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A Low-Voltage High-Gain Quadrature Up-Conversion 5GHz CMOS RF Mixer

Author:
LIOU, Wan-Rone   YEH, Mei-Ling   KUO, Sheng-Hing   LIN, Yao-Chain  


Journal:
IEICE Transactions on Electronics


Issue Date:
2010


Abstract(summary):

A low-voltage quadrature up-conversion CMOS mixer for 5-GHz wireless communication applications is designed with a TSMC 0.18-mum process. The fold-switching technique is used to implement the low-voltage double balanced quadrature mixer. A miniature lumped-element microwave broadband rat-race hybrid and RLC shift network are used for the local oscillator and the intermediate frequency port design, respectively. The measured results demonstrate that the mixer can reach a high conversion gain, a low noise figure (NF), and a high linearity. The mixer exhibits improvement in noise, conversion gain, and image rejection. The mixer shows a conversion gain of 16 dB, a noise figure of 12.8 dB, an image rejection of 45 dB, while dissipating 15.5 mW for an operating voltage at 1 V.


Page:
662-669


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