TERMIUM Plus®

The Government of Canada’s terminology and linguistic data bank.

H ANTENNA [7 records]

Filter results by subject field Alphabetical list of terms

Filter results by subject field

Alphabetical list of terms

Record 1 2009-09-14

English

Subject field(s)
  • Radio Transmission and Reception
  • Telecommunications Facilities
Key term(s)
  • H aerial, H-antenna

French

Domaine(s)
  • Émission et réception radio
  • Installations de télécommunications

Spanish

Save record 1

Record 2 - external organization data 2009-07-30

English

Subject field(s)
  • Compartment - ISO/IEC JTC 1 Information Technology Vocabulary
Universal entry(ies)
06.01.92 (19762)
ISO/IEC standard entry number
DEF

polarization of a propagating wave is determined by the locus or path described by the electric field vector with respect to time

OBS

Polarization is a term that often arises in the literature and when considering radio frequency communication and RFID. If we ascribe an x, y, z co-ordinate system to a propagating wave as illustrated below, with the direction of propagation being in the z direction, the electric field vector E will be in the x, y plane. If E remains in the same orientation with respect to time, so that its locus describes a straight line, the wave is said to be linearly polarized. However, if the locus describes a circular motion with respect to time the wave is said to be circularly polarized. Where the locus describes an elliptical path, the wave is said to be elliptically polarized.

OBS

Circular polarization is often used in communication systems since the orientation of the transmitting and receiving antenna is less important than it is with linearly polarized waves. The magnetic vector, H, always remains perpendicular to the E vector. Using an IEEE convention, a clockwise circular rotating wavefront approaching a receiver is defined as being left-hand circular(LHC) polarized. The power in the wavefront is expressed in the form of the Poynting vector, P : P=(E x H)=E x H sin..., where... is the phase angle between E and H.

OBS

polarization summary: term and definition standardized by ISO/IEC [ISO/IEC 19762-4:2008].

French

Spanish

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Record 3 2007-07-25

English

Subject field(s)
  • Flight Instruments and Equipment (Aeroindustry)
CONT

The complete system weighs approximately 18 kg(40 lb) and includes the following major sub-assemblies... : ADF antenna coupler, preamplifier, H field loop antenna and E field antenna(either one can be selected according to aircraft type), receiver/computer unit, optional equipment unit, control and display unit, course deviation indicator, digital ground speed and distance-to-go indicator.

French

Domaine(s)
  • Instruments et équipement de bord (Constructions aéronautiques)
OBS

[Le système de navigation Omega/VLF possède :] coupleur d'antenne ADF, préamplificateur, antenne cadre de champ H et antenne de champ E (utilisation de l'une ou l'autre selon les types d'avions), unité récepteurs/calculateur, unité éléments optionnels, unité de commande et de visualisation, indicateur d'écart de route, indicateur numérique de vitesse sol et de distance à parcourir.

Spanish

Save record 3

Record 4 2002-01-31

English

Subject field(s)
  • Satellite Telecommunications
OBS

[With the RADARSAT-2 spacecraft antenna], polarization can be controlled to achieve H [horizontal] or V [vertical] on transmit and receive paths by correct phasing of signal to and from each Radiating Element pair.

French

Domaine(s)
  • Télécommunications par satellite
OBS

L'ajustement approprié de la phase des signaux reçus et émis par chaque paire d'éléments rayonnants [de l'antenne du satellite RADARSAT-2] permet de contrôler la polarisation (H [horizontale] ou V [verticale]) des voies d'émission et de réception.

Spanish

Save record 4

Record 5 2002-01-31

English

Subject field(s)
  • Satellite Telecommunications
OBS

[With the RADARSAT-2 spacecraft antenna], polarization can be controlled to achieve H [horizontal] or V [vertical] on transmit and receive paths by correct phasing of signals to and from each radiating element pair.

French

Domaine(s)
  • Télécommunications par satellite
OBS

L'ajustement approprié de la phase des signaux reçus et émis par chaque paire d'éléments rayonnants [de l'antenne du satellite RADARSAT-2] permet de contrôler la polarisation (H [horizontale] ou V [verticale]) des voies d'émission et de réception.

Spanish

Save record 5

Record 6 2001-09-25

English

Subject field(s)
  • Telecommunications Transmission
CONT

The output of the VCO may be fed into a power amplifier before the RF signal is transmitted by the antenna. The output spectrum of the RF signal(for h=0. 35) is a symmetrical(two-sided) spectrum with a-20dB bandwidth of 1 Mhz.

French

Domaine(s)
  • Transmission (Télécommunications)
CONT

Le signal RF de faible intensité est reçu par l'antenne de la station terrestre et est amplifié au moyen d'un petit amplificateur typiquement situé au point focal de l'antenne. Le signal est abaissé dans la fréquence de bande L et alimenté par câble co-axial au récepteur où il est démodulé et décodé, et est alors acheminé à la tête de ligne du câblodistributeur ou directement au poste de télévision de l'abonné.

Spanish

Save record 6

Record 7 1981-12-10

English

Subject field(s)
  • Aeroindustry
CONT

The complete system weighs approximately 18 kg(40 lb) and includes the following major sub-assemblies(...) : ADF antenna coupler, preamplifier, H field loop antenna and E field antenna(either one can be selected according to aircraft type), receiver/computer unit, optional equipment unit, control and display unit, course deviation indicator, digital ground speed and distance-to-go indicator.

French

Domaine(s)
  • Constructions aéronautiques
CONT

[Le système de navigation Omega/VLF possède un] coupleur d'antenne ADF, préamplificateur, antenne cadre de champ H et antenne de champ E (utilisation de l'une ou l'autre selon les types d'avions), unité récepteurs/calculateur, unité éléments optionnels, unité de commande et de visualisation, indicateur d'écart de route, indicateur numérique de vitesse sol et de distance à parcourir.

Spanish

Save record 7

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