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A 5.25-GHz image rejection RF front-End Receiver With Polyphase filters

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2 Author(s)
Chang-Wan Kim ; Dept. of Eng., Inf. & Commun. Univ., Daejeon, South Korea ; Sang-Gug Lee

A 5.25-GHz image rejection (IR) radio frequency (RF) front-end receiver is proposed, which is implemented in 0.18-μm CMOS technology. The proposed receiver adopts both a high-intermediate frequency (IF) and the double quadrature architecture to achieve high IR at 5-GHz frequency. The measured results show a power gain of 14 dB, a minimum noise figure of 7.9dB, and IIP3 of -8dBm. The measured maximum image rejection ratio is 45dBc. The receiver consumes a total of 32mA from a 1.8-V supply.

Published in:

IEEE Microwave and Wireless Components Letters  (Volume:16 ,  Issue: 5 )