TY - JOUR
T1 - 5 GHz CMOS Quadrature VCO Using Trifilar-Transformer-Coupling Technology
AU - Cheng, Kuang Wei
AU - Tseng, Yan Ru
N1 - Publisher Copyright:
© 2016 IEEE.
PY - 2016/9
Y1 - 2016/9
N2 - A trifilar-transformer-coupling quadrature voltage-controlled oscillator (TTC-QVCO) with dual transformer-feedback technology is proposed. Compared to traditional QVCOs, the proposed TTC-QVCO provides an additional coupling path, and therefore achieves an improved quadrature phase accuracy, a lower phase noise and a wider tuning range. The TTC-QVCO, implemented in a 0.18-μm CMOS technology, exhibits a frequency tuning range of 19.6% centered at 5.4 GHz and a power consumption of 5.4 mW from a 1.35 V supply voltage. The QVCO has a measured phase noise of-120.42 dBc/Hz at 1-MHz offset and quadrature phase error of less than 2° with a FoMT of 194.3 dB.
AB - A trifilar-transformer-coupling quadrature voltage-controlled oscillator (TTC-QVCO) with dual transformer-feedback technology is proposed. Compared to traditional QVCOs, the proposed TTC-QVCO provides an additional coupling path, and therefore achieves an improved quadrature phase accuracy, a lower phase noise and a wider tuning range. The TTC-QVCO, implemented in a 0.18-μm CMOS technology, exhibits a frequency tuning range of 19.6% centered at 5.4 GHz and a power consumption of 5.4 mW from a 1.35 V supply voltage. The QVCO has a measured phase noise of-120.42 dBc/Hz at 1-MHz offset and quadrature phase error of less than 2° with a FoMT of 194.3 dB.
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U2 - 10.1109/LMWC.2016.2598225
DO - 10.1109/LMWC.2016.2598225
M3 - Article
AN - SCOPUS:84986556447
SN - 1531-1309
VL - 26
SP - 717
EP - 719
JO - IEEE Microwave and Wireless Components Letters
JF - IEEE Microwave and Wireless Components Letters
IS - 9
M1 - 7555328
ER -