antenna gain - перевод на русский
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antenna gain - перевод на русский

TELECOMMUNICATIONS PERFORMANCE METRIC
Absolute gain (physics); Absolute gain (Physics); Total Radiated Power; Aerial gain; Antenna gain
  • Diagram illustrating how isotropic gain is defined. The axes represent power density in watts per square meter. <math>R</math> is the radiation pattern of a directive antenna, which radiates a maximum power density of <math>S</math> watts per square meter at some given distance from the antenna. The green ball <math>R_\text{iso}</math> is the radiation pattern of an isotropic antenna which radiates the same total power, and <math>S_\text{iso}</math> is the power density it radiates.  The gain of the first antenna is <math display="inline">{S \over S_\text{iso}}</math>. Since the directive antenna radiates the same total power within a small angle along the z axis, it can have a higher signal strength in that direction than the isotropic antenna, and so a gain greater than one.
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antenna gain         

общая лексика

коэффициент усиления антенны

beam antenna         
  • Patch antenna gain pattern
ANTENNA WHICH RADIATES OR RECEIVES GREATER POWER IN SPECIFIC DIRECTIONS
High-gain antenna; Low-gain antenna; Low Gain Antenna; High Gain Antenna; High gain antenna; Directional antennae; Low gain antenna; Beam antenna

общая лексика

прожекторная антенна

радиотехника

лучевая антенна

beam antenna         
  • Patch antenna gain pattern
ANTENNA WHICH RADIATES OR RECEIVES GREATER POWER IN SPECIFIC DIRECTIONS
High-gain antenna; Low-gain antenna; Low Gain Antenna; High Gain Antenna; High gain antenna; Directional antennae; Low gain antenna; Beam antenna
[радио] лучевая /остронаправленная/ антенна
directional antenna         
  • Patch antenna gain pattern
ANTENNA WHICH RADIATES OR RECEIVES GREATER POWER IN SPECIFIC DIRECTIONS
High-gain antenna; Low-gain antenna; Low Gain Antenna; High Gain Antenna; High gain antenna; Directional antennae; Low gain antenna; Beam antenna

общая лексика

направленная антенна

directional antenna         
  • Patch antenna gain pattern
ANTENNA WHICH RADIATES OR RECEIVES GREATER POWER IN SPECIFIC DIRECTIONS
High-gain antenna; Low-gain antenna; Low Gain Antenna; High Gain Antenna; High gain antenna; Directional antennae; Low gain antenna; Beam antenna
направленная антенна
aerial wire         
  • base station]] antennas
  • The wave reflected by earth can be considered as emitted by the image antenna.
  •  The currents in an antenna appear as an image in ''opposite'' phase when reflected at grazing angles. This causes a phase reversal for waves emitted by a horizontally polarized antenna (center) but not for a vertically polarized antenna (left).
  • θ}}&nbsp;=&nbsp;0&nbsp;.
  • Film on working of antenna
  • Electronic symbol for an antenna
  • Typical center-loaded mobile CB antenna with [[loading coil]]
  • An automobile's [[whip antenna]], a common example of an omnidirectional antenna.
  • I}}</span>) whose width is proportional to the amplitude of the quantity at that point on the antenna.
  • Diagram of the [[electric field]]s (''<span style="color:blue;">'''blue'''</span>'') and [[magnetic field]]s (''<span style="color:red;">'''red'''</span>'') radiated by a [[dipole antenna]] ('' '''black''' rods'') during transmission.
  • Half-wave [[dipole antenna]]
  • Polar plots of the horizontal cross sections of a (virtual) Yagi-Uda-antenna. Outline connects points with 3&nbsp;dB field power compared to an ISO emitter.
  • df=dmy-all}}</ref>
ELECTRICAL DEVICE WHICH CONVERTS ELECTRIC POWER INTO RADIO WAVES, AND VICE VERSA
Antenna theory; Radio antenna; Antennas; Antenna (electronics); Antenna (astronomy); Antena (radio); Antenna (electromagnetism); Radio antennas; External removable antenna; External antenna; TV Aerial; Radio antennae; Radio Antenna; Aerial Wire; Polarization (antenna); Aerial (radio); Polarization (antennas); Antenna bandwidth; GP antenna; Antenna polarization; Antennas (radio)

общая лексика

антенна

aerial wire         
  • base station]] antennas
  • The wave reflected by earth can be considered as emitted by the image antenna.
  •  The currents in an antenna appear as an image in ''opposite'' phase when reflected at grazing angles. This causes a phase reversal for waves emitted by a horizontally polarized antenna (center) but not for a vertically polarized antenna (left).
  • θ}}&nbsp;=&nbsp;0&nbsp;.
  • Film on working of antenna
  • Electronic symbol for an antenna
  • Typical center-loaded mobile CB antenna with [[loading coil]]
  • An automobile's [[whip antenna]], a common example of an omnidirectional antenna.
  • I}}</span>) whose width is proportional to the amplitude of the quantity at that point on the antenna.
  • Diagram of the [[electric field]]s (''<span style="color:blue;">'''blue'''</span>'') and [[magnetic field]]s (''<span style="color:red;">'''red'''</span>'') radiated by a [[dipole antenna]] ('' '''black''' rods'') during transmission.
  • Half-wave [[dipole antenna]]
  • Polar plots of the horizontal cross sections of a (virtual) Yagi-Uda-antenna. Outline connects points with 3&nbsp;dB field power compared to an ISO emitter.
  • df=dmy-all}}</ref>
ELECTRICAL DEVICE WHICH CONVERTS ELECTRIC POWER INTO RADIO WAVES, AND VICE VERSA
Antenna theory; Radio antenna; Antennas; Antenna (electronics); Antenna (astronomy); Antena (radio); Antenna (electromagnetism); Radio antennas; External removable antenna; External antenna; TV Aerial; Radio antennae; Radio Antenna; Aerial Wire; Polarization (antenna); Aerial (radio); Polarization (antennas); Antenna bandwidth; GP antenna; Antenna polarization; Antennas (radio)
aerial wire антенна
geniculate antenna         
  • Cutaway diagram of a barnacle, with antennae highlighted by arrow
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  • Terms used to describe shapes of insect antennae
  • Olfactory receptors (scales and holes) on the antenna of the butterfly ''[[Aglais io]]'', electron micrograph
  • Electron micrograph]] of antenna surface detail of a wasp ''([[Vespula vulgaris]])''
APPENDAGES USED FOR SENSING IN ARTHROPODS
Antennule; Antennomere; Flagellomere; Antenna (Biology); Antennomeres; Antennal; Antennary; Antennation; Antenna (arthropod anatomy); Flagellomeres; Antennae (biology); Geniculate antenna; Pedicel (antenna); Antenna of insects; Antennules; Insect antenna; Antenna (anatomy); Antenna (insect); Arthropod antennae

общая лексика

коленчатый усик

antennary         
  • Cutaway diagram of a barnacle, with antennae highlighted by arrow
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  • Terms used to describe shapes of insect antennae
  • Olfactory receptors (scales and holes) on the antenna of the butterfly ''[[Aglais io]]'', electron micrograph
  • Electron micrograph]] of antenna surface detail of a wasp ''([[Vespula vulgaris]])''
APPENDAGES USED FOR SENSING IN ARTHROPODS
Antennule; Antennomere; Flagellomere; Antenna (Biology); Antennomeres; Antennal; Antennary; Antennation; Antenna (arthropod anatomy); Flagellomeres; Antennae (biology); Geniculate antenna; Pedicel (antenna); Antenna of insects; Antennules; Insect antenna; Antenna (anatomy); Antenna (insect); Arthropod antennae

[æn'ten(ə)læn'ten(ə)ri]

прилагательное

энтомология

антеннальный

имеющий усики

усиковый

antennal         
  • Cutaway diagram of a barnacle, with antennae highlighted by arrow
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  • Terms used to describe shapes of insect antennae
  • Olfactory receptors (scales and holes) on the antenna of the butterfly ''[[Aglais io]]'', electron micrograph
  • Electron micrograph]] of antenna surface detail of a wasp ''([[Vespula vulgaris]])''
APPENDAGES USED FOR SENSING IN ARTHROPODS
Antennule; Antennomere; Flagellomere; Antenna (Biology); Antennomeres; Antennal; Antennary; Antennation; Antenna (arthropod anatomy); Flagellomeres; Antennae (biology); Geniculate antenna; Pedicel (antenna); Antenna of insects; Antennules; Insect antenna; Antenna (anatomy); Antenna (insect); Arthropod antennae

[æn'ten(ə)læn'ten(ə)ri]

общая лексика

антеннальный

прилагательное

энтомология

антеннальный

имеющий усики

усиковый

Определение

Аруз
(иначе аруд)

система стихосложения, возникшая в арабской поэзии и распространившаяся в ряде стран Ближнего и Среднего Востока. Теория А., впервые разработанная в трудах арабского филолога Халиля ибн Ахмеда (8 в.), получила развитие у более поздних иранских теоретиков Рашида Ватвата, Шамси Кайса Рази и др. В А. ритмообразующим элементом стиха является определённое чередование долгих и кратких слогов, согласно закону арабской фонетики. Однако вскоре система А. начала применяться не только в языках со сходным звуковым составом (язык фарси), но и в тюркских языках, где гласные не различаются по долготе. Кратким слогом в А. (условное обозначение ∪) считается открытый слог с кратким гласным; долгим (условное обозначение -) - открытый слог с долгим гласным; полуторным (- ∪) - закрытый слог с кратким гласным. Комбинация долгих и кратких слогов образует стопу - основной элемент стиха. Насчитывают до 8 основных стоп:

1. ∪ - -;

2.- ∪ -;

3. ∪ - - -;

4. - - ∪ -;

5.- ∪ - -;

6. ∪ - ∪ -;

7. - ∪ -;

8.- - - ∪;

их различные сочетания дают 19 основным метров, из них 7 с одинаковыми стопами и 12 с разными. Но т. к. любая основная стопа каждого метра может подвергаться разного рода изменениям (зихафы), число вариантов метров значительно возрастает. А. оставался в арабской, персо-таджикской и в ряде тюркских литератур единственной системой стихосложения вплоть до 20 в., когда были сделаны попытки введения новых метров (вольный стих, силлабо-тонический и др.).

Лит.: Крымский А., Арабская литература в очерках и образцах, М., 1911; Корш Ф., Древнейший народный стих турецких племен, СПБ, 1909; Вахид Табризи, Джам'-и мухтасар. Трактат о поэтике, М., 1959; Bloch A., Vers und Sprache im Altarabischen, Basel, 1946; Weil G., Grundriss und System der altarabischen Metren, Wiesbaden, 1958; Ханлери, Парвиз Натель, Тахгиге энтегади дар арузе фарси..., Тегеран, 1327 с. г. х. (1948).

Н. Б. Кондырева.

Википедия

Gain (antenna)

In electromagnetics, an antenna's gain is a key performance parameter which combines the antenna's directivity and radiation efficiency. The term power gain has been deprecated by IEEE. In a transmitting antenna, the gain describes how well the antenna converts input power into radio waves headed in a specified direction. In a receiving antenna, the gain describes how well the antenna converts radio waves arriving from a specified direction into electrical power. When no direction is specified, gain is understood to refer to the peak value of the gain, the gain in the direction of the antenna's main lobe. A plot of the gain as a function of direction is called the antenna pattern or radiation pattern. It is not to be confused with directivity, which does not take an antenna's radiation efficiency into account.

Gain or 'absolute gain' is defined as "The ratio of the radiation intensity in a given direction to the radiation intensity that would be produced if the power accepted by the antenna were isotropically radiated". Usually this ratio is expressed in decibels with respect to an isotropic radiator (dBi). An alternative definition compares the received power to the power received by a lossless half-wave dipole antenna, in which case the units are written as dBd. Since a lossless dipole antenna has a gain of 2.15 dBi, the relation between these units is G a i n ( d B d ) G a i n ( d B i ) 2.15 {\displaystyle \mathrm {Gain(dBd)} \approx \mathrm {Gain(dBi)} -2.15} . For a given frequency, the antenna's effective area is proportional to the gain. An antenna's effective length is proportional to the square root of the antenna's gain for a particular frequency and radiation resistance. Due to reciprocity, the gain of any antenna when receiving is equal to its gain when transmitting.

Как переводится antenna gain на Русский язык