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Antentop is FREE e-magazine devoted to Antennas and Amateur Radio an
Special page devoted to
UR0GT Wideband Antenna for 27- 30- MHz
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ANTENTOP-
01- 2020, # 024 |
UR0GT Wideband Antenna for 27- 30- MHz |
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UR0GT Wideband
Antenna for 27- 30- MHz
The publication is devoted to the memory
UR0GT. |
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Credit Line: Forum from: www.cqham.ru
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By: Nikolay
Kudryavchenko, UR0GT |
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It is simple vertical antenna
that has low SWR at the 27- 30- MHz.
The antenna has 50- Ohm input impedance. Center frequency with
low SWR may be adjusted with help of variable capacitor in 20-
30- pF. Distance between the coupling
loop and the radiator may be in 2- 3- cm, it is not critical.
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As well it is not critical
the diameter of the vertical antenna and diameter of the wire
in coupling loop because the variable capacitor dopes the main
match the coaxial cable with the antenna. At the feeding end of
the coaxial cable should be installed several ferrite ring- it
is needs to isolate the coupling loop from the influence of the
coaxial cable. |
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Figure 1 Design of UR0GT
Wideband Antenna for
27- 30- MHz |
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Page- 61 |
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Last Updated:
January 30, 2021 19:51
