A 5.25-GHz image rejection RF front-End Receiver With Polyphase filters |
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| Authors: | Chang-Wan Kim Sang-Gug Lee |
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| Affiliation: | Dept. of Eng., Inf. & Commun. Univ., Daejeon, South Korea; |
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| Abstract: | A 5.25-GHz image rejection (IR) radio frequency (RF) front-end receiver is proposed, which is implemented in 0.18-/spl mu/m 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. |
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