antenna unit

антенная установка

Англо-русский железнодорожный словарь. 2013.

Смотреть что такое "antenna unit" в других словарях:

  • Antenna measurement — techniques refers to the testing of antennas to ensure that the antenna meets specifications or simply to characterize it. Typical parameters of antennas are gain, radiation pattern, beamwidth, polarization, and impedance.The antenna pattern is… …   Wikipedia

  • Antenna tuner — An antenna tuner, transmatch, or antenna tuning unit (ATU) matches a transceiver with a fixed impedance (typically 50 ohms for modern transceivers) to a load (feed line and antenna) impedance which is unknown, complex or otherwise does not match …   Wikipedia

  • Antenna factor — In telecommunications, the antenna factor AF (unit: 1/m) is defined as the ratio of the incident electromagnetic field strength E (units: V/m or µV/m) to the voltage V (units: V or µV) on the line connection of an antenna:: AF = frac EVIf all… …   Wikipedia

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

  • Antenna noise temperature — In telecommunication, antenna noise temperature is the temperature of a hypothetical resistor at the input of an ideal noise free receiver that would generate the same output noise power per unit bandwidth as that at the antenna output at a… …   Wikipedia

  • Antenna rotator — An Antenna Rotator is device which is used to change the orientation of a directional antenna. Most antenna rotators have two parts, the rotator unit and the controller. The controller is normally placed near the equipment which the antenna is… …   Wikipedia

  • Unit disk graph — In geometric graph theory, a unit disk graph is the intersection graph of a family of unit circles in the Euclidean plane. That is, we form a vertex for each circle, and connect two vertices by an edge whenever the corresponding circles cross… …   Wikipedia

  • antenna — Synonyms and related words: aerials, barb, barbel, barbule, bedspring type, cat whisker, directional antenna, dish, doublet, feed and reflector unit, feeler, mast, mattress type, palp, palpus, reflector, rhombic antenna, scanner, strike radar… …   Moby Thesaurus

  • Sector antenna — OverviewSector antenna is a kind of directional antenna with a sector shaped radiation pattern. In mobile communications, these antennas are typically installed in base station sites for point to multipoint connections.tructure, Materials and… …   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

  • Orbital replacement unit — Orbital Replacement Units (ORUs) are key elements of the International Space Station that can be readily replaced when the unit either passes its design life or fails. Examples of ORUs are: pumps, storage tanks, controller boxes, antennas, and… …   Wikipedia

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