Concurrent support for multiple frequency bands for satellite navigation signals

A radio frequency (RF) receiver comprising:

• a first signal path to receive a first RF signal portion;
• a controller configured to determine a first oscillator divider value and a second oscillator divider value based on a jammer frequency;
• a first frequency divider configured to output a first local oscillator signal by dividing a frequency of an oscillator signal by the first oscillator divider value;
• a second frequency divider configured to output a second local oscillator signal by dividing the frequency of the oscillator signal by the second oscillator divider value;
• a first mixer configured to downconvert the first RF signal portion on the first signal path by mixing the first RF signal portion with the first local oscillator signal to generate a first downconversion output signal on the first signal path;
• a second mixer configured to downconvert the first downconversion output signal on the first path by mixing the first downconversion output signal with the second local oscillator signal to generate a second downconversion output signal on the first signal path;
• and
• a filter configured to filter the second downconversion output signal on the first signal path to isolate an in-band signal from a jammer signal.

An apparatus for processing a radio frequency (RF) signal received at one or more antennae, the apparatus comprising:

• a first signal path;
• means for identifying a jammer frequency;
• means for selecting a first oscillator divider value and a second oscillator divider value based on the identified jammer frequency;
• means for dividing the frequency of an oscillator signal using the first oscillator divider value to generate a first local oscillator signal;
• means for dividing the frequency of the oscillator signal using the second oscillator divider value to generate a second local oscillator signal;
• means for performing a first downconversion of the first RF signal portion on the first signal path by mixing the first RF signal portion with the first local oscillator signal to generate a first downconversion output signal on the first signal path;
• means for performing a second downconversion of the first downconversion output signal on the first signal path by mixing the first downconversion output signal with the second local oscillator signal to generate a second downconversion output signal on the first signal path;
• and
• means for filtering the second downconversion output signal to isolate an in-band signal from a jammer signal.