Antenna Free 3D Model

Technology

Download Free 3D Models. Discover a diverse collection of free 3D models, perfect for projects ranging from game design to 3D printing. Whether you're searching for models of cars, vehicles, or architectural elements, we offer high-quality assets such as 3D models for print, free models for cars, and a wide variety of other 3D designs. Our library includes everything from free studio models to resources for sketching up detailed projects, catering to both beginners and professionals alike. Download detailed 3D objects for free and explore options for car modeling, 3D printing, and more. Enhance your designs effortlessly with our free 3D modeling resources. In radio engineering, an antenna or aerial is the interface between radio waves propagating through space and electric currents moving in metal conductors, used with a transmitter or receiver. In transmission, a radio transmitter supplies an electric current to the antenna's terminals, and the antenna radiates the energy from the current as electromagnetic waves (radio waves). In reception, an antenna intercepts some of the power of a radio wave in order to produce an electric current at its terminals, that is applied to a receiver to be amplified. Antennas are essential components of all radio equipment. An antenna is an array of conductors (elements), electrically connected to the receiver or transmitter. Antennas can be designed to transmit and receive radio waves in all horizontal directions equally (omnidirectional antennas), or preferentially in a particular direction (directional, or high-gain, or “beam” antennas). An antenna may include components not connected to the transmitter, parabolic reflectors, horns, or parasitic elements, which serve to direct the radio waves into a beam or other desired radiation pattern. The first antennas were built in 1888 by German physicist Heinrich Hertz in his pioneering experiments to prove the existence of waves predicted by the electromagnetic theory of James Clerk Maxwell. Hertz placed dipole antennas at the focal point of parabolic reflectors for both transmitting and receiving. Starting in 1895, Guglielmo Marconi began development of antennas practical for long-distance, wireless telegraphy, for which he received a Nobel Prize.

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