Copyright © Philip M. Parker, INSEAD. Terms of Use.
Definition: Radiation Pattern |
Radiation PatternNoun1. Graphical representation (in polar or cartesian coordinates) of the spatial distribution of radiation from an antenna as a function of angle. Source: WordNet 1.7.1 Copyright © 2001 by Princeton University. All rights reserved. |
| Domain | Definition |
Aerospace | A graphical representation of the radiation of an antenna as a function of direction. Cross sections in which radiation patterns are frequently given are vertical planes and the horizontal plane, or the principal electric and magnetic polarization planes. Also called antenna pattern, lobe pattern, coverage diagram.Two types of radiation patterns should be distinguished. They are: (a) the free-space radiation pattern which is the complete lobe pattern of the antenna and is a function of the wavelength, feed system, and reflector characteristics, and (b) the field radiation pattern which differs primarily from the free-space pattern by the formation of interference lobes whenever direct and reflected wave trains interfere with each other as is found in most surface-based radars. The envelope of these interference lobes has the same shape, but, for a perfectly reflecting surface, it has up to twice the amplitude of the free-space radiation pattern. (references) |
Source: compiled by the editor from various references; see credits. | |
(From Wikipedia, the free Encyclopedia)
In telecommunication, the term radiation pattern has the following meanings:1. The variation of the field intensity of an antenna as an angular function with respect to the axis.
Note: A radiation pattern is usually represented graphically for the far-field conditions in either horizontal or vertical plane.
2. In fiber optics, the relative power distribution at the output of a fiber or active device as a function of position or angle.
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.
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.
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.
Source: from Federal Standard 1037C and from MIL-STD-188
Source: adapted by the editor from Wikipedia, the free encyclopedia under a copyleft GNU Free Documentation License (GFDL) from the article "Radiation pattern."
Synonyms: Radiation PatternSynonyms: pattern (n), radiation diagram (n). (additional references) |
Crosswords: Radiation Pattern |
| English words defined with "radiation pattern": lobe ♦ major lobe. (references) |
| Specialty definitions using "radiation pattern": Adcock antenna, Alford loop, antenna pattern ♦ free space ♦ half-power points, half-power width, height gain ♦ lobe pattern, long-wire antenna, loop antenna ♦ radar volume, radiation lobe ♦ sectionalized vertical antenna. (references) |
| The following statistics estimate the number of searches per day across the major English-language search engines as identified by various trade publications. Hyperlinks lead to commercial use of the expression at Amazon.com. |
| Expression | Frequency per Day |
antenna radiation pattern | 9 |
| Source: compiled by the editor from various references; see credits. | |
Scrabble® Enable2K-Verified Anagrams | |
| Words within the letters "a-a-a-d-e-i-i-n-n-o-p-r-r-t-t-t" | |
-4 letters: antipredator, repatriation. | |
-5 letters: partitioned, partitioner, repartition, reradiation, retardation, trepanation, trepidation. | |
| Source: compiled by the editor from various references; see credits. SCRABBLE® is a registered trademark. All intellectual property rights in and to the game are owned in the U.S.A and Canada by Hasbro Inc., and throughout the rest of the world by J.W. Spear & Sons Limited of Maidenhead, Berkshire, England, a subsidiary of Mattel Inc. Mattel and Spear are not affiliated with Hasbro. | |
Hexadecimal (or equivalents, 770AD-1900s) (references)52 61 64 69 61 74 69 6F 6E 50 61 74 74 65 72 6E |
| Leonardo da Vinci (1452-1519; backwards) (references)
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Binary Code (1918-1938, probably earlier) (references)01010010 01100001 01100100 01101001 01100001 01110100 01101001 01101111 01101110 00100000 01010000 01100001 01110100 01110100 01100101 01110010 01101110 |
HTML Code (1990) (references)R a d i a t i o n   P a t t e r n |
ISO 10646 (1991-1993) (references)0052 0061 0064 0069 0061 0074 0069 006F 006E 0050 0061 0074 0074 0065 0072 006E |
Encryption (beginner's substitution cypher): (references)526770756786758180250678686718480 |
| 1. Definition 2. Synonyms 3. Crosswords 4. Expressions: Internet | 5. Anagrams 6. Orthography 7. Bibliography |
Copyright © Philip M. Parker, INSEAD. Terms of Use.
