Methods and apparatus for orthogonal stream spatial multiplexing

A receiver apparatus, comprising:

• a plurality of receive antenna circuits that input a plurality of binary switched polarization RF spatial streams and a plurality of polarization control signals, respectively, and output a plurality of binary switched polarization matched-filtered RF spatial streams, wherein each receive antenna circuit comprises first and second orthogonally polarized antenna elements that are selectively connected to a MIMO receiver based on a polarization control signal.

A method for transmitting and receiving RF spatial streams, comprising:

• transmitting multiple distinct, concurrent, co-channel RF spatial streams by differently polarizing the RF spatial streams according to different polarization control signals, each control signal associated with and synchronized to a particular RF spatial stream;
• and
• receiving multiple distinct, concurrent, co-channel RF spatial streams from a plurality of differently polarized RF spatial streams by polarization-matched-filtering the differently polarized RF spatial streams according to different polarization control signals, each control signal associated with and synchronized to a particular RF spatial stream.