Absolute gain (physics)
The absolute gain of an antenna, for a given direction and
polarization, is the ratio of (a) the power that would be required at the inputof an ideal isotropic radiatorto (b) the power actually supplied to the given antenna, to produce the same radiant intensityin the far-field region.
If no direction is given, the absolute
gainof an antenna corresponds to the direction of maximum effective radiated power. Absolute gain is usually expressed in dB.
Examples of absolute gain are no-
loadgain, full-load gain, and small-signal gain.
Wikimedia Foundation. 2010.
Look at other dictionaries:
Absolute gain — may refer to:*Absolute gain (physics) *Absolute gain (international relations), as a part of liberal international relations theory … Wikipedia
List of important publications in physics — Optics Book of Optics *Ibn al Haytham (Alhacen)Description: The Book of Optics (Arabic: Kitab al Manazir , Latin: De Aspectibus ) is a seven volume treatise on optics and physics, written by the Iraqi Arab Muslim scientist Ibn al Haytham… … Wikipedia
List of electronics topics — Alphabetization has been neglected in some parts of this article (the b section in particular). You can help by editing it. This is a list of communications, computers, electronic circuits, fiberoptics, microelectronics, medical electronics,… … Wikipedia
education — /ej oo kay sheuhn/, n. 1. the act or process of imparting or acquiring general knowledge, developing the powers of reasoning and judgment, and generally of preparing oneself or others intellectually for mature life. 2. the act or process of… … Universalium
Europe, history of — Introduction history of European peoples and cultures from prehistoric times to the present. Europe is a more ambiguous term than most geographic expressions. Its etymology is doubtful, as is the physical extent of the area it designates.… … Universalium
Thermodynamics — Annotated color version of the original 1824 Carnot heat engine showing the hot body (boiler), working body (system, steam), and cold body (water), the letters labeled according to the stopping points in Carnot cycle … Wikipedia
metaphysics — /met euh fiz iks/, n. (used with a sing. v.) 1. the branch of philosophy that treats of first principles, includes ontology and cosmology, and is intimately connected with epistemology. 2. philosophy, esp. in its more abstruse branches. 3. the… … Universalium
France — /frans, frahns/; Fr. /frddahonns/, n. 1. Anatole /ann nann tawl /, (Jacques Anatole Thibault), 1844 1924, French novelist and essayist: Nobel prize 1921. 2. a republic in W Europe. 58,470,421; 212,736 sq. mi. (550,985 sq. km). Cap.: Paris. 3.… … Universalium
philosophy, Western — Introduction history of Western philosophy from its development among the ancient Greeks to the present. This article has three basic purposes: (1) to provide an overview of the history of philosophy in the West, (2) to relate… … Universalium
Jewish philosophy — Colette Sirat INTRODUCTION The history of medieval Jewish philosophy can be divided into two consecutive periods. The first, beginning in the ninth century and ending roughly with the death of Maimonides in 1204, occurred in Islamic lands. The… … History of philosophy