US 12,294,344 B2
Integrated circuit comprising an adaptation and filtering network including a direct current power supply stage, and corresponding adaptation and filtering process
Guillaume Blamon, Courbevoie (FR); Emmanuel Picard, Tours (FR); and Christophe Boyavalle, Triel sur seine (FR)
Assigned to STMicroelectronics International N.V., Geneva (CH)
Appl. No. 17/800,282
Filed by STMicroelectronics International N.V., Geneva (CH)
PCT Filed Feb. 15, 2021, PCT No. PCT/EP2021/053673
§ 371(c)(1), (2) Date Aug. 17, 2022,
PCT Pub. No. WO2021/165211, PCT Pub. Date Aug. 26, 2021.
Claims priority of application No. 20157674 (EP), filed on Feb. 17, 2020.
Prior Publication US 2023/0083695 A1, Mar. 16, 2023
Int. Cl. H03H 7/00 (2006.01); H03F 1/56 (2006.01); H03F 3/24 (2006.01); H03H 7/01 (2006.01)
CPC H03H 7/0115 (2013.01) [H03F 1/56 (2013.01); H03F 3/245 (2013.01); H03H 7/1758 (2013.01); H03F 2200/171 (2013.01); H03F 2200/387 (2013.01); H03F 2200/451 (2013.01)] 20 Claims
OG exemplary drawing
 
1. An integrated circuit, comprising:
a power amplifier configured to provide a signal in a fundamental frequency band;
an antenna coupled to an output of the power amplifier; and
a matching and filtering network circuit coupled between the power amplifier and the antenna, the matching and filtering network circuit comprising:
a direct current power supply stage coupled between a supply voltage node and an output node of the power amplifier,
a first section coupled between the output node of the power amplifier and an intermediate node, and
a second section coupled between the intermediate node and an input node of the antenna, each of the direct current power supply stage, the first section, and the second section comprising inductor-capacitor (LC) arrangements configured to have an impedance matched to the output of the power amplifier at the fundamental frequency band, and the LC arrangements of the direct current power supply stage and of the first section configured to have resonant frequencies adapted to attenuate harmonic frequency bands of the fundamental frequency band,
wherein the series LC arrangement of the second section is configured to have a resonant frequency in the third harmonic frequency band.