2017
DOI: 10.1109/tmtt.2017.2769089
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Highly Efficient 1.8-GHz Amplifier With 120-MHz Class-G Supply Modulation

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Cited by 39 publications
(5 citation statements)
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“…Interconnect Board requiring minimal inductance and capacitance in order to behave as a low-pass filter with a cutoff frequency beyond the modulation bandwidth [2], [10]. Fig.…”
Section: Pa Outputmentioning
confidence: 99%
See 1 more Smart Citation
“…Interconnect Board requiring minimal inductance and capacitance in order to behave as a low-pass filter with a cutoff frequency beyond the modulation bandwidth [2], [10]. Fig.…”
Section: Pa Outputmentioning
confidence: 99%
“…To the best of the authors' knowledge, this is the first demonstration of dynamic supply modulation for broadband array efficiency and linearity enhancement. High efficiencies have been obtained for single PA element high-power GaN transmitters using dynamic supplies for a range of carrier frequencies, for example in L-band (1.8 GHz) for communications [2], and in X-band (9.57 GHz) for radar applications [3]. However, applying a dynamic supply to multiple PA elements (e.g.…”
Section: Introductionmentioning
confidence: 99%
“…This method requires fewer supplies than other DSM topologies [26, 27]. The number of supply voltages needed to produce the required drain voltage levels scales linearly, while the number of discrete drain voltage levels scales exponentially.…”
Section: Amplifier and Dsmmentioning
confidence: 99%
“…For GaN implementations of both PA and dynamic supply, modulation bandwidths of up to 80 MHz with continuous SM were demonstrated for a sub-6 GHz PA [17]. Discrete SM has exceeded this with an eight-level tracker showing 100 MHz modulation bandwidth [18] and a three-level tracker showing a 120 MHz modulation bandwidth [19], both for sub-6 GHz carrier frequencies. X-band implementations of SM have also been demonstrated; however, the modulation bandwidths have not exceeded 20 MHz [20,21].…”
Section: Introductionmentioning
confidence: 99%