FIELD: antennas for mobile communication systems. SUBSTANCE: antenna has metal tube open on one end; coaxial transmission line provided with internal and external conductors with one part of coaxial line inserted in metal tube; base surface connected to part of metal tube opposing its open end and to external conductor of coaxial transmission line; signal line connected to internal conductor that protrudes from metal tube at open end. Preferable dimensions of metal tube, coaxial transmission line, and signal line are chosen to provide for impedance of antenna corresponding to that of coaxial transmission line throughout double operating frequency band thereby making it possible to dispense with special matching circuit between signal source and antenna. EFFECT: simplified design. 16 cl, 11 dwg
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