A 10.8-14.5GHz 8-Phase 12.5%-Duty-Cycle Non-Overlapping LO Generator with Automatic Phase-and-Duty-Cycle Calibration for 60-GHz 8-Path-Filtering Sub-Sampling Receivers

A 10.8-14.5GHz 8-phase 12.5%-duty-cycle non-overlapping LO generator is proposed for 60-GHz 8-path-filtering sub-sampling receivers. A 4-stage ring oscillator is followed by reconfigurable injection-locked-oscillator NOR gates to generate 8-phase 12.5%-duty-cycle signals featuring automatic successi...

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Bibliographic Details
Main Authors: Phan, Khoi T., Gao, Yang, Luong, Howard C.
Format: Conference Proceeding
Language:English
Subjects:
duty-cycle calibration
injection locking
Measurement uncertainty
mm-wave
N-path
oscillator
phase calibration
Phase measurement
Power measurement
Prototypes
Radiofrequency integrated circuits
receiver
Receivers
Signal generators
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Description
Summary:A 10.8-14.5GHz 8-phase 12.5%-duty-cycle non-overlapping LO generator is proposed for 60-GHz 8-path-filtering sub-sampling receivers. A 4-stage ring oscillator is followed by reconfigurable injection-locked-oscillator NOR gates to generate 8-phase 12.5%-duty-cycle signals featuring automatic successive phase calibration and automatic frequency-domain duty-cycle calibration. The generator prototype measures minimum phase errors of ~0.1 0 and maximum 4 th -harmonic output power of -5dBm with >30dB improvement while consuming 77.8mW from a 1V supply.
ISSN:2375-0995
DOI:10.1109/RFIC54547.2023.10186134