NADENENKO Sergey( Scientific, Radio)
Comments for NADENENKO Sergey
Biography NADENENKO Sergey
Sergei Nadenenko (1899-1968 gg.) - Great Soviet scientist, a talented radio engineer, innovator, scientific works and inventions which are widely used both in our country and abroad.
During the Civil War with. I. Nadenenko participated in the battles in the Red Army, was wounded twice. After demobilization in 1922. he was sent to study in 1929. graduated from the Physics and Mathematics of MSU. Since 1928, Mr. Sergey Ivanovich began working as a laboratory context, the Central Laboratory Narkompochtelya (later ZNIIS Narkomsvyazi). In 1929-1932,. actively participated in the construction of short-wave radio center of Moscow radio station on October, . where proposed and implemented a number of valuable inventions: the high-frequency feeder voltmeter, . original scheme of the device "reactive shunt" to adjust the feeder to the traveling wave, . automatic feeder switches, etc.,
. They were a great contribution to the technique of antenna-feeder devices.
In 1933. S. I. Nadenenko in collaboration with W. M. Khaikin proposed antenna to multiple waves, have been widely used in the practice of HF radios. Scheme feeder device antenna to multiple waves played an important role in the development of the range, and later, television antennas. S. I. Nadenenko mnogovibratornye developed wide-band antenna based on the principle of parallel in-phase power supply vibrators.
One of the major achievements with. I. Nadenenko was the invention in 1937. band antenna - a symmetrical horizontal vibrator large diameter open-wire feeder, now known as the dipole Nadenenko. This antenna has a small wave resistance, which is why its input impedance over a wide wavelength range is only slightly dependent on the wavelength. This provides a good agreement with a supply feeder more than twice the wavelength range without any adjustment. CPV dipole Nadenenko (taking into account the influence of the earth, eliminating radiation in the lower half-space) is in the range 6.12. This antenna is widely used in professional and special radio.
With. I. Nadenenko - by Band high gain antenna with aperiodic mirror. Significant role played by his work in the medium antenna, in 1941-1943. he participated in the construction of super-powerful radio broadcasting station near Samara.
Along with work in ZNIIS, where Sergei has held positions of laboratory assistant to the chief engineer, he 1932. Training activity at the Institute of Communications Engineers. After defending his doctoral dissertation in 1940. S. I. Nadenenko MEIS became an assistant professor and later chair of antennas and propagation.
. Sergei Ivanovich - the author of over 40 scientific papers, 12 authors' certificates and the monograph "antenna", which summarizes the results of his many years of work in the field of antennas.