A 0.13-µm CMOS 2.4-GHz Low-Noise Balun-Mixer

Chang-Wan KIM  Jeong-Yeon KIM  Bong-Soon KANG  

IEICE TRANSACTIONS on Electronics   Vol.E92-C   No.9   pp.1223-1225
Publication Date: 2009/09/01
Online ISSN: 1745-1353
DOI: 10.1587/transele.E92.C.1223
Print ISSN: 0916-8516
Type of Manuscript: BRIEF PAPER
Category: Microwaves, Millimeter-Waves
CMOS,  direct conversion,  low noise,  noise-cancellation,  mixer,  

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A 0.13-µm CMOS 2.4-GHz low-noise balun-mixer is proposed, where a noise-canceling transconductance stage is adopted for low-noise characteristics. A current-bleeding circuit with an LC resonator is also adopted to further improve the noise figure of the proposed balun-mixer, without additional DC power consumption. The measured results show a DSB NF of 5.5 dB over output IF frequency ranges of 10 to 100 MHz, a conversion gain of 19 dB, and an input P1 dB of -16 dBm. The proposed balun-mixer is implemented in 0.13-µm CMOS technology and consumes only 4.5 mA from a 1.5-V supply voltage.