SHUNT-POWERED MOBILE SPIKE ANTENNA Russian patent published in 2007 - IPC H01Q9/42 

FIELD: mobile high-frequency transceiving radio centers.

SUBSTANCE: proposed antenna that needs no rigorous requirements to lighting protection of its output circuits has ground-mounted base mechanically coupled with antenna metal pole and N operating curtains disposed along generating lines of different-height straight cones; top and bottom ends of antenna N operating curtains are electrically interconnected through top and bottom collecting rings, respectively; bottom collecting ring functions as first power supply point; bottom bend points of N operating curtains are geometrically connected on circumference through bases of their first (bottom) and second cones joined together; antenna metal pole and N operating curtains are fixed in vertical position by means of set of guys; secured to shackles of bottom collecting ring by means of clasps are bottom ends of N operating curtains whose top ends are clasped to upper-sleeve flange; additional top section of pole is mechanically joined with antenna metal pole; mounted on top of additional top section of pole is upper sleeve; mechanically clasped to flange of the latter are top ends of N additional antenna curtains forming antenna power shunt which are uniformly distributed about antenna metal mast; bottom ends of N additional antenna curtains are electrically and mechanically connected to bottom ring that functions as second antenna power supply point when electrically connected to antenna counterpoises; hinged to bottom part of additional top pole section are N taut struts made of insulating material; N antenna operating curtains are attached to taut strut ends which function as upper bend point of antenna operating curtains; these N operating curtains are uniformly passed downward from top of additional upper section of pole to bottom collecting ring along generating lines of three straight conjugate cones; base of third (top) cone is joined with upper plane of second truncated cone whose bottom base is joined with bottom base of first straight cone turned upside down; top ends of N additional curtains forming antenna power shunt are electrically interconnected through top collecting ring; antenna metal pole is telescopic structure incorporating hoist with load-safety friction brake built into lower section of antenna metal pole; N antenna operating curtains and N additional ones are made of high-strength harness ARMOS reinforced by concentric silver-plated copper braid which also functions as electricity conductor of antenna operating curtains and is covered on top with additional sheath of woven ARMOS thread; all antenna guys are made of ARMOS insulating harness.

EFFECT: reduced difference in traveling-wave factors within operating frequency band and enhanced reliability of antenna in service and in transit.

1 cl, 9 dwg