Ganged and switch combined systems for satellite-navigation-band filters

1. A system comprising:

a multiplexer configured to receive an input signal from an antenna and provide an output signal; and

a combined-filter circuit coupled to the multiplexer and configured to receive the output signal from the multiplexer, the combined-filter circuit including a first mid-range-band filter, a second mid-range-band filter, a satellite-navigation-band filter, and a switch coupled to the multiplexer, the switch including two or more arms that are configured to be controlled simultaneously to implement a switch-combined configuration, the switch being configured to simultaneously route the output signal to the satellite-navigation-band filter and at least one of the first mid-range-band filter or the second mid-range-band filter.

2. The system of claim 1 wherein the first mid-range-band filter is configured to support at least one of a cellular band B11, a cellular band B21, or a cellular band B32.

3. The system of claim 1 wherein the first mid-range-band filter is configured to support a cellular band B32 for receive operations and the second mid-range-band filter configured to support at least one of a cellular band B11 for receive operations or a cellular band B21 for receive operations.

4. The system of claim 1 wherein the satellite-navigation-band filter is configured to support a Global Navigation Satellite System (GNSS) cellular band.

5. The system of claim 4 wherein the GNSS cellular band includes at least one of a GPS-L1 cellular band, a GPS-L2 cellular band, or a GPS-L5 cellular band.

6. The system of claim 1 wherein the first mid-range-band filter is implemented in a ganged configuration with the second mid-range-band filter.

7. The system of claim 1 wherein the first mid-range-band filter is configured to support a band within a frequency range of 960 MHz to 1710 MHz.

8. A filter system comprising:

a first switch configured to receive a signal from a multiplexer;

a first filter coupled to the first switch and associated with a satellite-navigation band within a frequency range;

a second filter coupled to the first switch and associated with a first band within the frequency range, the first filter and the second filter being coupled to the first switch via a first common input node;

a third filter coupled to the first switch and associated with a second band within the frequency range; and

a fourth filter coupled to the first switch and combined with the third filter, the fourth filter being associated with the satellite-navigation band, the third filter and the fourth filter being coupled to the first switch via a second common input node.

9. The filter system of claim 8 wherein the first switch includes two or more arms that are configured to be controlled simultaneously.

10. The filter system of claim 8 wherein the first switch is configured to, in a first state, route the signal to the first filter and the second filter and configured to, in a second state, route the signal to the third filter and the fourth filter.

11. The filter system of claim 8 further comprising a second switch coupled to the second filter, the third filter, and a low noise amplifier, the second switch being configured to select a filtered signal from the second filter or the third filter.

12. The filter system of claim 8 wherein the frequency range is about 960 MHz to 1710 MHz.

13. The filter system of claim 12 wherein the satellite-navigation band is associated with a frequency range that is outside a frequency range associated with the first band and outside a frequency range associated with the second band.

14. The filter system of claim 8 wherein satellite-navigation band is a Global Navigation Satellite System (GNSS) cellular band.

15. The filter system of claim 8 wherein the second filter is configured to support at least one of a cellular band B11, a cellular band B21, or a cellular band B32.

16. The filter system of claim 14 wherein the GNSS cellular band includes at least one of a GPS-L1 cellular band, a GPS-L2 cellular band, or a GPS-L5 cellular band.

17. A radio-frequency module comprising:

a packaging substrate;

a multiplexer implemented on the packaging substrate and coupled to at least one of a primary antenna or a diversity antenna; and

a filter system implemented on the packaging substrate and coupled to the multiplexer, the filter system including a first mid-range-band filter, a second mid-range-band filter, a satellite-navigation-band filter, and a switch coupled to the multiplexer, the switch including two or more arms that are configured to be controlled simultaneously to implement a switch-combined configuration, the switch being configured to simultaneously route a signal to the satellite-navigation-band filter and at least one of the first mid-range-band filter or the second mid-range-band filter.

18. The radio-frequency module of claim 17 wherein the first mid-range-band filter and the satellite-navigation-band filter are coupled to the switch via a common input node.

19. The radio-frequency module of claim 17 wherein the first mid-range-band filter is configured to support a band within a frequency range of 960 MHz to 1710 MHz.

20. The radio-frequency module of claim 17 wherein the satellite-navigation-band filter is configured to support at least one of a GPS-L1 cellular band, a GPS-L2 cellular band, or a GPS-L5 cellular band.