FIELD: physics.
SUBSTANCE: device has a magnetic current antenna (401) which uses magnetic current as a radiation source; an electric current antenna (402) which uses electric current as a radiation source; a circuit (403) for controlling the electric current/magnetic current distribution proportion, which transmits signals to the magnetic current antenna (401) and the electric current antenna (402), where the magnetic current antenna (401) and the electric current antenna (402) are arranged such that the polarised wave emitted by the magnetic current antenna (401) and the polarised wave emitted by the electric current antenna (402) cross each other at right angles. The circuit (403) for controlling the electric current/magnetic current distribution proportion controls distribution of radio waves emitted by the magnetic current antenna (401) and radio waves emitted by the electric current antenna (402).
EFFECT: reduced variation of gain.
16 cl, 27 dwg
