The Delta Loop antenna for 144 MHz

Three-element antenna, schematic arrangement is shown in Fig. 1A, designed for operation on the 144 MHz band. Deltora form has a number of significant advantages in comparison with the antennas of type "wave channel".

Fig.1

These include a large rigidity and the ability to use to power the active vibrator not only coaxial cable, and a belt with a characteristic impedance of 300 Ohm. Approval of the last active vibrator schematically shown in Fig. 1,b.

Literature

Radio No. 11, 1970, c.60

Publication: N. Bolshakov, rf.atnn.ru