Patent ID: 9748658
Date: 2017-08-29
CPC Classifications: H01Q

Claim:
1. A wideband antenna comprising: a long and thin substrate including dipole antennas formed in multiple stages and arranged in a longitudinal direction, the dipole antennas each being formed of a hot element formed on one surface and an earth element formed on an opposite surface; an arc-like parasitic element provided adjacent to the dipole antenna; a branch line formed on the one surface of the substrate, connected to a hot side of a feeding point, and used for feeding the hot elements in the multiple stages; and an earth connection line formed on the opposite surface of the substrate, connected to an earth side of the feeding point, and used for feeding the earth elements in the multiple stages; further comprising: a second substrate disposed substantially perpendicular to the substrate; and a C-shape dipole antenna installed on the second substrate and surrounding the substrate wherein a polarized wave emitted from the C-shape dipole antenna is perpendicular to a polarized wave emitted from unit elements formed of the dipole antennas and the parasitic elements in the multiple stages.