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transmitting phased array

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  • Phased array optics — (PAO) is the technology of controlling the phase of light waves transmitting or reflecting from a two dimensional surface by means of adjustable surface elements. It is the optical analog of phased array radar. By dynamically controlling the… …   Wikipedia

  • Thinned array curse — The thinned array curse (sometimes, sparse array curse ) is a theorem in electromagnetic theory of transmitters. It states that a transmitting aperture which is synthesized by a coherent phased array of smaller apertures that are spaced apart… …   Wikipedia

  • Tower array — A tower array is an arrangement of multiple radio towers which are mast radiators in a phased array. Tower arrays can consist of free standing or guyed towers or a mix of them. Tower arrays are used to constitute a directional antenna of a… …   Wikipedia

  • radar — /ray dahr/, n. 1. Electronics. a device for determining the presence and location of an object by measuring the time for the echo of a radio wave to return from it and the direction from which it returns. 2. a means or sense of awareness or… …   Universalium

  • History of radar — The history of radar starts with experiments by Heinrich Hertz in the late 19th century that showed that radio waves were reflected by metallic objects. This possibility was suggested in James Clerk Maxwell s seminal work on electromagnetism.… …   Wikipedia

  • Radar — For other uses, see Radar (disambiguation). A long range radar antenna, known as ALTAIR, used to detect and track space objects in conjunction with ABM testing at the Ronald Reagan Test Site on Kwajalein Atoll …   Wikipedia

  • Metamaterial antenna — This Z antenna tested at the National Institute of Standards and Technology is smaller than a standard antenna with comparable properties. Its high efficiency is derived from the Z element inside the square that acts as a metamaterial, greatly… …   Wikipedia

  • Type 348 Radar — The Type 346 radar is a new APAR style active phased array radar, used on the Chinese People s Liberation Army Navy s latest Lanzhou class Destroyer (052C). The radar is used in conjunction with the HQ 9 SAM to provide long range air defense… …   Wikipedia

  • Antenna (radio) — Whip antenna on car …   Wikipedia

  • Beamforming — is a signal processing technique used in sensor arrays for directional signal transmission or reception. This spatial selectivity is achieved by using adaptive or fixed receive/transmit beampattern. The improvement compared with an… …   Wikipedia

  • Rajendra Radar — Rajendra is a passive Phased Array Radar developed by the Indian DRDO. It is a multifunction radar, capable of surveillance, tracking and engaging low radar cross section targets. It is the heart of the Akash Surface to air missile system and is… …   Wikipedia

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