Architecture comparison for concurrent multi-band linear power amplifiers

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2015-01-01
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Zhang, Zhen
Li, Yifei
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Neihart, Nathan
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Electrical and Computer Engineering

The Department of Electrical and Computer Engineering (ECpE) contains two focuses. The focus on Electrical Engineering teaches students in the fields of control systems, electromagnetics and non-destructive evaluation, microelectronics, electric power & energy systems, and the like. The Computer Engineering focus teaches in the fields of software systems, embedded systems, networking, information security, computer architecture, etc.

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The Department of Electrical Engineering was formed in 1909 from the division of the Department of Physics and Electrical Engineering. In 1985 its name changed to Department of Electrical Engineering and Computer Engineering. In 1995 it became the Department of Electrical and Computer Engineering.

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1909-present

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  • Department of Electrical Engineering (1909-1985)
  • Department of Electrical Engineering and Computer Engineering (1985-1995)

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Abstract

In this paper, a comparison between the concurrent multi-band and parallel single-band power amplifier architectures is analyzed. A generalized framework in which these two architectures can be compared in terms of cost, drain efficiency, output power, and linearity is developed. Results show that in general, a concurrent multi-band power amplifier will have worse performance than a parallel single-band amplifier for class-A operation, to the point that it is not a viable substitution. Class-B and class-C operation, however, remain viable alternatives for area savings without a large drop in efficiency and output power.

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This is a manuscript of a proceeding published as Zhang, Zhen, Yifei Li, and Nathan M. Neihart. "Architecture comparison for concurrent multi-band linear power amplifiers." In 2015 IEEE 58th International Midwest Symposium on Circuits and Systems (MWSCAS) (2015): 1-4. DOI: 10.1109/MWSCAS.2015.7282166. Posted with permission.

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Thu Jan 01 00:00:00 UTC 2015