Design and Tuning of Coupled-LC mm-Wave Subharmonically Injection-Locked Oscillators

G. Mangraviti, K. Khalaf, Bertrand Parvais, Kristof Vaesen, V. Szortyka, Gerd Vandersteen, Piet Wambacq

Onderzoeksoutput: Article

9 Citaten (Scopus)


This paper analyzes and demonstrates the use of coupled-LC tanks to enlarge the locking range (LR) of millimeter-wave (mm-wave) subharmonically injection-locked oscillators. Design guidelines are derived from a simplified analysis. Different techniques are proposed to tune the coupled-LC tank. A mm-wave subharmonically injection-locked quadrature voltage-controlled oscillator in 40-nm CMOS verifies the proposed approach. The LR is larger than 2 GHz over a 55-63-GHz tuning range. An on-chip envelope detector facilitates the tuning of the coupled-LC tank. The phase noise and the quadrature-phase imbalance are uniform over almost the whole LR.
Originele taal-2English
Pagina's (van-tot)2301-2312
TijdschriftIEEE Transactions on Microwave Theory and Techniques
Nummer van het tijdschrift7
StatusPublished - 1 jul 2015


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