How to increase amplifier efficiency?
Answers from top 19 papers
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| Papers (19) | Insight |
|---|---|
316 Citations | With proper output filtering, the amplifier can be operated over nearly an octave bandwidth with less than a 5 percent reduction in efficiency. |
20 Citations | The proposed technique allows the power amplifier (PA) to maintain maximum efficiency until the output power of the amplifier is backed off by 6 dB. |
17 Jun 2012 | This technique simultaneously provides improvement to power amplifier efficiency, saturation power, and linearity. |
01 Sep 2006 | The fabricated amplifier achieves state-of-the-art efficiency. |
27 Citations | Among power amplifier linearization techniques, feedforward delivers the best performance, but at the cost of significant degradation in the amplifier's power efficiency. |
01 Aug 2001 20 Citations | The ability of the class-D amplifier to recycle quadrature load current offers new ways to improve the efficiency. |
| The Doherty power amplifier has the most attractive architecture to improve the efficiency for amplifying a signal with a high peak-to-average power ratio. | |
| Measured data shows that the power-added efficiency of the amplifier is greater than 55%, indicating that this new approach works as expected. | |
| We also show that the amplifier performance with various Single-Carrier Frequency Division Multiple Access signals is very similar, and that the peak-to-average-power ratio can be used to predict the overall efficiency for the traditional amplifier drive method. | |
47 Citations | The experimental results show that this power amplifier achieve drain efficiency of 62.2%-74.7% in the whole interesting band. |
| In particular, we show that for high overall efficiency it is important to operate the amplifier close to the maximum output power level as often as possible, and we show that this has consequences for the resource allocation in especially packet based multicarrier systems. | |
36 Citations | This will be achieved with negligible degradation of the amplifier performance in terms of output power and drain efficiency |
| The efficiency of the amplifier can be enhanced without degradation of the linearity. | |
21 Citations | Moreover, the results show that the extracted efficiency of the amplifier will decrease dramatically with increasing HOM loss when the loss is low. |
| The approach can find application in the management of the efficiency/linearity/bandwidth tradeoff in amplifier design. | |
| The results predict a significant improvement on the overall power efficiency of the amplifier system for various modulations. | |
| We show that there are large differences on the overall amplifier efficiency as well as its maximum output power depending on the modulated signal and also on the operation mode. | |
03 Jun 2007 35 Citations | The impact of device scaling is also explained, showing the increased difficulty in realising high efficiency amplifier modes in large periphery devices. |
| The developed PA thus provides attractive features related to efficiency, linearity, and extended bandwidth, which make this amplifier appropriate for implementations in various wireless communications systems. |