A 38-46-GHz MMIC Doherty power amplifier using post-distortion linearization

dc.contributor 國立臺灣師範大學應用電子科技學系 zh_tw
dc.contributor.author Jeng-Han Tsai en_US
dc.contributor.author Tian-Wei Huang en_US
dc.date.accessioned 2014-10-30T09:28:44Z
dc.date.available 2014-10-30T09:28:44Z
dc.date.issued 2007-05-01 zh_TW
dc.description.abstract This letter describes the first demonstration of a fully integrated Doherty power amplifier (PA) monolithic microwave integrated circuit (MMIC) with post-distortion linearization at millimeter-wave (MMW) frequency band. The Doherty amplifier MMIC, using a 0.15-mum GaAs HEMT process, achieves a small signal gain of 7dB from 38 to 46GHz with a compact chip size of 2mm2. The saturation output power of the Doherty amplifier is 21.8dBm. The similar topology between the Doherty amplifier and post-distortion linearization makes it possible to improve efficiency and linearity simultaneously in MMW PA designs. After gate bias optimization of the main and peaking amplifier, the drain efficiency improved 6% at 6-dB output back-off and the inter-modulation distortion (IMD) of quasi Doherty amplifier can be improved 18dB at 42GHz compared with the balanced amplifier operation en_US
dc.description.uri http://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=4167940 zh_TW
dc.identifier ntnulib_tp_E0611_01_019 zh_TW
dc.identifier.issn 1531-1309� zh_TW
dc.identifier.uri http://rportal.lib.ntnu.edu.tw/handle/20.500.12235/32255
dc.language en zh_TW
dc.publisher IEEE Microwave Theory and Techniques Society en_US
dc.relation IEEE Microwave and Wireless Components Letters, 17(5), 388-390. en_US
dc.subject.other Doherty amplifier en_US
dc.subject.other millimeter-wave (MMW) en_US
dc.subject.other monolithic microwave integrated circuit (MMIC) en_US
dc.subject.other post-distortion en_US
dc.title A 38-46-GHz MMIC Doherty power amplifier using post-distortion linearization en_US