ANTENTOP- 01- 2017 # 021

Experimental Window Antenna

for the 14- and 21- MHz Band

Experimental Window Antenna for

the 14- and 21- MHz Band

Yuri Pankratov, R0CBK

Credit Line: http://samlib.ru/editors/g/grachew_a_w/

The antenna is very simple for design. It needs to buy just two aluminum tubes in 40 and 10- mm in diameter and two aluminum plates (it is possible use kitchen aluminum foil instead of the plates). Others stuff for antenna may be found in amateur junk box or bought in amateur flea market. Figure 1 shows stuff for the Experimental Window Antenna. Figure 2 shows the schematic of the antenna.

Antenna elements are placed above a wooden box. Inside the box there are placed tuning capacitor and matching coils for the vertical vibrator. The tube in diameter of the 40- mm is fastened to the box with aluminum insertion as it is shown in Figure 3.

I would like create an antenna that having not defined sizes of their parts could work without ATU at the feeding terminals. I solved the question in the antenna design.

R0CBK

Figure 2

Schematic of the Experimental Window Antenna

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