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- W4246342816 abstract "A vacuum-tube or solid-state radio transmitter is a source of a radio-frequency (RF) signal to be transmitted through antenna in different radio systems such as wireless communication, television (TV) and broadcasting, navigation, radar, or satellite, the information format and electrical performance of which should satisfy the corresponding standard requirements. Dr. Lee De Forest was an inventor who changed the world with electronics by inventing the vacuum tube, which he called the audion. Alexander Meissner was the first to amplify high-frequency radio signals by using a regenerative feedback in a vacuum triode. This principle of reactive coupling, which was given in its general form by Meissner in March 1913, later became the basis of the radio transmitter development. Edwin H. Armstrong is regarded as one of the foremost contributors to the field of radio engineering, being responsible for the regenerative circuit, the superheterodyne circuit, and the complete frequency-modulation radio broadcasting system. Controlled Vocabulary Terms antennas; radio frequency" @default.
- W4246342816 created "2022-05-12" @default.
- W4246342816 date "2011-06-27" @default.
- W4246342816 modified "2023-09-30" @default.
- W4246342816 title "Introduction" @default.
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- W4246342816 doi "https://doi.org/10.1002/9780470929308.ch" @default.
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