@inproceedings{8f47f03893e744c8b128ecdacf833a23,
title = "Parasitic capacitance optimization of GaAs HBT class E power amplifier for high efficiency CDMA EER transmitter",
abstract = "A Class E power amplifier (PA) for a CDMA EER transmitter is implemented with GaAs HBT technology. This paper demonstrates an efficiency improvement with a parasitic capacitance compensation circuit. In order to obtain high output power, the PA needs the large emitter size of a main transistor. The larger the emitter size, the higher the parasitic capacitance should be. In particular, the parasitic CBE affects a distortion of the input voltage signal and decreases the PA's efficiency. Using the compensation circuit, we obtain 7\% collector efficiency improvement at a similar output power level. This PA exhibits output power of 29dBm and collector efficiency of 71\% at 1.9GHz.",
keywords = "Class E, Hetero-junction bipolar transistor, Monolithic microwave integrated circuit, Power amplifier",
author = "Kim, \{Ki Young\} and Kim, \{Ji Hoon\} and Park, \{Sung Min\} and Park, \{Chul Soon\}",
year = "2007",
doi = "10.1109/RFIC.2007.380987",
language = "English",
isbn = "1424405319",
series = "Digest of Papers - IEEE Radio Frequency Integrated Circuits Symposium",
pages = "733--736",
booktitle = "Proceedings of the 2007 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2007",
note = "2007 IEEE Radio Frequency Integrated Circuits Symposium, RFIC 2007 ; Conference date: 03-06-2007 Through 05-06-2007",
}