TY - JOUR
T1 - Analysis and design of an X-band-to-W-band CMOS active multiplier with improved harmonic rejection
AU - Mazor, Nadav
AU - Socher, Eran
PY - 2013
Y1 - 2013
N2 - Third-harmonic current generation in a CMOS transistor is modeled and analyzed including the effects of large-signal clipping and high-frequency roll-off for the application of millimeter-wave (mm-wave) frequency multipliers. Using the model and introducing harmonic rejection techniques, a wideband 8.5-dBm output-power x9 frequency multiplier from X-band to W-band implemented using a 65-nm CMOS process is designed and characterized. Six transformer coupled differential stages are used, two tripler stages, a Ka-band amplifier, and a three-stage W-band power amplifier (PA). The circuit reaches a saturated output power of 8.5 dBm at 91.8 GHz with a 12.2% bandwidth from 88 to 99.5 GHz. Excellent suppression of unwanted harmonics is achieved with better than 31 dBc across all bandwidth. The core design occupies only 390 μ m,×\,675 μ m and consumes 438 mW from a 1.2-/2.4-V supply.
AB - Third-harmonic current generation in a CMOS transistor is modeled and analyzed including the effects of large-signal clipping and high-frequency roll-off for the application of millimeter-wave (mm-wave) frequency multipliers. Using the model and introducing harmonic rejection techniques, a wideband 8.5-dBm output-power x9 frequency multiplier from X-band to W-band implemented using a 65-nm CMOS process is designed and characterized. Six transformer coupled differential stages are used, two tripler stages, a Ka-band amplifier, and a three-stage W-band power amplifier (PA). The circuit reaches a saturated output power of 8.5 dBm at 91.8 GHz with a 12.2% bandwidth from 88 to 99.5 GHz. Excellent suppression of unwanted harmonics is achieved with better than 31 dBc across all bandwidth. The core design occupies only 390 μ m,×\,675 μ m and consumes 438 mW from a 1.2-/2.4-V supply.
KW - Amplifiers
KW - CMOS millimeter-wave (mm-wave) frequency multiplier
KW - Ka-band
KW - W-band
KW - X-band
KW - conduction angle
KW - local oscillator (LO)
KW - power amplifier (PA)
KW - transformers
UR - http://www.scopus.com/inward/record.url?scp=84877782509&partnerID=8YFLogxK
U2 - 10.1109/TMTT.2013.2252914
DO - 10.1109/TMTT.2013.2252914
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AN - SCOPUS:84877782509
SN - 0018-9480
VL - 61
SP - 1924
EP - 1933
JO - IEEE Transactions on Microwave Theory and Techniques
JF - IEEE Transactions on Microwave Theory and Techniques
IS - 5
M1 - 6493471
ER -