I5MZY Antenna design: 13 el. 144MHz, tested in Orvieto symposium gain-contest: detailes

 

H pattren

 

V pattren

 

G F/B Z swr

element Position mm total lenght mm Ø10mm total lenght mm Ø5mm
Ref. 0.00 - 1020
DE folded 285 960 -
D1 455 - 964
D2 825 - 915
D3 1020 - 904
D4 1590 - 900
D5 1870 - 872
D6 2555 - 898
D7 3230 - 860
D8 3640 - 865
D9 4425 - 878
D10 5305 - 890
D11 6000 - 910
Data for free space. In my construction this data are valid for 20mm square boom and isoladet element mount 60mm from boom. Dipole is folded, major detailes G3SEK yagi workshop dipole construction