far-field pattern

См. также в других словарях:

• Far-field radiation pattern — In antenna engineering, the far field is the region beyond approximately 10 wavelengths from the antenna where the spherical wave genereated appears approximately planar, which leads to simplified versions of the radiation equations. A key… …   Wikipedia

• Near and far field — This article is about the electromagnetic concept. For the mathematical, see Near field (mathematics). Antenna field regions for antennas that are shorter than the wavelength of the radiation they emit, such as the whip antenna of a citizen s… …   Wikipedia

• Radiation pattern — Three dimensional antenna radiation patterns. The radial distance from the origin in any direction represents the strength of radiation emitted in that direction. The top shows the directive pattern of a horn antenna, the bottom shows the… …   Wikipedia

• Pattern language — A pattern language is a structured method of describing good design practices within a field of expertise. It is characterized by Fact|date=June 2008 # Noticing and naming the common problems in a field of interest, # Describing the key… …   Wikipedia

• Pattern 1914 Enfield — Rifle, .303 Pattern 1914 Pattern 1914 Enfield Type Service rifle Place of origin …   Wikipedia

• Field-programmable gate array — FPGAs should not be confused with the flip chip pin grid array, a form of integrated circuit packaging. A field programmable gate array is a semiconductor device containing programmable logic components called logic blocks , and programmable… …   Wikipedia

• Electromagnetic near-field scanner — could be defined as a measurement system to determine a spatial distribution of an electrical quantity provided by a single or multiple field probes acquired in the near field region of a device under test possibly accompanied by the associated… …   Wikipedia

• Near-field scanner — Electromagnetic near field scanner could be defined as a measurement system to determine a spatial distribution of an electrical quantity provided by a single or multiple field probes acquired in the near field region of a device under test… …   Wikipedia

• geomagnetic field — Magnetic field associated with the Earth. It is essentially dipolar (i.e., it has two poles, the northern and southern magnetic poles) on the Earth s surface. Away from the surface, the field becomes distorted. Most geomagnetists explain the… …   Universalium

• Depth of field — The area within the depth of field appears sharp, while the areas in front of and beyond the depth of field appear blurry …   Wikipedia

• Singleton pattern — In software engineering, the singleton pattern is a design pattern used to implement the mathematical concept of a singleton, by restricting the instantiation of a class to one object. This is useful when exactly one object is needed to… …   Wikipedia