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W-band MMIC Low Noise Amplifier for Millimeter-wave Seeker using Tuner System  

An, Dan (Defense Agency for Technology and Quality)
Kim, Sung-Chan (Dept. of EE, Hanbat National University)
Rhee, Jin-Koo (Millimeter-wave INnovation Technology research center, Dongguk University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea TC / v.48, no.11, 2011 , pp. 89-94 More about this Journal
Abstract
In this paper, we developed the W-band MMIC low noise amplifier for the millimeter-wave seeker using the tuner system. The MHEMT devices for MMIC LNA exhibited DC characteristics with a drain current density of 692mA/mm, an extrinsic transconductance of 726mS/mm. The current gain cutoff frequency(fT) and maximum oscillation frequency($f_{max}$) were 195GHz and 305GHz, respectively. The fabricated W-band low noise amplifier represented S21 gain of 7.42dB at 94 GHz and noise figure of 2.8dB at 94.2 GHz.
Keywords
Low noise amplifier; Tuner system; MHEMT; MMIC; W-band;
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