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UR0GT Wideband Antenna for 27- 30- MHz

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ANTENTOP- 01- 2020, # 024

UR0GT Wideband Antenna for 27- 30- MHz

 

UR0GT Wideband Antenna for 27- 30- MHz

The publication is devoted to the memory UR0GT.

 

Credit Line: Forum from:

www.cqham.ru

By: Nikolay Kudryavchenko, UR0GT

 

 

 

 

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.

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.

 

 

Figure 1 Design of UR0GT Wideband Antenna for 27- 30- MHz

 

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Last Updated:

January 30, 2021 19:51

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