Patent ID: 9379432
Filing Date: 2016-06-28
CPC Classification: H01Q

Claim Text:
1. An antenna device, comprising: a ground plate to which first and second antennas are connected, each antenna including a radiating element and a ground terminal, with one of the first and second antennas being powered, the first antenna and the second antenna being each disposed in adjacent sides of the ground plate in a same plane as that of the ground plate, the adjacent sides being substantially orthogonal to each other, wherein the ground plate is configured to include: a slit comprising a first slit portion and a second slit portion, the slit being configured to reduce coupling of the first and second antennas, the first slit portion extending from a portion in which the ground terminal of one antenna of the first and second antennas is connected to the ground plate, in a direction along the ground terminal, and the second slit portion extending the first slit portion in a direction along the radiating element and a first side portion of the ground plate, and a conductor extending from the ground plate in a direction toward the one antenna as a part of the ground terminal of the one antenna, wherein a combined length of the first slit portion and second slit portion is in a range from 0.1 wavelength to 0.2 wavelength for a radio wave used by the antenna device.