Patent ID: 9472861
Filing Date: 2016-10-18
CPC Classification: H01Q

Claim Text:
1. A multi-mode antenna, comprising: a CDMA dual-polarized antenna consisting of a plurality of linearly arranged radiation elements and used for receiving and transmitting a radio frequency signal in a CDMA system; and two MIMO dual-polarized antennas each consisting of a plurality of linearly arranged radiation elements and used for receiving and transmitting a radio frequency signal in an LTE system; wherein one of the two MIMO dual-polarized antennas is stacked in the vertical direction above the centre radiation element of the CDMA dual-polarized antenna and the other of the two MIMO dual-polarized antennas is stacked in the vertical direction below the centre radiation element of the CDMA dual-polarized antenna; and a first set of the radiation elements in the two MIMO dual-polarized antennas are nested in the radiation elements of the CDMA dual-polarized antenna such that a center position of each of the radiation elements in the first set overlaps with a center position of a corresponding radiation element of the CDMA dual-polarized antenna and each of a second set of elements in the two MIMO dual-polarized antennas is disposed between two radiation elements of the CDMA dual-polarized antenna; the distance between the lowest radiation element in the MIMO dual-polarized antenna right above the centre radiation element of the CDMA dual-polarized antenna and the top radiation element in the MIMO dual-polarized antenna right below the centre radiation element of the CDMA dual-polarized antenna is between 0.7λ1 to 1λ1, wherein, λ1 is the wavelength of a center frequency supported by the LTE MIMO dual-polarized antenna.