far-field region

См. также в других словарях:

• Intermediate-field region — Intermediate field region: For an antenna, the transition region lying between the near field region and the far field region in which the field strength of an electromagnetic wave is dependent upon the inverse distance, inverse square of the… …   Wikipedia

• Far North Region (Cameroon) — Coordinates: 11°00′N 14°30′E / 11°N 14.5°E / 11; 14.5 …   Wikipedia

• 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

• far-field — adjective Of or pertaining to the far field, the region sufficiently distant from a radio antenna for angular field distribution to be independent of distance. Ant: near field …   Wiktionary

• 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

• Field (physics) — The magnitude of an electric field surrounding two equally charged (repelling) particles. Brighter areas have a greater magnitude. The direction of the field is not visible …   Wikipedia

• Field emission — (FE) is the emission of electrons from the surface of a condensed phase into another phase due to the presence of high electric fields. In this phenomenon, electrons with energies below the Fermi level tunnel through the potential barrier at the… …   Wikipedia

• Far North Province — Geobox|Province name = Far North Province country = Cameroon country capital = Maroua map caption = Location of Far North Province within Cameroon coordinates type = adm1st lat d = 11 |lat m = 00 |lat NS = N long d = 14 |long m = 30 |long EW = E… …   Wikipedia

• Field-effect transistor — FET redirects here. For other uses, see FET (disambiguation). High power N channel field effect transistor The field effect transistor (FET) is a transistor that relies on an electric field to control the shape and hence the conductivity of a… …   Wikipedia

• Far Eastern Economic Review — The Far Eastern Economic Review (zh t|1=遠東經濟評論, Pinyin: Yuǎndōng Jīngjì Pínglùn; also referred to as FEER) is an English language Asian news magazine. The Hong Kong based business magazine was originally published weekly on every Thursday. Due to …   Wikipedia

• Far East —    Usually referred to today as East and Southeast Asia, the Far East encompasses the region of Asia that reaches geographically from the Malay Peninsula in the southwest to Korea and Japan in the northeast. Politically, a large part of the… …   Encyclopedia of the Age of Imperialism, 1800–1914