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sidelobe radiation

См. также в других словарях:

  • 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

  • Side lobe — In antenna engineering, side lobes are the lobes of the far field radiation pattern that are not the main beam, where the terms beam and lobe are synonyms. An antenna radiation pattern is more commonly called a beam pattern. The power density in… …   Wikipedia

  • Microwave burn — This article is about injury from direct microwave exposure. For other microwave oven related injuries, see Hazard section of Microwave oven. Microwave burns are burn injuries caused by thermal effects of microwave radiation absorbed in a living… …   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

  • Solar power satellite — A solar power satellite, or SPS or Powersat, as originally proposed would be a satellite built in high Earth orbit that uses microwave power transmission to beam solar power to a very large antenna on Earth. Advantages of placing the solar… …   Wikipedia

  • Horn antenna — Pyramidal microwave horn antenna, with a bandwidth of 0.8 to 18 GHz. A coaxial cable feedline attaches to the connector visible at top. This type is called a ridged horn; the curving fins visible inside the mouth of the horn increase the antenna… …   Wikipedia

  • Main lobe — A polar antenna radiation diagram. The radial distance from the center represents signal strength. The main lobe, or main beam, of an antenna radiation pattern is the lobe containing the maximum power. This is the lobe that exhibits the greatest… …   Wikipedia

  • Phased array — This article is about general theory and electromagnetic phased array. For the ultrasonic and medical imaging application, see phased array ultrasonics. In wave theory, a phased array is a group of antennas in which the relative phases of the… …   Wikipedia

  • Electronic counter-countermeasures — (ECCM) describes a variety of practices which attempt to reduce or eliminate the effect of Electronic countermeasures (ECM) on electronic sensors aboard vehicles, ships and aircraft and weapons such as missiles. ECCM is also known as Electronic… …   Wikipedia

  • MIM-104 Patriot — Patriot system of the German Luftwaffe Type Mobile Surface to air missile system Place of …   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

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