The Use of Multiple Wire Aerials

Radio Record, Volume II, Issue 22, 14 December 1928, Page 23

The Use of Multiple Wire Aerials

JN an article it has been said that six feet is the optimum distance for aerial wires to be separated. The reason for this is that the second. wire, if too close, will act as a condenser such as that which might be used in combination with a high resistance to form a "grid leak." There are then, two conductors separated from each other with an insulator. The capacity of such

TUT ANU UU UU TT a condenser can be altered by varying the distance between two conductors or plates of the condénser. Usually this is done by moving plates passing in between or out from the fixed plates. The closer the conductors are together the more strongly they act on one an-other-hence the greater the capacity of the condenser. The capacity of the aerial is therefore dependent upon the distance be tween them, and of course the capacity of any serial is one of the factors which determines the wavelength to which that aerial can be tuned most effectively.