To respectively independently receive horizontal and vertical polarized waves by suppressing the mutual connection of power feeding lines so as to improve an isolation characteristic between power feeding terminals.

Tip parts 2a and 2b branched from a power feeding line 2 to insert are formed by facing mutually opposite directions and tip parts 2a and 2b are formed by facing mutually opposite directions. A distance from a power feeding terminal 9 to the tip part 2a and a distance from the power feeding terminal 9 to the tip part 2b are set to be different lengths to make the phase difference of a radio wave to be fed with power 180°, and a distance from the power feeding terminal 9 to the tip part 2c and a distance from the power feeding terminal 9 to the tip part 2d are set to be different lengths to make the phase difference of a radio wave to be fed with power 180°. Radio waves generated at the tip part 2a and 2b faces the same direction and radio waves generated at the tip part 2c and 2d faces the same direction.