Invention Grant
- Patent Title: Linearized distributed amplifier architecture
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Application No.: US15636800Application Date: 2017-06-29
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Publication No.: US10340858B2Publication Date: 2019-07-02
- Inventor: Kevin Wesley Kobayashi
- Applicant: Qorvo US, Inc.
- Applicant Address: US NC Greensboro
- Assignee: Qorvo US, Inc.
- Current Assignee: Qorvo US, Inc.
- Current Assignee Address: US NC Greensboro
- Agency: Withrow & Terranova, P.L.L.C.
- Main IPC: H03F3/60
- IPC: H03F3/60 ; H03F1/18 ; H03F1/22 ; H03F3/195

Abstract:
A distributed amplifier (DA) is disclosed. The DA includes a first plurality of inductive elements coupled in series forming a first plurality of connection nodes. The DA also includes a second plurality of inductive elements coupled in series forming a second plurality of connection nodes. The DA further includes a plurality of amplifier cells that each has a main transistor and a cascode transistor coupled into a cascode configuration. The cascode transistor has a current input coupled to a corresponding one of the first plurality of connection nodes. An input transistor has a control terminal coupled to a corresponding one of the second plurality of connection nodes, a current input terminal configured to provide a bias tuning for the DA, and a third current output terminal coupled to a control terminal of the main transistor and configured to provide a separate bias tuning for the DA.
Public/Granted literature
- US20180019712A1 LINEARIZED DISTRIBUTED AMPLIFIER ARCHITECTURE Public/Granted day:2018-01-18
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