Journal
PROCEEDINGS OF THE 2020 IEEE/MTT-S INTERNATIONAL MICROWAVE SYMPOSIUM (IMS)
Volume -, Issue -, Pages 944-947Publisher
IEEE
Keywords
Lock detector; injection locked oscillator; frequency synthesizer; frequency multiplier; millimeter wave
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This paper presents a lock detector integrated in a 60GHz band frequency multiplier with high multiplication factor. The proposed circuit detects the locking state of an injection locked oscillator. It relies on power integration besides the ILO targeted frequency. The proposed lock detector and the associated frequency multiplier presents a consumption of 61 mW and 5.2 mW respectively. The area occupied by the lock detector is less than 3% of the overall chip area. The locking detector is the cornerstone of injected oscillator calibration, and enables high-N frequency multiplication-based frequency synthesis.
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