Abstract
A triple-band divide-by-2 LC injection-locked frequency divider (ILFD) was implemented in the TSMC 0.18 μm 1P6M CMOS process, and it uses a cross-coupled nMOS pair and two shunt 4th order LC resonators to form a 6th order resonator with three resonant frequencies. Measured data has shown that the ILFD has three locking ranges at fixed bias condition or by varactor bias switching.
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Jang, S.-L., Yang, R.-K., Chang, C.-W., & Juang, M.-H. (2009). Multi-modulus LC injection-locked frequency dividers using single-ended injection. IEEE Microwave and Wireless Components Letters, 19, 311–313.
Chuang, Y.-H., Lee, S.-H., Yen, R.-H., Jang, S.-L., Lee, J.-F., & Juang, M.-H. (2006). A wide locking range and low voltage CMOS direct injection-locked frequency divider. IEEE Microwave and Wireless Components Letters, 16(5), 299–301.
Wu, H., & Hajimiri, A. (2001). A 19 GHz 0.5 mW 0.35 μm CMOS frequency divider with shunt-peaking locking-range enhancement. In IEEE international solid-state circuits conference (pp. 412–413).
Tiebout, M. (2004). A CMOS direct injection-locked oscillator topology as high-frequency low-power frequency divider. IEEE Journal of Solid-State Circuits, 39(7), 1170–1174.
Rategh, H. R., & Lee, T. H. (1999). Superharmonic injection-locked frequency dividers. IEEE Journal of Solid-State Circuits, 34(6), 813–821.
Jang, S.-L., Huang, S.-S., Lee, J.-F., & Juang, M.-H. (2008). LC-tank Colpitts injection-locked frequency divider with record locking range. IEEE Microwave and Wireless Components Letters, 18, 560–562.
Lee, S., Jang, S., & Nguyen, C. (2012). Low-power-consumption wide-locking-range dual-injection-locked 1/2 divider through simultaneous optimization of VCO loaded Q and current. IEEE Transactions on Microwave Theory and Techniques, 60(10), 3161–3168.
Jang, S.-L., Lin, F.-B., & Huang, J.-F. (2015). Wide-band divide-by-2 injection-locked frequency divider using MOSFET mixers DC-biased in subthreshold region. International Journal of Circuit Theory and Applications, 43, 2081–2088.
Chang, C.-W., Jang, S.-L., Huang, C.-W., & Shih, C.-C. (2011). Dual-resonance LC-tank frequency divider implemented with switched varactor bias. In IEEE international symposium on VLSI design, automation and test (VLSI-DAT), 2011 (pp. 1–4).
Jang, S.-L., Wu, Z.-H., Hsue, C.-W., & Teng, H.-F. (2013). Wide-locking range dual-band injection-locked frequency divider. Microwave and Optical Technology Letters, 55(10), 2333–2337.
Jang, S.-L., Huang, L.-Y., Hsue, C.-W., & Huang, J.-F. (2015). Injection-locked frequency divider using injection mixer DC-biased in sub-threshold. IEEE Microwave and Wireless Components Letters, 25(3), 193–195.
Jang, S.-L., Chen, Y.-J., Fang, C.-H., & Lai, W. C. (2015). Enhanced locking range technique for frequency divider using dual-resonance RLC resonator. Electronics Letters, 51, 1888–1889.
Jang, S.-L., Kuo, Y.-C., Hsue, C.-W., & Juang, M.-H. (2016). A triple-band divide-by-2 CMOS injection-locked frequency divider. Analog Integrated Circuits and Signal Processing, 86, 33–38.
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The authors would like to thank the Staff of CIC for the chip fabrication and measurement supports.
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Jang, SL., Chang, CM. & Juang, MH. Divide-by-2 injection-locked frequency divider implemented with two shunt 4th-order LC resonators. Analog Integr Circ Sig Process 91, 377–383 (2017). https://doi.org/10.1007/s10470-017-0953-z
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DOI: https://doi.org/10.1007/s10470-017-0953-z