antenna effective length
21navigation — navigational, adj. /nav i gay sheuhn/, n. 1. the act or process of navigating. 2. the art or science of plotting, ascertaining, or directing the course of a ship, aircraft, or guided missile. [1520 30; < L navigation (s. of navigatio) a voyage.… …
22Radiation resistance — is that part of an antenna s feedpoint resistance that is caused by the radiation of electromagnetic waves from the antenna. The radiation resistance is determined by the geometry of the antenna, not by the materials of which it is made. It can… …
23Tesla coil — at Questacon the National Science and Technology center in Canberra, Australia Uses Application in educational demonstrations, novelty lighting, as well as music Inventor …
24Last mile — The last mile is the final leg of delivering connectivity from a communications provider to a customer. Usually referred to by the telecommunications and cable television industries, it is typically seen as an expensive challenge because fanning… …
25electromagnetic radiation — Physics. radiation consisting of electromagnetic waves, including radio waves, infrared, visible light, ultraviolet, x rays, and gamma rays. [1950 55] * * * Energy propagated through free space or through a material medium in the form of… …
26Tor missile system — Infobox Weapon name= 9K330 Tor NATO reporting name: SA 15 Gauntlet caption= 9K330 TLAR origin= flagcountry|Soviet Union type= Tracked SAM system is ranged= is bladed= is explosive= is artillery= is vehicle=yes is missile= is UK=yes service=… …
27Sukhoi Su-30MKK — Infobox Aircraft name=Su 30MKK caption= Venezuelan Su 30MK2 type= Multirole Fighter, Strike fighter, Heavy class fighter manufacturer=KnAAPO designer=Sukhoi first flight= introduced=December 2000 retired= status=Active service primary user=People …
28telecommunication — [tel΄ə kə myo͞o΄ni kā′shən] n. [also pl., with sing. or pl. v.] communication by electronic or electric means, as through radio, telephone, telegraph, television, or computers * * * tel·e·com·mu·ni·ca·tion (tĕlʹĭ kə myo͞o nĭ kāʹshən) n. 1. The… …
29Messerschmitt Me 262 — Me 262 Schwalbe Messerschmitt Me 262A Role …
30Skin effect — Skin depth redirects here. For the depth (layers) of biological/organic skin, see skin. Skin effect is the tendency of an alternating electric current (AC) to distribute itself within a conductor with the current density being largest near the… …
