Converged radio frequency front-end architecture

A radio frequency circuit comprising:

• a plurality of filters including a first filter having a passband in a first wireless wide area network band adjacent to a wireless local area network band, the wireless local area network band including a first region adjacent to the first wireless wide area network band and a second region spaced from the first wireless wide area network band by at least a portion of the first region, a second filter having a passband in the second region, a third filter having a passband in a second wireless wide area network band adjacent to the second region and spaced from the first region by at least a portion of the second region, and a fourth filter having a passband in the first region;
• and
• a plurality of switches configurable in at least either of 1) a first mode where a common wireless wide area network/wireless local area network antenna is connected with the first filter and the second filter, or 2) a second mode where the antenna is connected with the third filter and the fourth filter.

A method of operating a radio frequency circuit, the method comprising:

• in response to first instructions, using a control circuit to set a plurality of switches in a first mode in which a common wireless wide area network/wireless local area network antenna is connected to receiver circuitry through i) a first filter having a passband in a first wireless wide area network band adjacent to a wireless local area network band, the wireless local area network band including a first region adjacent to the first wireless wide area network band and a second region spaced from the first wireless wide area network band by at least a portion of the first region, and through ii) a second filter having a passband in the second region;
• in response to second instructions, using the control circuit to set the plurality of switches in a second mode in which the antenna is connected to the receiver circuitry through i) a third filter having a passband in a second wireless wide area network band adjacent to the second region and spaced from the first region by at least a portion of the second region, and through ii) a fourth filter having a passband in the first region.