Yagi array
A Yagi-Uda array, commonly known simply as a Yagi antenna, is a directional antenna consisting of a driven element (typically a dipole or folded dipole) and additional parasitic elements (usually a so-called reflector and one or more directors). The name stems from its inventors, as the Yagi-Uda array was invented in 1926 by Shintaro Uda of Tohoku Imperial University, Japan, with a lesser role played by his colleague Hidetsugu Yagi. However the "Yagi" name has become more familiar with the name of Uda often omitted. The reflector element is slightly longer (typically 5% longer) than the driven dipole, whereas the so-called directors are a little shorter. This design achieves a very substantial increase in the antenna's directionality and gain compared to a simple dipole.
Highly directional antennas such as the Yagi-Uda are commonly referred to as "beam antennas" due to their high gain. However, the Yagi-Uda design only achieves this high gain over a rather narrow bandwidth, making it more useful for various communications bands (including amateur radio), but less suitable for traditional radio and television broadcast bands. Amateur radio operators ("hams") frequently employ these for communication on HF, VHF, and UHF bands, often constructing such antennas themselves ("homebrewing"), leading to a quantity of technical papers and software. Wideband antennas used for VHF/UHF broadcast bands include the lower-gain log-periodic dipole array, which is often confused with the Yagi-Uda array due to its superficially similar appearance. That design along with other phased arrays have electrical connections on each element, whereas the Yagi-Uda design operates on the basis of electromagnetic interaction between the "parasitic" elements and the one driven (dipole) element.

This is an excerpt from the article Yagi array from the Wikipedia free encyclopedia. A list of authors is available at Wikipedia.
The article Yagi array at en.wikipedia.org was accessed 21 times in the last 30 days. (as of: 11/18/2013)
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What is Yagi antenna (Yagi-Uda array)? - Definition from WhatIs.com
A Yagi antenna, also known as a Yagi-Uda array or simply a Yagi, is a directional antenna commonly used in communications when a frequency is above 10 M..
searchmobilecomputing.techtarget.com/definition/Yagi-antenna
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Yagi Antenna
An array of parallel, straight antenna elements, one or more driven and one ore more parasitic, was originally called a Yagi-Uda array. In recent years this has ...
www.yagiantenna.net/
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Yagi-Uda antenna - Wikipedia, the free encyclopedia
Drawing of Yagi-Uda VHF television antenna from 1954, used for analog channels 2-4, .... The Yagi-Uda array in its basic form has very narrow bandwidth, 2 - 3 ...
en.wikipedia.org/wiki/Yagi-Uda_antenna
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The Yagi-Uda Antenna - Yagi Antennas - Antenna Theory
The background on yagis (the yagi antenna) are given starting with a ... across the elements, simulating the phase progression of a plane wave across the array  ...
www.antenna-theory.com/antennas/travelling/yagi.php
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Radar Basics - Yagi Antenna
Yagi-antennas use mutual coupling between standing-wave current elements to produce a traveling-wave unidirectional pattern. It consist of an array of a dipole ...
www.radartutorial.eu/06.antennas/Yagi%20Antenna.en.html
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Yagi Antenna Gain | Directivity Front to Back Ratio - Radio ...
Antenna length: When computing the optimal positions for the various elements it has been shown that in a multi-element Yagi array, the gain is generally ...
www.radio-electronics.com/info/antennas/yagi/yagi-antenna-gain.php
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STACKING, PHASING and MATCHING YAGIS - Grantronics
Would building a bigger Yagi better suit our needs? 3. If we stack, what .... reference plane in front of the array is the same as that of all other Yagis in the array.
www.grantronics.com.au/docs/StkYagis.pdf
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Yagi-Uda antennas
A Yagi-Uda antenna is familiar as the commonest kind of terrestrial TV antenna to be .... The array factor gain of a Yagi-Uda is therefore limited to the number of ...
personal.ee.surrey.ac.uk/Personal/D.Jefferies/yagiuda.html
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Yagi-Uda antenna
Dec 1, 2011 ... In the 1926, Dr. Shintaro Uda and Dr. Hidetsugu Yagi of the Tohoku ... The second dipole in the Yagi-Uda array is the only driven element with ...
yagi-uda.com/
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The Optimized Wideband Array Yagi
A remarkable method for increasing the VSWR bandwidth of Yagi antennas as well as allowing a direct dipole feed was recently discovered by Jim Breakall, ...
www.naic.edu/~angel/kp4ao/ham/owa.html
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Yagi array in science
Yagi-Uda antenna - Wikipedia, the free encyclopedia
The Yagi-Uda array in its basic form has very narrow bandwidth, 2 - 3 percent of .... with the collaboration of Hidetsugu Yagi, also of Tohoku Imperial University.
Appendix V - Programme for Yagi-Uda array - University Publishing ...
Programme for Yagi-Uda array. By R. W. P. King. View chapter as PDF. Arrays of Cylindrical Dipoles. By R. W. P. King. Publisher: Cambridge University Press.
Low-Cost 60 GHz Printed Yagi Antenna Array | Zouhair Briqech ...
Low-Cost 60 GHz Printed Yagi Antenna Array Zouhair Briqech Electrical and Computer Engineering Concordia University Montreal, QC, Canada, H3G 1M8 ...
Electronically Steerable Yagi-Uda Microstrip Patch Antenna Array ...
The article describes a four microstrip Yagi-Uda antenna array. The array consists ... For further details please refer to the University Intellectual Property Policy.
[PDF]Electronically Steerable Yagi-Uda Microstrip Patch Antenna Array ...
Index Terms—Antenna arrays, microstrip antennas, Yagi-Uda arrays. ... This work was supported by a Grant from Griffith University, Queensland, Australia.
Yagi-Uda antennas
A Yagi-Uda antenna is familiar as the commonest kind of terrestrial TV antenna ... Well, in an end-fire array of N elements the gain is proportional to N. Consider ...
Programme for Yagi-Uda array - University Publishing Online
Appendix V - Programme for Yagi-Uda array pp. 468-470. By R. W. P. King. View chapter as PDF. Arrays of Cylindrical Dipoles By R. W. P. King. Publisher: ...
The Yagi-Uda Array - University of Nairobi
B.Sc.(Hons)(Electrical Engineering)(University of Nairobi (UoN)); ... The Yagi- Uda Array. Citation: Absaloms ... Array. Nairobi, Kenya: University of Nairobi; 1988.
What is Yagi antenna (Yagi-Uda array)? - Definition from WhatIs.com
A Yagi antenna, also known as a Yagi-Uda array or simply a Yagi, is a directional antenna commonly used in communications when a frequency is above 10 M..
Enhancing weak optical signals using a plasmonic Yagi-Uda ...
The University of Western Australia ... We have fabricated an array of 80 plasmonic Yagi-Uda nanoantennas on the cladding of an optical fiber and, by doing this ...
Books on the term Yagi array
Communications Engineering Desk Reference
Erik Dahlman, Claude Oestges, Alan C. Bovik, 2009
The Yagi array is an antenna system designed with very similar principles to the car headlamp system described in Section 2.1.5.1. Its main elements are a folded dipole, a reflector, and Table 2.1-1 Typical values for Yagi arrays operating in ...
Practical Antenna Handbook 5/e
Practical Antenna Handbook 5/e
2011
THE DEFINITIVE ANTENNA REFERENCE--FULLY REVISED AND EXPANDED!Design and build your own antennas with the help of this unique guide. Updated and revised to provide clear answers to questions frequently asked by hobbyists and electronics technicians, Practical Antenna Handbook, Fifth Edition blends theoretical concepts with hands-on experience--requi...
Microstrip Antennas: The Analysis and Design of Microstrip ...
David M. Pozar, Daniel H. Schaubert, 1995
Microstrip Yagi array Antenna for Mobile Satellite Vehicle Application John Huang, Member, IEEE, and Arthur C. Densmore Reprinted from IEEE Trans. Antennas Propaga., vol. 39, no. 7, pp. 1024-4030, July 1991. uouoeurss amuse 9 l ...
Phased Array Antennas With Optimized Element Patterns (Artech House Antennas and Propagation Library)
Phased Array Antennas With Optimized Element Patterns (Artech House Antennas and Propagation Library)
2011
Phased arrays are an important group of antennas commonly used in radar, space communication, broadcasting, and RFID (radio frequency identification) systems. This authoritative resource provides engineers with a detailed description of ideal array element characteristics to help them estimate the quality of development of real-world phased array a...
THE LONG YAGI-UDA ARRAY.
Robert J. Mailloux, HARVARD UNIV CAMBRIDGE MASS CRUFT LAB., 1965
The King-Sandler array theory is used to analyze the excitation of a surface wave along a semi-infinite Yagi array, as well as the scattering of such a wave at the end of the array.
The Electronics Handbook
Jerry C. Whitaker, 1996
A Yagi-Uda (or Yagi) antenna is a parasitic linear array that contains one driven element and one or more parasitic elements. A parasitic element is called a reflector when the radiation pattern enhancement is from the parasitic to the driver, ...
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Yagi array
What is Yagi antenna (Yagi-Uda array)? - Definition from WhatIs.com
A Yagi antenna, also known as a Yagi-Uda array or simply a Yagi, is a directional antenna commonly used in communications when a frequency is above 10 M...
searchmobilecomputing.techtarget.com/definition/Yagi-antenna
yagi-uda array | Dan's Tips
Posts about yagi-uda array written by danstips
blog.lesman.com/tag/yagi-uda-array/
YAGI-ARRAY Antenna | Sajid Baloch
Posts about YAGI-ARRAY Antenna written by Sajid Baloch
sajidb.wordpress.com/tag/yagi-array-antenna/
Knowledge Wisdom Power: Comparison between Yagi Uda Array Antenna and Aperture Antenna
Used of antenna in aircraft, Yagi uda array versus aperture antenna, Need of aperture antenna, Importance of antenna.
mysoulmatenani.blogspot.com/2013/12/yagi-uda-array-antenna.html
Yagi-Uda antenna - Wikipedia, the free encyclopedia
en.wikipedia.org/wiki/Yagi-Uda_antenna
The Creative Science Centre - by Dr Jonathan P. Hare
www.creative-science.org.uk/2by5.html
High-Efficiency 60-GHz Printed Yagi Antenna Array | Zouhair Briqech - Academia.edu
By Zouhair Briqech in Antennas and Antennas & Radio Wave Propagation. A low-cost and highly efficient printed Yagi antenna structure with high radiation efficiency is presented. The proposed prototype consists of two stacked planar layers. The
www.academia.edu/8455935/High-Efficiency_60-GHz_Printed_Yagi_Antenna_Array
Coplanar LFA Yagi Antenna
The clever application of the folded dipole loop, computer science iteration techniques and NEC simulation to Yagi-Uda design results in a panoply of practical planar Loop Fed Array, LFA Yagi antenna recipes.
www.hamradio.me/antennas/loop-fed-array-lfa-planar-yagi-uda.html
22.Yagi-style beam antenna I Ham lesson o' de day
tymkrs.tumblr.com/post/4898130360/22-yagi-style-beam-antenna-i-ham-lesson-o-de-day
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