Systems and Methods for Bandwidth Expansion and Frequency Scaling

A wireless transmitter, comprising:

• a signal processing circuit configured to generate a plurality of first and second spatial streams signals;
• a mixer driven by a local oscillator configured to selectively apply different frequency shifts to the first and second spatial streams and to up-convert the frequency shifted first and second spatial streams signals to first and second millimeter wave frequency band signals;
• a plurality of power amplifiers configured to amplify the first and second millimeter wave frequency band signals;
• a horizontally polarized multiple input multiple output (MIMO) antenna array configured to transmit the first millimeter wave frequency band signals;
• and
• a vertically polarized multiple input multiple output (MIMO) antenna array configured to transmit the second millimeter wave frequency band signals.

A wireless transmitter, comprising:

• a signal processing circuit configured to generate a plurality of spatial streams signals;
• a frequency shift circuit configured to selectively apply different frequency shifts to the spatial streams signals;
• a mixer configured to up-convert the frequency shifted spatial streams signals to millimeter wave frequency band signals;
• a plurality of power amplifiers configured to amplify the millimeter wave frequency band signals;
• a multiple output (MIMO) antenna array configured to transmit the millimeter wave frequency band signals.

A wireless receiver, comprising:

• a horizontally polarized multiple input multiple output (MIMO) antenna array configured to receive first millimeter wave frequency band signals;
• a vertically polarized multiple input multiple output (MIMO) antenna array configured to receive the second millimeter wave frequency band signals.
• a mixer configured to down-convert the first and second millimeter wave frequency band signals;
• a frequency shift circuit configured to selectively apply different frequency shifts to the first and second down-converted signals;
• a signal processing circuit configured to process the first and second frequency shifted signals.

A wireless receiver, comprising:

• a horizontally polarized multiple input multiple output (MIMO) antenna array configured to receive first millimeter wave frequency band signals;
• a vertically polarized multiple input multiple output (MIMO) antenna array configured to receive the second millimeter wave frequency band signals.
• a mixer driven by a local oscillator configured to down-convert the first and second millimeter wave frequency band signals and to selectively apply different frequency shifts to the first and second down-converted signals;
• and
• a signal processing circuit configured to process the first and second frequency shifted signals.