/jammer, simultaneous air and ground modes, Synthetic Aperture Radar. The surface of Venus, as imaged by the Magellan probe using SAR Synthetic aperture radar (SAR) is a form of radar in which sophisticated post-processing of radar data is used to produce a very narrow effective beam. ...
Mechanical steering may be added to AESA radars for increased radar field of view; However, no such equipped AESA radars currently exist. The movement performance of the antenna would not need to be nearly as great as that of a traditional radar, as the radar sweep is not integral to the contact update rate. The field of view is the part of the observable world that is seen at any given moment. ...
The difference between AESA and PESA
In a passive electronically scanned array (PESA), the microwave feed network in the back of the antenna is powered by a single RF source (magnetron, klystron, TWT, etc.), sending its waves into phase shift modules (usually digitally-controlled), which, in turn, feed the numerous emitting elements. A cavity magnetron is a high-powered vacuum tube that generates coherent microwaves. ...
Reflex klystron Type 2K25 or 723 A/B. The threaded adjustment rod on the right side allows the position of the reflector to be adjusted (by compressing the reflex cavity), and thus the natural resonant frequency of the device. ...
A TWTA or travelling-wave tube amplifier is an electronic device used to produce high-power radiofrequency signals. ...
A digital system is one that uses numbers, especially binary numbers, for input, processing, transmission, storage, or display, rather than a continuous spectrum of values (an analog system) or non-numeric symbols such as letters or icons. ...
An AESA, instead, has an individual RF source for each of its many transmit/receive elements, making them "active". This provides for a graceful degradation, so that many T/R modules may fail and the radar would not stop functioning. Graceful degradation is a property of a computer system whereby it reacts safely and proportionately to erroneous or unexpected circumstances. ...
List of AESA radars
Airborne systems - Northrop Grumman/Raytheon AN/APG-77, for the F-22 Raptor
- Northrop Grumman/Raytheon AN/APG-80, for the F-16E/F Block 60 Fighting Falcon
- Northrop Grumman/Raytheon AN/APG-81, for the F-35 Joint Strike Fighter
- Northrop Grumman Multi-role AESA, for the Boeing Wedgetail (AEW&C)
- Raytheon AN/APG-63(V)2 and AN/APG-63(V)3, for the F-15C Eagle
- Raytheon AN/APG-79, for the F/A-18E/F Super Hornet
- Raytheon AN/APQ-181 (AESA upgrade currently in development), for the B-2 Spirit bomber
- AMSAR, from the European GTDAR consortium, for Eurofighter and Rafale fighters
- SELEX Seaspray 7000E, for helicopters
- IAI Phalcon AEW&C Elta radar system
- Mitsubishi Electric Corporation AESA for the Mitsubishi F-2 fighter
- Ericsson Erieye AEW&C and NORA AESA for JAS-39 Gripen
The Northrop Grumman Corporation (NYSE: NOC) is an aerospace and defense conglomerate that is the result of a 1994 merger between Northrop and Grumman. ...
Raytheon Company NYSE: RTN is a major United States military contractor based in Waltham, Massachusetts. ...
The AN/APG-77 radar is the F-22’s primary sensor and is a long-range, rapid-scan, and multi-functional system. ...
The F-22 Raptor is a stealth fighter aircraft built by Lockheed Martin Aeronautics and Boeing Integrated Defense Systems. ...
The Northrop Grumman Corporation (NYSE: NOC) is an aerospace and defense conglomerate that is the result of a 1994 merger between Northrop and Grumman. ...
Raytheon Company NYSE: RTN is a major United States military contractor based in Waltham, Massachusetts. ...
The F-16 Fighting Falcon is a modern multi-role jet fighter aircraft designed in the United States. ...
The Northrop Grumman Corporation (NYSE: NOC) is an aerospace and defense conglomerate that is the result of a 1994 merger between Northrop and Grumman. ...
Raytheon Company NYSE: RTN is a major United States military contractor based in Waltham, Massachusetts. ...
The F-35 Joint Strike Fighter (JSF) is a military fighter aircraft designed by the United States and the United Kingdom. ...
The Northrop Grumman Corporation (NYSE: NOC) is an aerospace and defense conglomerate that is the result of a 1994 merger between Northrop and Grumman. ...
The Boeing Wedgetail is an aircraft designed in response to Australias RFP to vendors for an Airborne Early Warning & Control (AEW&C) aircraft (and supporting segments) for the Royal Australian Air Force (RAAF). ...
An Airborne Early Warning (AEW) system is a radar system carried by an aircraft which is designed to detect other aircraft. ...
Raytheon Company NYSE: RTN is a major United States military contractor based in Waltham, Massachusetts. ...
AN/APG-63 and AN/APG-70 are designations for a family of all-weather multimode radar systems designed by Hughes Aircraft (now Raytheon) for the F-15 Eagle air superiority fighter, providing the Eyes of the Eagle. These X-band pulse-doppler radar systems are designed for both air...
--88. ...
Raytheon Company NYSE: RTN is a major United States military contractor based in Waltham, Massachusetts. ...
AN/APG-65, AN/APG-73 and AN/APG-79 are designations for a family of highly reliable, all-weather multimode airborne radar systems designed by Hughes Aircraft (now Raytheon) for the F/A-18 Hornet and used on a variety of fighter aircraft types. ...
Four F/A-18 E/F Super Hornets assigned to the Black Aces of Strike Fighter Squadron Forty One (VFA-41) fly over the western Pacific Ocean in a stack formation on 25 October 2003 F/A-18F at RAF Fairford The Boeing F/A-18E/F/G Super Hornet...
Raytheon Company NYSE: RTN is a major United States military contractor based in Waltham, Massachusetts. ...
The AN/APQ-181 is an all-weather, low probability of intercept (LPI) radar system designed by Hughes Aircraft (now Raytheon) for the U.S. Air Force B-2A Spirit bomber aircraft. ...
The B-2 Spirit, made by Northrop Grumman, is an American multi-role stealth bomber able to drop conventional and nuclear weapons. ...
The Airborne Multirole Solid State Active Array Radar (AMSAR), is an Active Electronically Scanned Array (AESA). ...
This article is about the continent. ...
GTDAR is a European consortium for the development of the AMSAR Active Electronically Scanned Array. ...
The Eurofighter Typhoon is a twin-engine multi-role canard-delta strike fighter aircraft, designed and built by a consortium of European aerospace manufacturers, Eurofighter GmbH, formed in 1983. ...
The Rafale is a highly agile French twin-engined delta-wing multi-role fighter aircraft designed and built by Dassault Aviation. ...
SELEX Sensors and Airborne Systems (Selex S&AS) is a major avionics joint venture created by the merger of Finmeccanicas Galileo Avionica and BAE Systems Avionics. ...
A helicopter is an aircraft which is lifted and propelled by one or more large horizontal rotors (propellers). ...
Israel Aircraft Industries or IAI is Israels prime aerospace and aviation manufacturer, producing aerial systems for both military and civilian usage. ...
Wikipedia does not have an article with this exact name. ...
An Airborne Early Warning (AEW) system is a radar system carried by an aircraft which is designed to detect other aircraft. ...
Mitsubishi Electric Corporation (三è±é›»æ©Ÿ, Mitsubishi Denki), TYO: 6503 is a Japanese company based in the Mitsubishi Denki Building in Tokyo, manufactures electric and architectural equipment. ...
The Mitsubishi F-2 is a Japanese fighter aircraft manufactured by Mitsubishi. ...
Ericsson () NASDAQ: ERICY is a Swedish telecommunications equipment manufacturer, founded in 1876 as a telegraph equipment repair shop by Lars Magnus Ericsson. ...
The Erieye radar system, is an Airborne Early Warning and Control System (AEW&Cs) developed by Ericsson of Sweden. ...
An Airborne Early Warning (AEW) system is a radar system carried by an aircraft which is designed to detect other aircraft. ...
The Saab JAS-39 Gripen (Griffin) is a fighter aircraft from Sweden manufactured by Saab. ...
Ground and sea-based systems APAR mounted on top of Sachsen class frigate F220 Hamburgs superstructure. ...
The De Zeven Provinciën class frigates are highly advanced air-defence frigates in service with the Koninklijke Marine (Dutch Navy). ...
F220 Hamburg in Hamburg Harbour The F124 Sachsen class is Germanys latest class of frigates. ...
Israel Aircraft Industries or IAI is Israels prime aerospace and aviation manufacturer, producing aerial systems for both military and civilian usage. ...
Arrow anti-ballistic missile launch The Arrow Interceptor (טיל חץ, Hebrew: Til Hetz) is a theater missile defense (TMD) system; it is the first missile developed by Israel that was specifically designed and built to intercept and destroy ballistic missiles on a national level. ...
The DD(X) with planned features. ...
The CG(X) is a cruiser, the descendant of the DD(X) will replace the Ticonderoga-class AEGIS cruisers, with improved Missile Defense and Air Warfare capability. ...
It has been proposed below that CVN-21 be renamed and moved to United States Navy CVN-21 program. ...
Raytheon Company NYSE: RTN is a major United States military contractor based in Waltham, Massachusetts. ...
Type 45 with SAMPSON radar on mast The SAMPSON is a multi-function radar produced by BAE Systems. ...
Launch of HMS Daring. ...
See also This long range radar antenna, known as ALTAIR, is used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on the Kwajalein atoll[1]. Radar is a system that uses radio waves to detect, determine the distance of, and map, objects such...
A giant phased-array radar in Alaska In telecommunication, a phased array is a group of antennas in which the relative phases of the respective signals feeding the antennas are varied in such a way that the effective radiation pattern of the array is reinforced in a desired direction and...
Antenna tower of Crystal Palace transmitter, London A transmitter (sometimes abbreviated XMTR) is an electronic device which with the aid of an antenna propagates an electromagnetic signal such as radio, television, or other telecommunications. ...
In radio terminology, a receiver is an electronic circuit that receives a radio signal from an antenna and decodes the signal for use as sound, pictures, navigational-position information, etc. ...
External links - Active Electronically Steered Arrays – A Maturing Technology
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