US 12,107,618 B2
Converged radio frequency front-end architecture
David Richard Pehlke, Westlake Village, CA (US)
Assigned to Skyworks Solutions, Inc., Irvine, CA (US)
Filed by Skyworks Solutions, Inc., Irvine, CA (US)
Filed on Dec. 28, 2020, as Appl. No. 17/134,994.
Claims priority of provisional application 62/958,849, filed on Jan. 9, 2020.
Prior Publication US 2021/0218434 A1, Jul. 15, 2021
This patent is subject to a terminal disclaimer.
Int. Cl. H04L 12/00 (2006.01); H04B 1/44 (2006.01); H04L 5/14 (2006.01)
CPC H04B 1/44 (2013.01) [H04L 5/14 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A switching circuit for switching radio frequency signals, comprising:
a first filter configured to filter first radio frequency signals in a first frequency band that is a first cellular band adjacent to a second frequency band, the second frequency band including a first Wi-Fi region adjacent to the first frequency band and a second Wi-Fi region, the second Wi-Fi region spaced from the first frequency band by at least a portion of the second Wi-Fi region, a second filter configured to filter second radio frequency signals in the second Wi-Fi region, a third filter configured to filter third radio frequency signals in a third frequency band that is a second cellular band adjacent to the second Wi-Fi region and spaced from the first Wi-Fi region by at least a portion of the second Wi-Fi region, and a fourth filter configured to filter fourth radio frequency signals in the first Wi-Fi region, and
a plurality of switches configured to concurrently route received radio frequency signals from a common cellular/wireless local area network antenna in either of 1) a first mode through the first and second filters to concurrently pass signal content in the first cellular band and the second Wi-Fi region while blocking signal content in the second cellular band and the first Wi-Fi region or 2) a second mode through the third and fourth filters to concurrently pass signal content in the second cellular band and the first Wi-Fi region while blocking signal content in the first cellular band and the second Wi-Fi region.