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D. Jefferies, "Yagi-Uda antennas Archived 2005-12-25 at the Wayback Machine". 2004. 'Yagi–Uda emitter used for AESA(active electronically scanned array)' low-frequency radars patents.google.com; Yagi-Uda Antenna. Simple information on basic design, project and measure of Yagi–Uda antenna. 2008; Yagi-Uda Antennas www.antenna-theory.com
English: Two Yagi-Uda television antennas. The top one consists of three parallel UHF Yagi beam antennas in front of a corner reflector. The lower one consists of a 5 element VHF antenna mounted in vertical polarization.
Moxon antenna for the 20-meter band.The antenna is the faint rectangle of wires held in tension by the bent X-shaped support frame. Moxon antenna for the 2-meter band. The Moxon antenna or Moxon rectangle is a simple and mechanically rugged two-element parasitic array, single-frequency antenna. [1]
However, a Yagi with the same number of elements as a log-periodic would have far higher gain, as all of those elements are improving the gain of a single driven element. In its use as a television antenna, it was common to combine a log-periodic design for VHF with a Yagi for UHF, with both halves being roughly equal in size.
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[ab] The simple antennas used to make a Yagi-Uda can either all be linear or bent linear antennas, or all loops (a quad antenna) or (rarely) a mixed combination of loops and straight-wire antennas. Yagi–Udas are used for rooftop television antennas, point-to-point communication links, and long distance shortwave communication using skywave ...
A short antenna pole next to a house Multiple Yagi TV aerials. Antennas are commonly placed on rooftops and sometimes in attics. Placing an antenna indoors significantly attenuates the level of the available signal. [19] [20] Directional antennas must be pointed at the transmitter they are receiving; in most cases great accuracy is not needed ...
Yagi–Uda antenna design for communication at a wavelength of λ. Shintaro Uda ( 宇田 新太郎 , Uda Shintarō , June 1, 1896 – August 18, 1976) was a Japanese inventor, and assistant to Professor Hidetsugu Yagi at Tohoku Imperial University , where together they invented the Yagi–Uda antenna in 1926.