The Double Dipole Simple antenna with tapering elements
is easy to do and easy to tune. The antenna has enough large sizes.
However, diagram directivity of the antenna is similar to diagram
directivity of two three element YAGI antennas placed in position
reflector to reflector. Inductor at the antenna does match the
antenna input impedance with 50- Ohm coaxial cable. Length of
the jumper (it has 5- cm length) between the V- dipoles allows
as well influence to the input impedance of the antenna. Double
dipole antenna may be useful when there is place for installation
of this one. Design of the Double Dipole Antenna shown on the
MMANA model shows antenna made from aluminum tube.
Of course, it is possible use usual wire for the antenna. File
MMANA allows play with the antenna according to the height above
the ground and the material of the antenna.
Figure 2 shows Z of the Double
Dipole antenna for 50- MHz Band. Figure 3 shows SWR of the Double
Dipole antenna for 50- MHz Band. Figure 4 shows DD of the Double
Dipole antenna for 50- MHz Band.
73! de RN3DEK