A W-Band High-Efficiency CMOS Differential Current-Reused Frequency Doubler

Author

Juntaek Oh ; Jingyu Jang ; Choul-Young Kim ; Songcheol Hong

Author_Institution

Dept. of Electr. Eng. & Comput. Sci., Korea Adv. Inst. of Sci. & Technol., Daejeon, South Korea

Volume

25

Issue

5

fYear

2015

fDate

42125

Firstpage

307

Lastpage

309

Abstract

A W-band differential frequency doubler using a current-reuse configuration in a 65 nm CMOS process is presented in this letter. The differential current-reuse circuit with a second harmonic coupling transformer is introduced to improve conversion gain at small input powers minimizing the effect of the RF bypass capacitor. The proposed circuit achieves a conversion gain of 0.8 ~ -4.2 dB and a fundamental rejection above 19 dB in the input frequency range of 36.5~44 GHz with -4 dBm input power. It has conversion gain variation below 1 dB when the input power varies from -7.4 to 0.1 dBm at 77 GHz. The dc power consumption is 14 mW. It has the highest conversion gain with the smallest chip size of 0.22 mm² among all V-/W-band CMOS frequency doublers.

Keywords

CMOS integrated circuits; frequency multipliers; microwave integrated circuits; millimetre wave integrated circuits; power consumption; transformers; CMOS frequency doublers; RF bypass capacitor; V-band; W-band differential frequency doubler; W-band high-efficiency CMOS differential current-reused frequency doubler; differential current-reuse circuit; frequency 36.5 GHz to 44 GHz; frequency 77 GHz; gain 0.8 dB to -4.2 dB; power 14 mW; power consumption; second harmonic coupling transformer; size 65 nm; CMOS integrated circuits; Frequency conversion; Frequency measurement; Gain; Harmonic analysis; Power generation; Wireless communication; CMOS; W-band; current-reuse; frequency doubler; millimeter-waves (mm-waves); transformer;

fLanguage

English

Journal_Title

Microwave and Wireless Components Letters, IEEE

Publisher

ieee

ISSN

1531-1309

Type

jour

DOI

10.1109/LMWC.2015.2409773

Filename

7061536