Name
Title | ||
|---|---|---|
Characterization of Concurrent Dual-Band Power Amplifiers Using a Dual Two-Tone Excitation Signal |
Abstract | ||
|---|---|---|
A method to characterize the memory effects in a nonlinear concurrent dual-band transmitter is presented. It is an extension of the conventional two-tone test for power amplifiers to concurrent dual-band transmitters. The output signal of a concurrent dual-band transmitter is affected not only by intermodulation (IM) products but also by cross-modulation (CM) products. In one frequency band, the transmitter is excited by a two-tone signal which frequency separation is swept. In the second band, the transmitter is concurrently excited by another two-tone signal with slightly wider frequency separation. The frequency difference of the two signals is fixed during the frequency sweep. The two-tone test is made at different power levels. The upper and lower third-order IM and CM products are measured. The asymmetry between the upper and lower third-order IM and CM products are measures of the transmitter's memory effects. The measurement results show that the memory effects are more dominant in the third-order IM products than in the CM products. An error analysis and system calibration was performed and measurement results for two different devices are presented. |
Year | DOI | Venue |
|---|---|---|
2015 | 10.1109/TIM.2015.2427731 | Instrumentation and Measurement, IEEE Transactions |
Keywords | Field | DocType |
amplifier distortion,concurrent dual band,cross modulation (cm),digital predistortion (dpd),intermodulation (im),multiple input multiple output (mimo),power amplifier (pa).,dual band,frequency domain analysis,kernel,radio frequency,electrical engineering,transmitters,mimo,signal processing | Frequency domain,Transmitter,Frequency separation,Transmitter power output,Frequency band,Electronic engineering,Intermodulation,Sweep frequency response analysis,Mathematics,Amplifier | Journal |
Volume | Issue | ISSN |
PP | 99 | 0018-9456 |
Citations | PageRank | References |
0 | 0.34 | 0 |
Authors | ||
5 | ||
Name | Order | Citations | PageRank |
|---|---|---|---|
| Shoaib Amin | 1 | 0 | 1.01 |
| Van Moer, W. | 2 | 57 | 24.84 |
| Peter Handel | 3 | 0 | 0.34 |
| D. Rönnow | 4 | 19 | 7.30 |
| Wendy Van Moer | 5 | 99 | 29.63 |