Antenna Delta Loop at 144 MHz. Scheme, description

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Antenna Delta Loop at 144 MHz. Encyclopedia of radio electronics and electrical engineering

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Encyclopedia of radio electronics and electrical engineering / VHF antennas

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A three-element antenna, the schematic structure of which is shown in fig. 1a is designed to operate in the 144 MHz band. The delta shape has a number of significant advantages in comparison with "wave channel" type antennas.

144 MHz Delta Loop Antenna
Ris.1

These include greater structural rigidity and the ability to use not only a coaxial cable to power an active vibrator, but also a ribbon cable with a wave impedance of 300 ohms. Coordination of the latter with an active vibrator is schematically shown in fig. 1b.

Literature

Radio No. 11, 1970, c.60

Publication: N. Bolshakov, rf.atnn.ru

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