Yongfei Wang, Peisheng Han, Qing Hu, Xinpeng Chen, Dongfang Zhou. Wideband matching technology used for predistortion linearization[J]. High Power Laser and Particle Beams, 2019, 31(12): 123003
- High Power Laser and Particle Beams
- Vol. 31, Issue 12, 123003 (2019)
Fig. 1. Theoretical model of predistortion linearizer
Fig. 2. Relationship between third-order intermodulation degradation and gain error
Fig. 3. Curves of AM/AM characteristic of TWTA
Fig. 4. Curves of AM/AM characteristic of LTWTA when PD and TWTA is not well matched
Fig. 5. Amplitude-frequency characteristic of TWTA
Fig. 6. The amplitude-frequency and phase-frequency characteristics of PD
Fig. 7. Gain and phase characteristics of TWTA and LTWTA at there frequencies
Fig. 8. C/IM3 improvement of TWTA with predistortion linearization
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