A simple broadband antenna. Scheme, description

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ENCYCLOPEDIA OF RADIO ELECTRONICS AND ELECTRICAL ENGINEERING
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A simple broadband antenna. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / Телевидение

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Readers are offered a simple broadband antenna operating in the meter range on 3 ... 12 channels and in the decimeter range on 24 ... 41 channels. In our city, broadcasting on the meter band is carried out with vertical polarization, and on the decimeter band - with horizontal polarization of waves.

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The antenna consists of two vibrators. The vibrator of the meter range is bent at an angle of 120 °. In front of it is a vibrator of the decimeter range (Fig. 1).

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The scan of the antenna web is shown in Fig. 2. The vibrators are bent at an angle of 90° to each other. The front view of the antenna is shown in Fig. 3, the general view is in Fig. 4. The vertical polarization antenna of the meter and horizontal decimeter ranges is shown in Fig. 5,6. The antenna sheet is made of any material (tube, rod, wire, power cable bus) with a diameter of 8 ... 20 mm. Antenna vibrators can be made separately and connected by welding or screws. The descent cable is connected at points A and B. An option for attaching to the mast and adding an antenna with a traverse with UHF directors is shown in Fig.6.

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Literature

Zherebtsov I.P. Radio engineering. - M.: Communication, 1964.
Malinin R.P. Handbook of radio amateur designer. - M.: Energy, 1973.

Authors: A. Ilyin, Lipetsk; Publication: N. Bolshakov, rf.atnn.ru

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