A Fully Integrated Darlington-Cascode Distributed Amplifier with m-Derived Matching Sections

Yong Mu Yang, Xian Qi Lin, Jin Sheng Dong, Peng Mei

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Abstract

This letters proposes a 0.01-40GHz fully integrated Darlington-Cascode distributed amplifier (DA) in a commercial 0.15um GaAs pHEMT process. Analysis indicates that the Darlington-Cascode gain cell (DCGC) can simultaneously enhance gain, bandwidth, and output power. The first and last stage of the DA can be equivalent to two m-derived matching sections, optimizing the return loss of the input port. An on-chip DC-fed network is employed for DC biasing of the DA. The chip area of the DA is about 1.8 mm x 1.5 mm. Measurement results demonstrate that the distributed amplifier (DA) achieves a gain of 11 dB with +/- 1.5 dB flatness, 14% - 24% power-added efficiency (PAE), and 17.2 - 19.5 dBm saturated output power.
OriginalsprogEngelsk
TidsskriftI E E E Microwave and Wireless Components Letters
ISSN1531-1309
StatusAccepteret/In press - 2024

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