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Area: 705: Radio wave propagation           Index language:

Hide details for [<u>Section 705-01: Essential characteristics of electromagnetic fields and waves</u>]Section 705-01: Essential characteristics of electromagnetic fields and waves
705-01-01
field
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propagation
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wave
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velocity (vector) of propagation (of a wave)
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forward wavefront
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backward wavefront
705-01-07
electromagnetic field
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Maxwell's equations, pl
705-01-09
electromagnetic wave
705-01-10
radio wave
705-01-11
radio propagation
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(electromagnetic) mode
705-01-13
polarization, <of an electromagnetic wave>
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linear polarization
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horizontal polarization
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vertical polarization
705-01-17
elliptical polarization
705-01-18
right-hand polarization
705-01-19
left-hand polarization
705-01-20
circular polarization
705-01-21
polarization ellipse
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plane of polarization
705-01-23
orthogonal polarization, <of an elliptically or circularly polarized wave>
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longitudinal component
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transverse component
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radial component
705-01-27
transverse (electromagnetic) wave
705-01-28
wave vector
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equiphase surface
705-01-30
wavefront
705-01-31
equi-amplitude surface
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plane wave
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uniform plane wave
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homogeneous plane wave
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heterogeneous plane wave
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spherical wave
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free wave
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travelling wave
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travelling plane wave
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standing wave
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phase interference
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(interference) fringes
705-01-43
coherence
705-01-44
spatial coherence
705-01-45
time coherence
Hide details for [<u>Section 705-02: Radiation, paths and velocity of electromagnetic waves</u>]Section 705-02: Radiation, paths and velocity of electromagnetic waves
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electromagnetic radiation, <waves or photons>
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(volume) density of electromagnetic energy
705-02-03
power flux density
705-02-04
radiation intensity (in a given direction)
705-02-05
attenuation (of an electromagnetic wave)
705-02-06
spreading loss
705-02-07
absorption, <of electromagnetic waves>
705-02-08
absorption loss (of an electromagnetic wave)
705-02-09
Poynting vector
705-02-10
complex Poynting vector
705-02-11
phase delay
705-02-12
positive phase difference
705-02-13
negative phase difference
705-02-14
optical path length
705-02-15
direction of propagation (of a wave)
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phase velocity (vector)
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(phase) wavelength
705-02-18
direction of propagation (of energy)
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propagation path
705-02-20
geometrical optics
705-02-21
group velocity (vector)
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group delay
705-02-23
group wavelength
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propagation coefficient
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attenuation coefficient
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phase change coefficient
705-02-27
free space propagation
705-02-28
electromagnetic beam
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direct ray path
705-02-30
direct wave
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line of sight propagation
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indirect ray path
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indirect wave
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path length difference
705-02-35
space phase difference
705-02-36
multipath propagation
705-02-37
radio echo
Hide details for [<u>Section 705-03: Electromagnetic properties of propagation media</u>]Section 705-03: Electromagnetic properties of propagation media
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electric constant
705-03-02
absolute permittivity
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relative permittivity
705-03-04
complex relative permittivity
705-03-05
real relative permittivity
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dielectric loss angle
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dielectric (medium)
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perfect dielectric
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conducting medium
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perfect conductor
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absorbing medium
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absorption (frequency) band
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dispersive medium
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magnetic constant
705-03-15
absolute permeability
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relative permeability
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complex relative permeability
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real relative permeability
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magnetic loss angle
705-03-20
complex refractive index (in a given direction)
705-03-21
refractive index
705-03-22
wave impedance
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characteristic impedance of a medium
705-03-24
characteristic impedance of vacuum
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penetration depth, <of an electromagnetic wave>
Hide details for [<u>Section 705-04: Phenomena related to the boundaries of propagation media</u>]Section 705-04: Phenomena related to the boundaries of propagation media
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incident wave
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plane of incidence
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angle of incidence
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grazing angle
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grazing incidence
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transmitted wave
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refracted wave
705-04-08
refraction, <of electromagnetic waves>
705-04-09
reflected wave
705-04-10
reflection, <of an incident wave>
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specular reflection
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diffuse reflection
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specular surface
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rough surface
705-04-15
Rayleigh criterion
705-04-16
(amplitude) reflection factor
705-04-17
power reflection factor
705-04-18
Fresnel reflection factor
705-04-19
total reflection
705-04-20
Brewster's angle
705-04-21
Brewster angle incidence
705-04-22
pseudo-Brewster angle incidence
705-04-23
convergence
705-04-24
divergence, <for waves>
705-04-25
convergence factor
705-04-26
divergence factor
705-04-27
convergence gain
705-04-28
divergence loss
705-04-29
dispersion (of an electromagnetic wave)
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Fresnel ellipsoid
705-04-31
Fresnel zone (on a reflective surface)
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obstacle
705-04-42
shadow region
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diffracted wave
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diffraction
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scattered wave
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scattering
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forward scattering
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back scattering
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turbulence
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scale of turbulence
705-04-61
guided electromagnetic wave
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guided propagation
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cut-off frequency (for a mode)
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slow wave
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fast wave
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surface wave
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Zenneck wave
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(surface) wave tilt
705-04-69
leaky wave
705-04-70
evanescent field
705-04-71
lateral wave
Hide details for [<u>Section 705-05: Tropospheric propagation including the influence of the ground</u>]Section 705-05: Tropospheric propagation including the influence of the ground
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troposphere
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tropopause
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stratosphere
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stratopause
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mesosphere
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mesopause
705-05-07
temperature inversion (in the troposphere)
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mixing ratio, <of water vapour>
705-05-09
relative humidity
705-05-10
refractivity
705-05-11
N-unit
705-05-12
modified refractive index
705-05-13
refractive modulus
705-05-14
M-unit
705-05-15
standard refractivity gradient
705-05-16
standard refractive modulus gradient
705-05-17
standard radio atmosphere
705-05-18
reference atmosphere for refraction
705-05-19
standard refraction
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sub-refraction
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super-refraction
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hydrometeors
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precipitation
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radar reflectivity factor (of hydrometeors)
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tropospheric propagation
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tropospheric wave
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ground wave
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space wave (deprecated)
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radio horizon
705-05-36
radio horizon distance
705-05-37
trans-horizon propagation
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standard propagation
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standard radio horizon
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effective radius of the Earth
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effective Earth-radius factor
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equivalent gradient
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(tropospheric) layer
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ducting layer
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tropospheric (radio)duct
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ground based duct
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elevated duct
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duct thickness
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duct height
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ducting
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spherical diffraction
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edge diffraction
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knife-edge diffraction
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diffraction region
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tropospheric scatter (propagation)
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scattering region
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precipitation scatter (propagation)
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obstacle gain
705-05-59
height gain
705-05-60
gain degradation
705-05-61
path antenna gain
705-05-62
…..
Hide details for [<u>Section 705-06: Terrestrial ionized media</u>]Section 705-06: Terrestrial ionized media
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ion
705-06-02
ionization
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photo-ionization
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plasma
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electron density
705-06-06
degree of ionization (of a plasma)
705-06-07
ionization gradient component
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collision frequency, (electronic)
705-06-09
gyro-frequency
705-06-10
plasma frequency (electronic)
705-06-11
ionosphere
705-06-12
thermosphere
705-06-13
exosphere
705-06-14
exobase
705-06-15
plasmasphere
705-06-16
plasmapause
705-06-17
magnetosphere
705-06-18
magnetopause
705-06-19
D region
705-06-20
E region
705-06-21
F region
705-06-22
ionization profile
705-06-23
total electron content
705-06-24
vertical ionization gradient (component)
705-06-25
ionization ledge
705-06-26
sporadic ionization
705-06-27
ionospheric layer
705-06-28
E layer (normal)
705-06-29
sporadic E layer
705-06-30
F1 layer
705-06-31
F2 layer
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auroral zone
705-06-33
polar cap
705-06-34
magnetic storm
705-06-35
ionospheric disturbance
705-06-36
sudden ionospheric disturbance
705-06-37
ionospheric storm
705-06-38
ionospheric modification
Hide details for [<u>Section 705-07: Influence of the ionosphere on radio wave propagation</u>]Section 705-07: Influence of the ionosphere on radio wave propagation
705-07-01
ionospheric propagation
705-07-02
trans-ionospheric propagation
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(propagation by) ionospheric scatter
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ionospheric reflection
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virtual height
705-07-06
ionospheric wave
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hop
705-07-08
chordal hop
705-07-09
skip distance
705-07-10
skip zone
705-07-11
silent zone
705-07-12
low-angle ray
705-07-13
high-angle ray
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mode of propagation (in ionospheric propagation)
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M reflection
705-07-16
short-path signal
705-07-17
long-path signal
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round the world echo
705-07-19
cut-off frequency
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(operational) MUF
705-07-21
basic MUF
705-07-22
optimum working frequency
705-07-23
lowest usable frequency
705-07-24
ionospheric focussing
705-07-25
ionospheric defocussing
705-07-26
(ionospheric) horizon focussing
705-07-27
skip distance focussing
705-07-28
antipodal focussing
705-07-29
(ionospheric) focussing factor
705-07-30
(ionospheric) defocussing factor
705-07-31
longitudinal propagation, <of radio waves>
705-07-32
transverse propagation
705-07-33
laterally deviated (ionospheric) propagation
705-07-34
off-great-circle ionospheric propagation
705-07-35
(electron) gyro-frequency (in the ionosphere)
705-07-36
Faraday effect (for radio waves)
705-07-37
magneto-ionic double refraction
705-07-38
magneto-ionic component
705-07-39
ordinary wave (component)
705-07-40
extraordinary wave (component)
705-07-41
Z component
705-07-51
ionospheric absorption
705-07-52
normal (ionospheric) absorption
705-07-53
abnormal (ionospheric) absorption
705-07-54
non-deviative absorption
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deviative absorption
705-07-56
polar cap absorption
705-07-57
ionospheric distortion
705-07-58
ionospheric cross modulation
705-07-59
short-wave fade-out
705-07-61
ionospheric sounding
705-07-62
(ionospheric) monostatic sounding
705-07-63
(ionospheric) bistatic sounding
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vertical incidence ionospheric sounding
705-07-65
bottom-side ionospheric sounding
705-07-66
top-side ionospheric sounding
705-07-67
oblique incidence ionospheric sounding
705-07-68
back-scatter ionospheric sounding
705-07-69
incoherent scatter ionospheric sounding
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ionosonde
705-07-71
vertical incidence ionosonde
705-07-72
ionogram
705-07-73
critical frequency, <in ionospheric propagation>
705-07-74
blanketing frequency (of an ionospheric layer)
705-07-75
maximum observed frequency
705-07-76
junction frequency
705-07-77
nose extension
705-07-78
spread F
705-07-79
layer height
705-07-80
riometer
705-07-81
ionospheric prediction
705-07-82
(ionospheric) propagation forecast
705-07-83
solar activity
705-07-84
solar cycle
705-07-85
solar activity centre
705-07-86
international relative sunspot number
705-07-87
twelve-month running-mean sunspot number
705-07-88
monthly mean solar radio-noise flux
705-07-89
solar (activity) index
705-07-90
ionospheric index
705-07-91
ursigram
705-07-92
(ionospheric) transmission curve
705-07-93
(ionospheric) transmission factor
705-07-94
control point
705-07-95
two-control-point method
705-07-96
ionospheric map
705-07-97
numerical ionospheric map
Hide details for [<u>Section 705-08: Influence of propagation on radio communications</u>]Section 705-08: Influence of propagation on radio communications
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total loss, <of a radio link>
705-08-02
system loss
705-08-03
transmission loss (of a radio link)
705-08-04
basic transmission loss (of a radio link)
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free-space basic transmission loss
705-08-06
ray path transmission loss
705-08-07
loss relative to free space
705-08-08
polarization coupling loss
705-08-09
field strength diminution factor
705-08-11
fading, <of electromagnetic waves>
705-08-12
fading depth
705-08-13
fading duration
705-08-14
fading rate
705-08-15
rapidity of fading
705-08-16
slow fading
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fast fading
705-08-18
frequency selective fading
705-08-19
interference fading
705-08-20
scintillation
705-08-21
fade-out
705-08-31
field strength (of a radio transmitter)
705-08-32
usable field strength
705-08-33
nominal usable field strength
705-08-34
minimum usable field strength
705-08-35
standard unabsorbed field strength
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(fade) margin
705-08-37
flat fade margin
705-08-38
net fade margin
705-08-39
coordination distance
705-08-40
coordination contour
705-08-41
coordination area
705-08-42
range (of a radio transmitter)
705-08-43
field strength pattern (of a radio transmitter)
705-08-44
coverage area (of a radio transmitter)
705-08-51
depolarization
705-08-52
cross polarization
705-08-53
cross polarization discrimination (of a radio wave)
705-08-54
cross polarization isolation (of two radio waves)


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