High linearity 5.2-GHz power amplifier MMIC using CPW structure technology with a linearizer circuit
A built-in linearizer was applied to improve the linearity in a 5.2-GHz power amplifier microwave monolithic integrated circuit(MMIC),which was undertaken with 0.15-μm AlGaAs/InGaAs D-mode PHEMT technology. The power amplifier(PA) was studied taking into account the linearizer circuit and the coplan...
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Published in | Journal of semiconductors no. 2; pp. 33 - 37 |
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Main Author | |
Format | Journal Article |
Language | Chinese |
Published |
2010
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Subjects | |
Online Access | Get full text |
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Summary: | A built-in linearizer was applied to improve the linearity in a 5.2-GHz power amplifier microwave monolithic integrated circuit(MMIC),which was undertaken with 0.15-μm AlGaAs/InGaAs D-mode PHEMT technology. The power amplifier(PA) was studied taking into account the linearizer circuit and the coplanar waveguide(CPW) structures.Based on these technologies,the power amplifier,which has a chip size of 1.44×1.10 mm~2,obtained an output power of 13.3 dBm and a power gain of 14 dB in the saturation region.An input third-order intercept point (IIP3) of-3 dBm,an output third-order intercept point(OIP3) of 21.1 dBm and a power added efficiency(PAE) of 22% were attained,respectively.Finally,the overall power characterization exhibited high gain and high linearity,which illustrates that the power amplifier has a compact circuit size and exhibits favorable RF characteristics.This power circuit demonstrated high RF characterization and could be used for microwave power circuit applications at 5.2 GHz. |
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Bibliography: | power amplifier linearizer TP212 TN722.75 power amplifier; linearizer; MMIC; CPW CPW 11-5781/TN MMIC |
ISSN: | 1674-4926 |