In telecommunication, the term radiation pattern has the following meanings: BlackBerry 7100t Telecommunication refers to communication over long distances. ...

1. The variation of the field intensity of an antenna as an angular function with respect to the axis. Also, the radiation pattern is a graphical depiction of the relative field strength transmitted from or received by the antenna. In physics, the field strength of a field is its force per unit mass or charge at a point. ... A yagi antenna Most simply, an antenna is an electronic component designed to send or receive radio waves. ...

Note: A radiation pattern is usually represented graphically for the far-field conditions along the electrical field and the magnetic field vectors, along the direction of maximum radiation or E-plane and H-plane. Radiation has a variety of different meanings. ... In the study of diffraction and antenna design, the near field is that part of the radiated field that is within a small number of wavelengths of the diffracting edge or antenna. ... Diagram showing the relationship between the E and H planes for a vertically polarized omnidirectional dipole antenna E-Plane E-plane: For a linearly polarized antenna, the plane containing the electric field vector and the direction of maximum radiation. The electric field or E plane determines the polarization or orientation...

Image File history File links Download high resolution version (982x440, 10 KB)This diagram was created by Konrad Roeder. ...

2. In fiber optics, the relative power distribution at the output of a fiber or active device as a function of position or angle. Fiber Optic strands An optical fiber in American English or fibre in British English is a transparent thin fiber for transmitting light. ... // Mechanical power In physics, power (symbol: P) is the amount of work W done per unit of time t. ... Information processing In information processing, output is the process of transmitting information (verb usage). ...

Note 1: The near-field radiation pattern describes the radiant emittance (W·m^-2) as a function of position in the plane of the exit face of an optical fiber. In the study of diffraction and antenna design, the near field is that part of the radiated field that is within a small number of wavelengths of the diffracting edge or antenna. ... Optical fibers An optical fiber is a transparent thin fiber, usually made of glass or plastic, for transmitting light. ...

Note 2: The far-field radiation pattern describes the irradiance as a function of angle in the far-field region of the exit face of an optical fiber. In the study of diffraction and antenna design, the near field is that part of the radiated field that is within a small number of wavelengths of the diffracting edge or antenna. ... Irradiance, in physics, is the density of radiant flux incident on a given area, typically measured as a unit of power per unit area (for example watts per square metre). ... In the study of diffraction and antenna design, the near field is that part of the radiated field that is within a small number of wavelengths of the diffracting edge or antenna. ...

Note 3: The radiation pattern may be a function of the length of the fiber, the manner in which it is excited, and the wavelength. Synonym directivity pattern. The wavelength is the distance between repeating units of a wave pattern. ...

Source: from Federal Standard 1037C and from MIL-STD-188 Federal Standard 1037C entitled Telecommunications: Glossary of Telecommunication Terms is a U.S. Federal Standard, issued by the General Services Administration pursuant to the Federal Property and Administrative Services Act of 1949, as amended. ... MIL-STD-188 is a series of U.S. military standards relating to telecommunications. ...

Radiation Pattern may also be a description of the pattern of light produced by an LED; for example Batwing, Lambertian or Side Emitting. Various light-emitting diodes (5 mm reds, 3 mm greens and yellows) A light-emitting diode (LED) is a semiconductor device that emits incoherent monochromatic light when electrically biased in the forward direction. ...

External Links

[[http://www.astronwireless.com/radiation_patterns.html Understanding and Using Antenna Radiation Patterns By Joseph H. Reisert]]

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