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Optimum operation of asymmetrical-cells-based linear Doherty power Amplifiers-uneven power drive and power matching1802
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 53, NO. 5, MAY 2005
Optimum Operation of Asymmetrical-Cells-Based Linear Doherty Power Ampliers―Uneven Power Drive and Power Matching
Jangheon Kim, Jeonghyeon Cha, Ildu Kim, and Bumman Kim, Senior Member, IEEE
Abstract―We developed a Doherty amplier with uneven input drive and optimized individual matching for the carrier and peaking cells. In the proposed amplier, higher input power is delivered to the peaking cell rather than the carrier cell for optimized linear power operation, especially for appropriate load modulation. Both cells are matched differently to further optimize the performance. We analyzed the efciency of the proposed amplier as a function of the input drive ratio for the two cells. To interpret the linear
IEEE TRANSACTIONS ON MICROWAVE THEORY AND TECHNIQUES, VOL. 53, NO. 5, MAY 2005
Optimum Operation of Asymmetrical-Cells-Based Linear Doherty Power Ampliers―Uneven Power Drive and Power Matching
Jangheon Kim, Jeonghyeon Cha, Ildu Kim, and Bumman Kim, Senior Member, IEEE
Abstract―We developed a Doherty amplier with uneven input drive and optimized individual matching for the carrier and peaking cells. In the proposed amplier, higher input power is delivered to the peaking cell rather than the carrier cell for optimized linear power operation, especially for appropriate load modulation. Both cells are matched differently to further optimize the performance. We analyzed the efciency of the proposed amplier as a function of the input drive ratio for the two cells. To interpret the linear
关键词： Optimum operation asymmetrical-cells-based linear Doherty power Amplifiers-uneven drive matching
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