Dual frequency receiver with single I/Q IF pair and mixer

A satellite receiver for multiple global navigation satellite systems (GNSS) comprising:

• a single receive radio frequency (RF) circuit having an RF bandpass substantially confined to encompass at least two GNSS at RF;
• a single in-phase and quadrature (IQ) pair of intermediate frequency (IF) sections having an IF passband;
• and
• a mixer circuit including an in-phase and quadrature (IQ) pair of mixers fed by said RF circuit and having a local oscillator with in-phase and quadrature outputs coupled to said mixers respectively, said mixer circuit operable to inject and substantially overlap two non-overlapped GNSS with each other into the IQ IF sections in the IF passband, the IF passband substantially confined to a bandwidth encompassing the thereby-overlapped GNSS.

A process of operating a wireless receiver for multiple frequency bands reception comprising:

• substantially confining an RF bandpass to encompass at least two non-overlapped such frequency bands at RF;
• injecting and substantially overlapping the at least two non-overlapped frequency bands with each other into an in-phase and in-quadrature IF passband;
• and
• confining the IF passband to encompass the thereby-overlapped frequency bands.