28-GHz CMOS Direct-Conversion RF Transmitter with Precise and Wide-Range Mismatch Calibration Techniques

A millimeter-wave direct-conversion radio-frequency (RF) transmitter requires precise in-/quadrature-phase (I/Q) mismatch calibration and dc offset cancellation to minimize image rejection ratio (IRR) and LO feedthrough (LOFT) for ensuring satisfactory output spectral purity. We present a 28-GHz CMO...

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Bibliographic Details
Main Authors: Yongho Lee, Byeonghyeon Kim, Hyunchol Shin
Format: Article
Language:English
Published: MDPI AG 2022-03-01
Series:Electronics
Subjects:
Online Access:https://www.mdpi.com/2079-9292/11/6/840