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10 elements Yagi-Uda antenna


Antenna description:
10 elements Yagi-Uda design for VHF spectrum;
Boom length 2.8667 Wavelength; i.e. 5.96m@144.2MHz;
Front/Rear ratio >= 23dB both E/H plane;
Gain >= 15.5 dBi; i.e. >= 13.4 dBd;
Impedance = 50.0 Ohm +/- j0.0 Ohm;
(need 1:1 balun with 180° phase shifter);
Bandwidth >= 0.2% (i.e. 300KHz@144.2MHz)
SWR <= 1.16 : 1
elements by aluminum tube T6060
Warning: this is not a tested antenna, for
home brewing select your own design then cut-try and measure.

Radiation pattern Yagi-Uda antenna model n° 230FR155G500Z

dimension in wavelength:

full elements, in wavelengths:
   pos./diam.  0.0077

Ref  0.0000    0.4820
DE   0.1193    0.4620
D1   0.2059    0.4458
D2   0.4781    0.4328
D3   0.8586    0.4224
D4   1.2592    0.4166
D5   1.6753    0.4136
D6   2.1000    0.4142
D7   2.5045    0.4146
D8   2.8667    0.4102

dimension in mks (example @ 144.2 MHz):

full elements, in centimeters:
   pos./diam.   1.6000
   
Ref   0.0000  100.2000
DE   24.8000   96.0400
D1   42.8000   92.7000
D2   99.4000   90.0000
D3  178.5000   87.8000
D4  261.8000   86.6000
D5  348.3000   86.0000
D6  436.6000   86.1000
D7  520.7000   86.2000
D8  596.0000   85.3000

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Copyright © 2008 Yagi-Uda.com, All Rights Reserved.
Created Date: Sat, 12 Apr 2008 10:10:01 z by Yagi-Uda.com
Last modified Date: December 01, 2011 17:32:11 z by Yagi-Uda.com

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