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...function Digital Array Radar ... and the Role of Time-Energy Management in Radar |date=2003 |publisher=DEFENSE TECHNICAL INFORMATION CENTER |url=https://app ...als, thereby obtaining a finer spatial resolution compared with its phased array counterpart. ...

...estructive interference properties of radio waves. A well designed antenna array, allows the broadcast power to be directed to where it is needed most. ...nal, as seen on collinear dipole arrays, or two dimensional as on military phased arrays. ...

...t and Evaluation Master Plan]] (TEMP). This is the volume of space where a radar system is required to reliably detect an object with a specific size and sp ...ed. The [[ambiguity function]] associated with [[pulse compression]] and [[Radar scalloping|scalloping]] associated with [[moving target indication]] are tw ...

...Handbook, 2nd Ed., by Robert Mailloux, Artech House, 2005</ref><ref>Phased Array Antennas by Arun K. Bhattacharyya, John Wiley & Sons, 2006</ref> ...ve electronically scanned array]] (AESA), [[passive electronically scanned array]] (PESA) ...

...mb|A common type of array antenna, a [[reflective array antenna|reflective array]] UHF [[television antenna]]. This example consists of eight [[dipole ante ...Nebo-M. It consists of 175 folded [[dipole]] antennas. An early [[phased array]], the antenna radiated a vertical fan-shaped beam which could be swept hor ...

...low [[signal-to-noise ratio]]). Applications include [[synthetic-aperture radar]],<ref name=SAR/><ref name=Yang/> [[CT scan|computed tomography scan]], and ...stimation. Suppose an <math>M</math>-element [[Sensor array|uniform linear array]] (ULA) receive <math>K</math> narrow band signals emitted from sources loc ...

...conventional ultrasound image formation where one [[transducer]] or linear array is used, SAU imaging has achieved higher lateral resolution and deeper pene ...of all array elements in turn, receive a signal using all possible receive array units, and then reconstruct the image by weighted summation of all [[Demodu ...

A '''Butler matrix''' is a [[beamforming]] network used to feed a [[phased array]] of [[driven element|antenna element]]s. Its purpose is to control the dir ...phase-mode.<ref>Josefsson & Persson, pp. 371-372</ref> A circular antenna array can be made to simultaneously produce an omnidirectional beam and multiple ...

...s is needed.{{sfn|Nwajana|Yeo|2020|p=45}} In applications such as airborne radar, weight and bulk are important considerations.{{sfn|Bowen|1954|p=532}} ...|collaboration=[[CSIRO]] Radiophysics Laboratory staff|title=A Textbook of Radar|publisher=[[Cambridge University Press]]|date=1954|oclc=706070977}}. ...

{{short description|Beam focusing, typically horn-fed planar array of unit cells}} A '''reflectarray antenna''' (or just '''reflectarray''') consists of an array of unit cells, illuminated by a feeding [[Antenna (radio)|antenna]] (source ...

...an be used instead of a [[Luneburg lens|dielectric lens]]. Unlike [[phased array]]s, transmitarrays do not require a feed network, so losses can be greatly ...is a [[Phase (waves)#Phase shift|phase-shifting]] surface consisting of an array of unit cells. These focus the wavefronts from a feeding antenna into a nar ...

...arrival estimation using ESPRIT with sparse arrays.// Proc. 2009 European Radar Conference (EuRAD). – 30 Sept.-2 Oct. 2009. - Pp. 246 - 249. - [https://iee ...number of sensors in the array, ''m'' is the number of sensors in each sub-array, and <math>J_1</math> and <math>J_2</math> are selection matrices)]] ...

* ''[[Advanced Radar Research Center]]'' ('''ARRC''') * ''[[Doppler weather radar]]'' ...

...emergency communications devices, [[sensor|micro-sensors]] and portable [[radar|ground-penetrating radars]] to search for geophysical features. ...tp://newswise.com/articles/view/538769|title='Metafilms' Can Shrink Radio, Radar Devices}} ...

...mounted on interlocking sheets of fiberglass circuit board.<br> The total array consists of 3 by 20×20 unit cells with overall dimensions of 10×100×100 mil ...se are [[metamaterial absorber|electromagnetic absorbers]] such as [[radar|radar-microwave]] absorbers, electrically small [[resonator]]s, [[waveguide]]s th ...

...rrington-awardee"/> The development of the method and its indications in [[radar]] and antenna engineering attracted interest; MoM research was subsequently ...1999"/> For the [[Periodic function|periodic]] structures such as [[phased array]]s and [[frequency selective surface]]s, [[series acceleration]] methods su ...

...Upgraded Early Warning radar (UEWR) (7414560082).jpg|thumb|Missile warning radar at [[Pituffik Space Base]], Greenland]] ...y/Cmd%20History%20Book/Chap%201.pdf |title=Aircraft, Rockets, Missiles and Radar, 1907-1961 |access-date=30 May 2023 |archive-date=7 April 2023 |archive-url ...

...er military applications that require high specific power are phased array radar antennae, laser power supplies, military radio communications, avionics dis ...