公开(公告)号：US11025195B2

公开(公告)日：2021-06-01

申请号：US16375765

申请日：2019-04-04

Applicant: QUALCOMM Incorporated

Inventor： Wu-Hsin Chen ,  Rui Xu ,  Marco Vigilante ,  Li Liu ,  Xiaotie Wu

IPC: H03B5/12 ,  H03F3/195 ,  H03D7/00 ,  H03F3/347 ,  H03F3/193 ,  H03F3/45 ,  H03D7/12

Abstract: In certain aspects, an apparatus includes a transformer including an input inductor and an output inductor, wherein the input inductor is magnetically coupled to the output inductor. The apparatus also includes a transconductance driver configured to drive the input inductor based on an input signal. The apparatus further includes a feedback circuit configured to detect an output voltage swing at the output inductor, generate a regulated voltage at the input inductor, and control the regulated voltage based on the detected output voltage swing.

公开(公告)号：US12047051B2

公开(公告)日：2024-07-23

申请号：US17367667

申请日：2021-07-06

Applicant: QUALCOMM INCORPORATED

Inventor： Marco Vigilante ,  Chinmaya Mishra

IPC: H03H7/06 ,  H01Q1/50 ,  H03H7/09 ,  H03H7/38 ,  H03H7/01

CPC classification number: H03H7/06 ,  H01Q1/50 ,  H03H7/09 ,  H03H7/38 ,  H03H2007/013

Abstract: A filter circuit includes a matching network having resistive and capacitive elements, and a transformer in the matching network. The transformer includes a primary side and a secondary side, and has at least one interwinding capacitance coupled from an input on the primary side to a non-inverting output on the secondary side.

公开(公告)号：US11588458B2

公开(公告)日：2023-02-21

申请号：US17127242

申请日：2020-12-18

Applicant: QUALCOMM INCORPORATED

Inventor： Marco Vigilante ,  Chinmaya Mishra

IPC: H03F3/19 ,  H03G3/30 ,  H03F3/193 ,  H03F3/21 ,  H03H11/30

Abstract: An amplifier circuit for a millimeter wave (mmW) communication system includes an amplifier coupled to a matching network, and a variable gain control circuit in the matching network, the variable gain control circuit having an adjustable gain control resistance, the adjustable gain control resistance having adjustable segments and a center node therebetween, the center node coupled to an alternating current (AC) ground.

公开(公告)号：US10784636B1

公开(公告)日：2020-09-22

申请号：US16600877

申请日：2019-10-14

Applicant: Qualcomm Incorporated

Inventor： Marco Vigilante ,  Chinmaya Mishra

IPC: H04B1/40 ,  H01P5/12 ,  H03F3/19 ,  H01R31/00 ,  H01R13/66

Abstract: An apparatus is disclosed for an asymmetrical quadrature hybrid coupler. In an example aspect, an apparatus comprises a quadrature hybrid coupler. The quadrature hybrid coupler comprises a shared port, a through port, a coupled port, and an isolated port. The quadrature hybrid coupler also comprises at least one transformer, which comprises a first inductor and a second inductor. The first inductor is connected between the shared port and the coupled port. The second inductor is connected between the isolated port and the through port. The second inductor is directly connected to the isolated port. An inductance of the first inductor is different from an inductance of the second inductor.