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A Low-Power and High-Gain Mixer for UWB Systems
- Authors
- Seo, Jeong-Bae; Kim, Jong-Ha; Sun, Hyuk; Yun, Tae-Yeoul
- Issue Date
- Dec-2008
- Publisher
- IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
- Keywords
- CMOS; high gain; low power; mixer; subthreshold; ultra-wideband (UWB)
- Citation
- IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS, v.18, no.12, pp.803 - 805
- Indexed
- SCIE
SCOPUS
- Journal Title
- IEEE MICROWAVE AND WIRELESS COMPONENTS LETTERS
- Volume
- 18
- Number
- 12
- Start Page
- 803
- End Page
- 805
- ISSN
- 1531-1309
- Abstract
- This letter presents a CMOS double-balanced direct-conversion mixer for ultra-wideband systems. The proposed mixer employs three techniques: the subthreshold operation of transistors for the radio frequency stage reduces current dissipation in the overall mixer, a local oscillation (LO) stage using an inverter lowers the required LO amplitude, and an active load improves conversion gain. The mixer was implemented using a 0.13 mu m 1P8M CMOS process and was operated from 3.1 to 10.6 GHz. The measured results show a high conversion gain of 14.0 dB and a noise figure of 14.5 dB. In addition, the mixer performs with an input IP3 of -11 dBm and a power dissipation of 1.85 mW from a 1.2 V supply.
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Related Researcher
- Yun, Tae Yeoul
- COLLEGE OF ENGINEERING (SCHOOL OF ELECTRONIC ENGINEERING)