Invention Grant
- Patent Title: Distributed amplifiers with controllable linearization
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Application No.: US16789998Application Date: 2020-02-13
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Publication No.: US11245366B2Publication Date: 2022-02-08
- Inventor: Jonathan Xiang Wu
- Applicant: Analog Devices, Inc.
- Applicant Address: US MA Norwood
- Assignee: Analog Devices, Inc.
- Current Assignee: Analog Devices, Inc.
- Current Assignee Address: US MA Norwood
- Agency: Knobbe, Martens, Olson & Bear, LLP
- Main IPC: H03F3/60
- IPC: H03F3/60 ; H03F1/32 ; H01L23/66 ; H03F3/45 ; H03F1/02 ; H04B1/38

Abstract:
Distributed amplifiers with controllable linearization are provided herein. In certain embodiments, a distributed amplifier includes a differential input transmission line, a differential output transmission line, and a plurality of differential distributed amplifier stages connected between the differential input transmission line and the differential output transmission line at different points or nodes. The distributed amplifier further includes a differential non-linearity cancellation stage connected between the differential input transmission line and the differential output transmission line and providing signal inversion relative to the differential distributed amplifier stages. The differential non-linearity cancellation stage operates with a separately controllable bias from the differential distributed amplifier stages, thereby providing a mechanism to control the linearity of the distributed amplifier.
Public/Granted literature
- US20210257974A1 DISTRIBUTED AMPLIFIERS WITH CONTROLLABLE LINEARIZATION Public/Granted day:2021-08-19
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