FRONT END ARCHITECTURE WITH FILTERS HAVING DIFFERENT OUT OF BAND ATTENUATION

摘要

In an embodiment, an apparatus includes a first transmit path, a second transmit path, and a switch element. The first transmit path can provide a first radio frequency (RF) signal in accordance with a nominal specification. The second transmit path can provide a second RF signal in accordance with an intermittent specification, in which the first and second RF signals are within the same transmit band. The switch element can provide the first RF signal as a transmit mode output in a first state and provide the second RF signal as the transmit mode output in a second state.

主权项

1. A front end comprising:
a first transmit filter having a pass band; a second transmit filter having approximately the same pass band as the first transmit filter, the second transmit filter configured to provide a higher out of band attenuation than the first transmit filter; and a switch element electrically coupled to the first transmit filter and the second transmit filter.