THE WIDE-BAND VERTICAL RADIATOR 
By Georgiy Alekseyevich Rumyantsev (UA1DZ)

it was developed and successfully was exploited the antenna, 
which consists of eight phased wide-band vertical radiators.
Such emitters can be used and by themselves, and as the elements of spaced antennas.
Wide-band vertical radiator UA1DZ gives the maximum of emission at small angle to the horizon, 
with conducting of long-distance communications it occurs equivalent to the tri-element of " wave of [kanalu]". 
Nourishment to the emitter will be given on the coaxial cable with a wave drag of 100 Ohm.
Standing-wave ratio in the cable does not exceed 1,2 in the frequency band from 10 to 30 MHz. 

The construction of emitter UA1DZ is given in the figure. 
The fabric of antenna prepared from the wire with a diameter 2… of 3 mm.
insulating elements are depicted as red color. On the lower insulator it is wound by 6 m of coaxial cable. 
The carrying mast can be made from the pipes with diameter 40… of 50 mm, 
spacers - from the pipes with a diameter 10… of 20 mm.
above and below the wires, which form emitter, they are isolated from the mast
and they are connected friend with the friend, in the center - they are connected with the mast. 
Upper vibrator is connected to the center conductor of cable, lower - to the braiding.

[S].[SPOKOYNOVA] (UW1DC, XYL UA1DZ) Leningrad 

Traduction automatique du russe en anglais par Babel  Fish

source :

http://electronic.vladbazar.com/index.php?do=search&story=%F6%E2%E5%F2%EE%EC&subaction=search