COMPLEX ZIGZAG-SHAPED ANTENNA Russian patent published in 1999 - IPC

FIELD: television, radio broadcasting, and communications in very-high and ultrahigh frequency bands. SUBSTANCE: antenna has first and second open turns placed in same plane one on top of other, facing each other with open ends, and interconnected through terminals of two-wire power line. Additional pairs of turns are arranged at quarter-wavelength distance from plane of one pair of turns in parallel with it whose dimensions are similar or equal to those of first pair. High-frequency power is supplied either to one of pairs or in series with each pair of turns. Power line sections in case of series connection to pairs of turns may also vary, power terminals of each pair of turns may be connected to power line either directly or through resistors. Power line may be loaded at its end into resistor; every other pair of turns may be cross-connected to power line. EFFECT: improved efficiency, extended operating frequency range. 3 cl, 3 dwg