Agile and adaptive wideband MIMO antenna isolation

摘要

The disclosed invention relates to a MIMO (multiple input, multiple output) wideband transceiver. In some cases, the MIMO wideband transceiver comprises a signal processor that outputs or receives a plurality of distinguishable data streams. A first data stream is provided to a first antenna port connected to a plurality of wideband antennas, while a second data stream is provided to a second antenna port connected to a wideband antenna. A spatial filter element configured to assign antenna weights to the plurality of wideband antennas, which cause the wideband antennas to operate in a manner that attenuates wireless signals, at a frequency range at which the wideband transmit wideband radiate, in the direction of the wideband antenna without attenuating the wireless signals in other directions. By attenuating signals extending between the plurality of wideband antennas and the wideband antenna, wideband decoupling between first and second antenna ports is achieved.

主权项

1. A transceiver, comprising:
a signal processor configured to output or receive a signal as a plurality of distinguishable data streams; a plurality of antenna ports configured to respectively convey the plurality of distinguishable data streams between the signal processor and an antenna array having a plurality of wideband antennas configured to wirelessly transmit or receive the plurality of distinguishable data streams; wherein the pluraity of antenna ports comprise:
a first antenna port configured to convey a first data stream between the signal processor and a first wideband antenna and a second wideband antenna; anda second antenna port configured to convey a second data stream between the signal processor and a third wideband antenna; and a spatial filter element configured to provide isolation between the plurality of antenna ports by operating one or more of the plurality of wideband antennas to perform beamforming that attenuates a wirelessly transmitted or received data stream in a direction of other wideband antennas within the antenna array.