Invention Grant
- Patent Title: Capacitor compensated dual of polyphase filter
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Application No.: US16146095Application Date: 2018-09-28
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Publication No.: US10734967B2Publication Date: 2020-08-04
- Inventor: Brandon Davis , Aishwarya Balakrishnan
- Applicant: Intel Corporation
- Applicant Address: US CA Cupertino
- Assignee: Apple Inc.
- Current Assignee: Apple Inc.
- Current Assignee Address: US CA Cupertino
- Agency: Eschweiler & Potashnik, LLC
- Main IPC: H03H7/21
- IPC: H03H7/21 ; H03H7/06 ; H03H7/01

Abstract:
A polyphase filter operates to provide capacitive compensation to drive a multiphase network for generating quadrature signals. The polyphase filter can include a capacitive compensation mechanism at internal nodes. The capacitive compensation mechanism includes a first phase lag circuit between a first internal node and a second internal node and a second phase lag circuit coupled between a third internal node and a fourth internal node. The first internal node is coupled to the second internal node via a first inductor coupled to a first resistor, the second internal node is coupled to the third internal node via a second inductor coupled to a second resistor, the third internal node is coupled to the fourth internal node via a third inductor coupled to a third resistor, and the fourth internal node is coupled to the first internal node via a fourth inductor coupled to a fourth resistor.
Public/Granted literature
- US20200106413A1 CAPACITOR COMPENSATED DUAL OF POLYPHASE FILTER Public/Granted day:2020-04-02
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