Seon-eui Hong, E. Nam, Jong-Won Lim, H. Ahn, Hae-cheon Kim, J. Pack
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Preamplifier design with narrow band for fiber-optic millimeter-wave wireless LAN
A narrow-band preamplifier for fiber-optic millimeter-wave wireless system is presented based on a fully stabilized pseudomorphic high electron mobility transistor (PHEMT) 0.12 /spl mu/m technology. The preamplifiers are designed with shunt feedback and T-section matching networks. These matching networks are realized narrow-band filtering function. A single 4/spl times/1.5 mm chip, with four amplifying stages, shows transimpedance gain of 53 dB/spl Omega/, with idB/spl Omega/, ripple around the center frequency.
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