RW4HFN Compact Dipole Antenna for the 40- and 20- meter Band

RW4HFN Compact Dipole Antenna for the 40- and 20- meter Band

Credit Line: Forum from:

www.qrz.ru

By: Igor Vakhreev, RW4HFN

Compact Dipole Antenna for the 40- and 20- meter Band takes a little room and cover broad range at the bands.. Figure 1 shows design of the antenna. It is a dipole antenna that turn on to a delta shape. It allows significantly decreased the sizes of the antenna. Antenna is placed vertically to the ground. Antenna may be made from a wire in diameter of 2- 3- mm. MMANA model of the antenna was simulated with high point of the antenna at 18 meter above the ground.

File MMANA allows play with the antenna according to the height above the ground.

Figure 2 shows Z of the Compact Dipole Antenna for the 40- and 20- meter Band at 40- meter Band. Figure 3 shows SWR of the Compact Dipole Antenna for the 40- and 20- meter Band at 40- meter Band. Figure 4 shows DD of the Compact Dipole Antenna for the 40- and 20- meter Band at 40- meter Band.

Figure 5 shows Z of the Compact Dipole Antenna for the 40- and 20- meter Band at 20- meter Band. Figure 6 shows SWR of the Compact Dipole Antenna for the 40- and 20- meter Band at 20- meter Band. Figure 7 shows DD of the Compact Dipole Antenna for the 40- and 20- meter Band at 20- meter Band.

73! de RW4HFN

The MMANA model of the Compact Dipole Antenna for the 40- and 20- meter Band: http: //

www.antentop.org/025/RW4HFN_CDA_025.htm

Figure 1 Compact Dipole Antenna for the 40- and 20- meter Band

www.antentop.org

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