5 elements Yagi-Uda antenna

Antenna description:
5 elements Yagi-Uda design for HF/VHF spectrum;
Boom length 0.6541 Wavelength; i.e. 1.36m@144.2MHz;
Front/Rear ratio >= 23dB both E/H plane;
Gain >= 9.7 dBi; i.e. >= 7.5 dBd;
Impedance = 28.1 Ohm +/- j0.0 Ohm Flat;
(need 1.77:1 balun with 180° phase shifter);
Bandwidth >= 1% (i.e. 2MHz@144.2MHz)
SWR <= 1.02 : 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° 295FR97G280ZBW5F

dimension in wavelength:

half elements, in wavelengths:
   pos./diam.   0.0075    0.0055 

Ref   0.0000    0.2496    0.0000 
DE    0.1294    0.2164    0.0233 
D1    0.1958    0.2246    0.0000 
D2    0.3790    0.2145    0.0000 
D3    0.6541    0.1924    0.0000

dimension in mks (example @ 28.4 MHz):

half elements, in inch:
   pos./diam.   1.0000    0.8750

Ref   0.0000   36.0000   69.2500
DE   50.0000   36.0000   65.8750
D1   78.0000   36.0000   61.3750
D2  148.0000   36.0000   57.2500
D3  270.0000   36.0000   47.7500

dimension in mks (example @ 28.4 MHz):

half elements, in centimeters:
   pos./diam.   2.5000    2.0000

Ref   0.0000  100.0000  167.5000
DE  130.0000  100.0000  158.6000
D1  204.5000  100.0000  148.0000
D2  384.0000  100.0000  137.6000
D3  690.0000  100.0000  112.0000

dimension in mks (example @ 50.1 MHz):

half elements, in centimeters:
   pos./diam.   1.5500    1.1500
   
Ref   0.0000   50.0000  101.7000  
DE   60.5000   50.0000   98.0000  
D1  100.0000   50.0000   92.6000  
D2  210.0000   50.0000   86.8000  
D3  390.0000   50.0000   73.5000

dimension in mks (example @ 144.2 MHz):

half elements, in centimeters:
   pos./diam.   1.5500    1.1500
   
Ref   0.0000   51.9000    0.0000  
DE   26.9000   45.0000    4.8500  
D1   40.7000   46.7000    0.0000  
D2   78.8000   44.6000    0.0000  
D3  136.0000   40.0000    0.0000

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