Invention Grant
- Patent Title: Systematic coupling balance scheme to enhance amplitude and phase matching for long-traveling multi-phase signals
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Application No.: US15891230Application Date: 2018-02-07
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Publication No.: US10426023B2Publication Date: 2019-09-24
- Inventor: Jinbo Li , Qun Gu
- Applicant: The Regents of the University of California
- Applicant Address: US CA Oakland
- Assignee: The Regents of the University of California
- Current Assignee: The Regents of the University of California
- Current Assignee Address: US CA Oakland
- Agency: Park, Vaughan, Fleming & Dowler LLP
- Main IPC: H03H19/00
- IPC: H03H19/00 ; H05K1/02 ; H01P3/08 ; H03F3/00 ; H03F3/45 ; H01L23/52

Abstract:
The disclosed embodiments relate to the design of a system that implements a coupling balance scheme for differential signals. The system includes a set of 2N signal lines carrying N differential signal pairs, wherein the set of 2N signal lines runs parallel to each other in a planar layout. The set of 2N signal lines is organized into a set of consecutive sequences, wherein each sequence includes a pattern of twists that switch signal positions for each differential pair to cancel coupling effects with respect to other signal lines. Moreover, the positions of differential signal pairs are exchanged between consecutive sequences, so that the set of consecutive sequences includes a sequence for each possible ordering of the N differential signal pairs.
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