closed antenna

См. также в других словарях:

• Loop antenna — A shortwave loop antenna A loop antenna is a radio antenna consisting of a loop (or loops) of wire, tubing, or other electrical conductor with its ends connected to a balanced transmission line. Within this physical description there are two very …   Wikipedia

• Horn antenna — Pyramidal microwave horn antenna, with a bandwidth of 0.8 to 18 GHz. A coaxial cable feedline attaches to the connector visible at top. This type is called a ridged horn; the curving fins visible inside the mouth of the horn increase the antenna… …   Wikipedia

• Fractal antenna — A fractal antenna is an antenna that uses a fractal, self similar design to maximize the length, or increase the perimeter (on inside sections or the outer structure), of material that can receive or transmit electromagnetic signals within a… …   Wikipedia

• J-pole antenna — The J pole antenna, also called the Zepp antenna (short for Zeppelin), was first invented by the Germans for use in their lighter than air balloons. Trailed behind the airship it consisted of a single element, one half wavelength long. This was… …   Wikipedia

• Direct-coupled antenna — Direct coupled Di*rect cou pled, a. Coupled without intermediate connections, as an engine and a dynamo. {Direct coupled antenna} (Wireless Teleg.), an antenna connected electrically with one point of a closed oscillation circuit in syntony with… …   The Collaborative International Dictionary of English

• замкнутая антенна — Разновидность рамочной антенны, которая представляет собой замкнутый контур произвольной конфигурации, к выводам которого подсоединена фидерная линия передатчика или приемника. [Л.М. Невдяев. Телекоммуникационные технологии. Англо русский… …   Справочник технического переводчика

• Invention of radio — Great Radio Controversy redirects here. For the album by the band Tesla, see The Great Radio Controversy. Contents 1 Physics of wireless signalling 2 Theory of electromagnetism …   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

• Media and Publishing — ▪ 2007 Introduction The Frankfurt Book Fair enjoyed a record number of exhibitors, and the distribution of free newspapers surged. TV broadcasters experimented with ways of engaging their audience via the Internet; mobile TV grew; magazine… …   Universalium

• Radio Caroline — is a European radio station that started transmissions on Easter Sunday 1964 from a ship anchored in international waters off the coast of Felixstowe, Suffolk, England. [ [http://www.radiocaroline.co.uk/history2.asp Don t Get Mad, Get Even] ] It… …   Wikipedia

• CN Tower — This article is about the CN Tower in Toronto. For the tower in Edmonton, see CN Tower (Edmonton). CN Tower CN Tower is the world s 5th tallest free standing structure.[1] …   Wikipedia