US 11,870,397 B2
Radio frequency module and associated method with envelope tracking power supply
Shi-Wen Liu, Hsinchu (TW); Tang-Nian Luo, Hsinchu (TW); Chi-Tsan Chen, Hsinchu (TW); Chi-Kun Chiu, Hsinchu (TW); Jiann-Huang Liu, Hsinchu (TW); Peng-Ta Huang, Hsinchu (TW); Chi-Sheng Yu, Hsinchu (TW); and Hua-Shan Chou, Hsinchu (TW)
Assigned to MEDIATEK INC., Hsin-Chu (TW)
Filed by MEDIATEK Inc., Hsin-Chu (TW)
Filed on Feb. 18, 2022, as Appl. No. 17/674,985.
Prior Publication US 2023/0268887 A1, Aug. 24, 2023
Int. Cl. H03F 1/02 (2006.01); H03F 3/24 (2006.01); H04B 7/06 (2006.01)
CPC H03F 1/0233 (2013.01) [H03F 3/245 (2013.01); H04B 7/0602 (2013.01); H03F 2200/105 (2013.01); H03F 2200/451 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A radio frequency (RF) module with envelope tracking (ET) power supply in a device, the RF module comprising:
a plurality of transmitters;
an ET output; and
an ET multiplexer; wherein:
each of the plurality of transmitters comprises an RF output and an ET port, is configured for providing an RF signal to the RF output, and is further configured for providing an ET signal, which reflects an envelope of the RF signal, to the ET port; and
the ET multiplexer is coupled between said ET ports of the plurality of transmitters and the ET output, for selectively relaying one of said ET ports to the ET output.