FIELD: antenna engineering; radio-communication systems operating in short-wave band.
SUBSTANCE: proposed circular phased antenna array is characterized in that it is free from drawbacks typical of its prior art, has easily switched-over pattern-forming circuit of array and power splitter of transmitter, and its antennas are supplied with power over ring circuit at frequency band over 7 MHz and over arc circuit at frequency band below 7 MHz, the latter circuit using antenna array radiators in the form of pair of diametrically opposite cardioid-pattern antennas; transfer from circular array to arc one takes place due to changing power supply circuit arrangement (its switching and changing phase shift).
EFFECT: enhanced stability of array characteristics throughout entire short-wave band, more effective use of its aperture.
2 cl, 10 dwg
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