Invention Grant
- Patent Title: Phase linearity enhancement techniques for digital wireless transmitters and digital power amplifiers
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Application No.: US16683690Application Date: 2019-11-14
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Publication No.: US10666306B1Publication Date: 2020-05-26
- Inventor: Sangmin Yoo , Si-Wook Yoo
- Applicant: Board of Trustees of Michigan State University
- Applicant Address: US MI East Lansing
- Assignee: Board of Trustees of Michigan State University
- Current Assignee: Board of Trustees of Michigan State University
- Current Assignee Address: US MI East Lansing
- Agency: Harness, Dickey & Pierce, PLC
- Main IPC: H04B1/04
- IPC: H04B1/04 ; H03F3/21 ; H03F1/32 ; H04L27/04 ; H04B1/00

Abstract:
A technique is presented for correcting phase distortion in a digital wireless transmitter. The technique includes: receiving an RF signal in an analog domain by a digital-to-RF modulator; amplitude modulating, the RF signal in accordance with a digital input code; and introducing delay in a signal path traversed by the RF signal before the digital-to-RF modulator using a delay circuit. The duration of the delay depends upon the value of the digital input code and substantially cancels out the phase distortion introduced by the digital wireless transmitter.
Public/Granted literature
- US20200153464A1 Phase Linearity Enhancement Techniques For Digital Wireless Transmitters And Digital Power Amplifiers Public/Granted day:2020-05-14
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