A low-power K-band frequency synthesizer using push-push transformer-feedback VCO in 0.18-µm CMOS technology

Author

Hsin-Chuan Chen ; Jen-Hao Cheng ; Jeng-Han Tsai ; Ming-Hang Wu ; Tian-Wei Huang

Author_Institution

Grad. Inst. of Commun. Eng., Nat. Taiwan Univ., Taipei, Taiwan

fYear

2014

fDate

6-9 Oct. 2014

Firstpage

580

Lastpage

583

Abstract

In this paper, a K-band frequency synthesizer using 0.18-μm CMOS technology is presented. To achieve low-power consumption, a transformer-feedback voltage-controlled oscillator (TF-VCO) with a cascoded current mode logic (CML) frequency divider is proposed. Furthermore, the push-push structure is selected in TF-VCO to overcome the design trade-off between operating frequency and dc power consumption of CML divider. Based on the aforementioned techniques, the measured phase noise of proposed frequency synthesizer is -114 dBc/Hz at 10 MHz offset at 21.5 GHz. The total power consumption is 20.1 mW.

Keywords

CMOS analogue integrated circuits; MMIC oscillators; circuit feedback; current-mode logic; field effect MMIC; frequency dividers; frequency synthesizers; low-power electronics; transformers; voltage-controlled oscillators; CML divider; CMOS technology; TF-VCO; cascoded current mode logic frequency divider; dc power consumption; frequency 21.5 GHz; low-power K-band frequency synthesizer; low-power consumption; operating frequency; phase noise; power 20.1 mW; push-push transformer-feedback voltage-controlled oscillator; size 0.18 mum; CMOS integrated circuits; Frequency conversion; Frequency synthesizers; Phase locked loops; Phase noise; Power demand; Voltage-controlled oscillators; current mode logic (CML); frequency synthesizer; push-push; transformer-feedback; voltage-controlled oscillator (VCO);

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Conference (EuMC), 2014 44th European

Conference_Location

Rome

Type

conf

DOI

10.1109/EuMC.2014.6986500

Filename

6986500