Antenna Yagi–Uda
Adumbraito antennae televisificae Yagi–Uda VHF ex anno 1954, canalibus analogis 2–4 et 54–72 MHz (canalibus Americanis) adhibita. Cui sunt quinque elementa: tres directores (laeva), unus reflector (dextra), et elementum actum quod est dipolus plicatus qui cum 300 Ω twin lead feedline congruit.
Hodierna antenna televisifica Yagiensis magni lucri UHF cum septendecim directoribus et uno reflectore (in quattuor virgis consistente) antennae reflectoris angulorum similis.
Antenna Yagi–Uda trium elementorum ad communicationem per spatia longinqua (unda caelorum) in regionibus undarum brevium a statione idiotica adhibita. Elemento longo, reflectori(laeva), elemento acto (media), et directori brevi (dextra), est laqueus ut dicitur (proprie circuitus LC parallelus), qui secundum eorum conductores quoque latere inseruntur, ut antenna in pluribus quam uno spatio frequentiarum adhibeatur sinentes.
Antenna Yagi–Uda, vulgo antenna Yagiensis[1] appellata, est antenna directionalis quae in multis elementis parallelis recta linea positis consistit,[2] plerumque dipolis dimidii undae virgis metallis factis.[3] Antennae Yagi–Uda consistunt in uno elemento acto ad transmittorem vel receptorem radiophonicum per lineam transmissionis conecto, atque additis "elementis parasiticis," quae ad transmittorem vel receptorem non conectuntur; quod est reflector et unus aut plures directores.[3][4][5]
Quae antenna inventa est anno 1926 a Shintaro Uda in Universitate Imperiali Tohokuensi in Iaponia et Hidetsugu Yagi socio.[6]
Nexus interni
Notae[recensere | fontem recensere]
Bibliographia[recensere | fontem recensere]
- Balanis, Constantine A. 2011. Modern Antenna Handbook. John Wiley and Sons. ISBN 1118209753. Google Books.
- Brittain, J. E. 1997. Scanning the Past, Shintaro Uda and the Wave Projector. Proc. IEEE Maius: 800–01.
- Brown, Louis. 1999. A radar history of World War II: technical and military imperatives. CRC Press. ISBN 0-7503-0659-9.
- Graf, Rudolf F. 1999. Modern Dictionary of Electronics. Ed. 7a. Newnes. ISBN 0080511988.
- Pozar, David M. 1997. Beam Transmission Of Ultra Short Waves: An Introduction To The Classic Paper By H. Yagi. Proceedings of the IEEE 85(11): 1857–63. doi:10.1109/JPROC.1997.649661.
- Pozar, David M. 2001. Microwave and RF Design of Wireless Systems. John Wiley & Sons. ISBN 978-0-471-32282-5.
- Uda, Shitaro. 1925. On the Wireless Beam of Short Electric Waves. Journal of the IEE of Japan, December:. 1128. Institute of Electrical Engineers of Japan. Textus.
- Uda, Shintaro. 1927. High angle radiation of short electric waves. Proceedings of the IRE 15(Maius): 377–85.
- Uda, Shintaro. 1930. Radiotelegraphy and radiotelephony on half-meter waves. Proceedings of the IRE 18(Iunius): 1047–63.
- Usami, Shozo, et Gentei Sato. 2005. Short Wave Antenna, 1924. IEEE Milestones. IEEE History Center.
- Wolff, Christian. 2010. Yagi Antenna. Radar Basics. Html.
- Yagi, H. 1928. Beam transmission of ultra-shortwaves. Proceedings of the IRE 16(Iunius): 715–40. doi:10.1109/JPROC.1997.649674.
Nexus externi[recensere | fontem recensere]
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Vicimedia Communia plura habent quae ad antennas Yagi–Uda spectant. |
- "Yagi-Uda antenna History."
- Jefferies, D. 2004. "Yagi-Uda antennas."
- Yagi-Uda Antenna (2008).
- "Yagi-Uda Antennas."