AERIAL OF PORTABLE RADIO DEVICE Russian patent published in 1995 - IPC

FIELD: aerial equipment. SUBSTANCE: aerial of portable device is formed half-wave dipole in the form of cylindrical spiral and coupling element in the form of spiral line insulated from dipole which axis is either parallel or coincides with axis of radiator. Due to high coupling coefficient between radiator and coupling element input resistance of aerial has more sloping dependence of reactance on frequency and smaller resistance. EFFECT: expanded matching of aerial in wider band (as effect of operator's body on input resistance is diminished). 3 cl, 2 dwg