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 23 times in the last 30 days. (as of: 06/09/2013)
Images on Yagi array
Preview image:
Original:
Search results from Google and Bing
1
>30
1
Yagi-Uda antenna - Wikipedia, the free encyclopedia
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 ...
en.wikipedia.org/wiki/Yagi-Uda_antenna
2
>30
2
IEEE Xplore - Optimum design of Yagi array of loops
The purpose of this study is to determine the optimum structure of a Yagi array of circular loops subject to constraints on directivity, bandwidth, or the size of the ...
ieeexplore.ieee.org/xpls/abs_all.jsp?arnumber=1140911
3
>30
3
The Use of a Microstrip Yagi Array as - Microsoft Research
Antenna Structure of Microstrip Yagi array Antenna. • Parameter Study of ... In 1989, Dr. John Huang produced the first microstrip Yagi array antenna. • A major ...
research.microsoft.com/~dejean/Yagi_presentation.pdf
4
>30
4
STACKING, PHASING and MATCHING YAGIS - Grantronics
reference plane in front of the array is the same as that of all other Yagis in the array. Departures from these rules are possible for special applications outside ...
www.grantronics.com.au/docs/StkYagis.pdf
5
>30
5
What is Yagi antenna (Yagi-Uda array)? - Definition from WhatIs.com
A Yagi antenna also known as a YagiUda array or simply a Yagi is a unidirectional antenna commonly used in communications when a frequency is above 10 ...
searchmobilecomputing.techtarget.com/definition/Yagi-antenna
6
>30
6
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/an08.en.html
7
>30
7
The Yagi-Uda Antenna - Yagi Antennas - Antenna Theory
This leads to the array being designated as a travelling wave antenna. By choosing the lengths in this manner, the Yagi-Uda antenna becomes an end-fire array ...
www.antenna-theory.com/antennas/travelling/yagi.php
8
>30
8
G0KSC - Simple to build, High Performance Yagi and Quad ...
May 24, 2009 ... A Low-Noise 'Urban' 5 element LFA Yagi for 50MHz. If you suffer with noise from living in the city, this is an antenna for you. The LFA design ...
www.g0ksc.co.uk/component/content/article/25-the-project/107-lfa-arrived.html
9
>30
9
SM 5 BSZ - Practical Design of Very High Gain Yagi Arrays
Jul 16, 1998 ... This is the antenna I have been using as a 4x14 cross Yagi array with very good results. The slightly lower gain compared to table 3 is because ...
www.sm5bsz.com/antennas/cpudes02.htm
10
>30
10
Design and Analysis of Microstrip bi-Yagi and quad-Yagi Antenna ...
derivative of the original microstrip Yagi antenna array and can achieve a high gain and a ... higher gain (3-6 dB) than the conventional microstrip Yagi array.
users.ece.gatech.edu/~etentze/AWPL06_BiQuadYagi.pdf
Search results for "Yagi array"
Google: approx. 818.000
Yagi array in science
Yagi-Uda antenna - Wikipedia, the free encyclopedia
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 ...
Appendix V - Programme for Yagi-Uda array - University Publishing ...
Appendix V - Programme for Yagi-Uda array pp. 468-470. By R. W. P. King. View chapter as PDF. Arrays of Cylindrical Dipoles. R. W. P. King. Publisher: ...
Frequency switchable quasi-Yagi dipole array for base station ...
Macquarie University ResearchOnline. Home. Add. - List Of Titles - Frequency switchable quasi-Yagi dipole array for base station antennas. Please use this ...
Electronically Steerable Yagi-Uda Microstrip Patch Antenna Array
Electronically Steerable Yagi-Uda Microstrip Patch Antenna Array ... Griffith University copyright notice. Copyright in individual works within the repository ...
Full Record - Griffith Research Online - Griffith University
Electronically Steerable Yagi-Uda Microstrip Patch Antenna Array ... The article describes a four microstrip Yagi-Uda antenna array. The array consists of four ...
[PDF]On Performing Interferometry on the Sun utilizing a Yagi-Uda Array ...
THE YAGI-UDA ARRAY. Between 1926 and 1929, Shintaro Uda, an assistant professor at Tohoku University, experimented with a new kind of antenna array, ...
IEEE Xplore - Optimum design of Yagi array of loops
It is also shown that the optimized Yagi array of loops may have either a directional beam in the endfire direction or a ... University of Houston, Houston, TX, USA ...
[PDF]An Extendable Solar Array Integrated Yagi-Uda UHF ... - IEEE Xplore
An Extendable Solar Array Integrated Yagi-Uda UHF ... into a deployable solar array prototype. ... facilitated their adoption into many university and business ...
MSpace at the University of Manitoba: Characteristics of loop yagi ...
Jan 15, 2013 ... MSpace at the University of Manitoba > ... dc.title, Characteristics of loop Yagi arrays with loaded elements and their application to short backfire ...
[PDF]Performance of Circular Yagi-Uda Arrays for Beamforming ...
Minufiya University. Menouf, Egypt. Abstract—In this paper, a circular Yagi-Uda array (CYUA) for smart antenna applications is designed using the lengths and ...
Books on the term Yagi array
Microstrip Antennas: The Analysis and Design of Microstrip ...
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. 1024-1030, July 1991. Fig. 8. Integrated MSAT ...
Communications Engineering Desk Reference
Communications Engineering Desk Reference
Erik Dahlman, Claude Oestges, Alan C. Bovik, 2009
One of the more common domestic arrays is the Yagi-Uda array used for the reception of television signals. ... Its main elements are a folded dipole, a reflector , and Table 2.1-1 Typical values for Yagi arrays operating in the TV band.
Computational Electromagnetics For RF and Microwave Engineering
Computational Electromagnetics For RF and Microwave Engineering
David B. DAvidson, 2005
5.3 A wire antenna array: the Yagi-Uda antenna In the preceding section, we discussed how to specify feed models, as well as the importance of checking that the analysis has converged. However, the thin-wire half-wavelength dipole is not a ...
Printed Antennas for Wireless Communications
Printed Antennas for Wireless Communications
Rod Waterhouse, 2008
In this section, the application of the microstrip-fed quasi-Yagi antenna as an array antenna is explored. The antenna's broad ... The conceptual architecture of an active two-dimensional quasi-Yagi array is shown in Figure 3.27. Because the ...
Antenna Theory: Analysis and Design
Antenna Theory: Analysis and Design
Constantine A. Balanis, 2012
1857-1863, November 1997. . R. M. Fishender and E. R. Wiblin, “Design of Yagi Aerials,” Proc. IEE (London), pt. 3, Vol. 96, pp. 5—12, January 1949. . C. C. Lee and L.-C. Shen, “Coupled Yagi arrays,” IEEE Trans. Antennas Propagat., Vol.
Development of Google searches


Blog posts on the term
Yagi array
Communication System 207.6 (Yagi-Array Antenna) | ownlearning
muhammadarifin.edublogs.org/2013/02/16/communication-system-207-6-yagi-array-antenna/
KB5WIA Amateur Radio: EME and Satellite Antenna Mount
Mike in Texas emailed me recently to ask about the construction of the antenna mount that I use with the Yaesu G-5500 rotator. The mount allows for two 2m yagis to be used on the same az/el rotator as a 70cm yagi.
kb5wia.blogspot.com/2013/05/eme-and-satellite-antenna-mount.html
2mEME_AZEL_Array_Test: 2m EME AZEL Array = Initial Test
2m EME Azimuth Elevation Array VK4AMG 27May13 After a good start to the world of JT65 EME contacts in 2011, reliable performance was difficult to find. My setup was a modest 12 over 12 YAGI (6m boom) with fixed elevation.
vk4amgtestazelarray.blogspot.com/2013/05/2m-eme-azel-array-initial-test.html
24 Year Old Yagi | | Radio Structures Ltd
24 Year Old Yagi out in all elements a returning client updating their telecoms system and returned this pair of Yagi to us... what else would we do with them?
www.radiostructures.com/blog/24-year-old-yagi/
Design and Analysis of Printed Yagi-Uda Antenna and Two-Element Array for WLAN Applications
International Journal of Antennas and Propagation is a peer-reviewed, open access journal that publishes original research articles as well as review articles in all areas of antennas and propagation.
www.hindawi.com/journals/ijap/2012/651789/
LETZ SHARE OUR KNOWLEDGE !
Yagi-uda antenna 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.
shivendrareddy.blogspot.com/2013/03/yagi-uda-antenna-ayagi-uda-array.html
SP5G » Monoband yagi for 80 meters y 40 meters
sp5g.net/2012/03/13/monoband-yagi-for-80-meters-y-40-meters/
stacking or not yagi
hi all im going to start getting really into the vhf uhf ssb work , i have not got any antenna for this as yet, im sort of looking to try and keep it small looking with in the air, but. so would it be better to do this say, a dual band vhf uhf antenna 5 ele vhf 8 uhf but to have it x 2 antennas like a 5 over 5 with the 8 over 8 or would it be best just to go for an even longer antenna with dual band spec with out the stacking, would i get better gain on a stacked antenna
forums.qrz.com/showthread.php?393414-stacking-or-not-yagi
Kilpisjärvi Atmospheric Imaging Receiver Array: The Kiruna Demonstrator Array
As we wrote earlier, we went to Kiruna last week as part of the planning for the demonstrator array work. The Kiruna EISCAT Demonstrator Array is a phased array of 48 Yagi antennas, arranged in either a 4×12 grid or 4×6 grid.
kaira.sgo.fi/2013/05/the-kiruna-demonstrator-array.html
The 'Loop Fed Array' Yagi Antenna Feed System
Justin Johnson G0KSC makes public details of the LFA ‘Loop Feed Array’
www.southgatearc.org/news/may2009/g0ksc_loop_fed_array.htm
123