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A 5.2 GHz CMOS Low Noise Amplifier with High-Q Inductors Embedded in Wafer-Level Chip-Scale Package

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8 Author(s)
Fukuda, S. ; Tokyo Inst. of Technol., Yokohama ; Ito, H. ; Itoi, K. ; Sato, M.
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This paper presents a low noise amplifier (LNA) with high-Q inductors in a wafer-level chip-scale package (WL-CSP) process. Q-factor of inductors has big impacts on characteristics of LNAs, thus we investigate availability of WL-CSP high-Q inductors. A common-source LNA with inductive degeneration is used for discussion. The 5.2 GHz LNA with WL-CSP inductors provides a noise figure of 1.7 dB which is 1.5 dB smaller than that with on-chip inductors.

Published in:

Radio-Frequency Integration Technology, 2007. RFIT 007. IEEE International Workshop on

Date of Conference:

9-11 Dec. 2007