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Low noise high linearity ultra broadband monolithic amplifier using travelling-wave gain stages
Abstract — A 2-20 GHz two-cascaded dual stage MMIC
distributed amplifier (2-CDSDA) is presented in this paper.
It consists of two cascaded dual-stage distributed amplifiers
in order to achieve flat gain, good terminal match, low noise
figure and high output power level. The topology of this
amplifier joins the best features of the conventional
distributed amplifiers and the cascaded distributed
amplifiers. The measured small signal gain was 17+/-0.57 dB
from 2 to 20 GHz. A minimum noise figure of 3 dB was
achieved while a 14.9 dBm of output power was measured at
the 1-dB compression point. The amplifier has been
fabricated using the D01PH process provided by OMMIC.
The chip size is 2 x 1.5 mm2. |
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