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Journal of the Korean Institute of Electromagnetic and Science 2003;3(1):12-16.
Cascode Low Noise Amplifiers with Coplanar Waveguide Structure for Wireless LAN Application
Jong-Ho Kim1, Ki-Byoung Kim2, Jong-Chul Lee2, Jong-Heon Kim2, Byungje Lee2, Nam-Young Kim2
1RFIC Research and Education Center/Mission Technology Research Center, Kwangwoon University, R&D Dept., NEWGEN Telecom Co., LTD.
2RFIC Research and Education Center/Mission Technology Research Center, Kwangwoon University
In this paper, low noise amplifiers with coplanar waveguide structure are presented for Wireless LAN data communication application. For comparison of microwave performance, LNAs of cascode type and balanced type using cascode cell with the same substrate and same bias conditions are designed and implemented. A cascode type of LNA shows the gain of 12.45 ㏈, input return loss of 11.63 ㏈, and noise figure of 1.52㏈. A balanced type of LNA using cascode cell shows the gain of 6.58 ㏈, input return loss of 16.6 ㏈, and noise figure of 1.18 ㏈.
Key words: CPW, Cascode Cell, LNA, Balanced Type
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