US 12,113,559 B2
Multi-band radio frequency front-end device, multi-band receiver, and multi-band transmitter
Keji Cui, Shenzhen (CN); Di Li, Shenzhen (CN); and Lei Lu, Shanghai (CN)
Assigned to HUAWEI TECHNOLOGIES CO., LTD., Shenzhen (CN)
Filed by Huawei Technologies Co., Ltd., Shenzhen (CN)
Filed on May 11, 2023, as Appl. No. 18/315,896.
Application 18/315,896 is a continuation of application No. 17/360,247, filed on Jun. 28, 2021, granted, now 11,683,054.
Application 17/360,247 is a continuation of application No. PCT/CN2018/125837, filed on Dec. 29, 2018.
Prior Publication US 2023/0283307 A1, Sep. 7, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. H04B 1/04 (2006.01); H04B 1/00 (2006.01); H04B 1/06 (2006.01); H04B 1/40 (2015.01); H04B 1/30 (2006.01)
CPC H04B 1/0458 (2013.01) [H04B 1/0057 (2013.01); H04B 2001/0416 (2013.01); H04B 2001/307 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A multi-band radio frequency front-end device, comprising:
a first amplifier operable in a first band;
a second amplifier operable in a second band, wherein a frequency of the first band is higher than a frequency of the second band;
a first matching network, coupled to the first amplifier; and
a second matching network, coupled to the second amplifier, wherein routing of the first matching network and routing of the second matching network within a layout are annular and nested.