Study on linearization of Ka-band wideband traveling-wave tube amplifer

Fei Han; Lei Xia; Baojian Li

doi:10.11884/HPLPB202133.200353

Journals >High Power Laser and Particle Beams >Volume 33 >Issue 4 >Page 043003 > Article

High Power Laser and Particle Beams
Vol. 33, Issue 4, 043003 (2021)

Study on linearization of Ka-band wideband traveling-wave tube amplifer

Fei Han¹, Lei Xia², and Baojian Li¹

Author Affiliations

¹The Twelfth Institute of China Electronics Technology Group Corporation, Beijing 100015, China

²School of Electronic Science and Engineering, University of Electronic Science and Technology of China, Chengdu 611731, China

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DOI: 10.11884/HPLPB202133.200353 Cite this Article

Fei Han, Lei Xia, Baojian Li. Study on linearization of Ka-band wideband traveling-wave tube amplifer[J]. High Power Laser and Particle Beams, 2021, 33(4): 043003 Copy Citation Text

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f/GHz	S（3，1）/dB			S（4，1）/dB			S（1，1）/dB			S（2，1）/dB			S（3，4）/dB
f/GHz	two-branch bridge	three-branch bridge	four-branch bridge	two-branch bridge	three-branch bridge	four-branch bridge	two-branch bridge	three-branch bridge	four-branch bridge	two-branch bridge	three-branch bridge	four-branch bridge	two-branch bridge	three-branch bridge	four-branch bridge
26	−2.97	−3.63	−3.31	−3.51	−2.68	−3.02	−19.32	−33.79	−24.42	−16.17	−21.46	−18.88	−18.46	−32.36	−19.59
28	−2.42	−3.23	−3.18	−3.85	−2.99	−3.15	−48.48	−33.38	−28.18	−27.92	−26.41	−17.81	−44.82	−31.55	−24.14
30	−2.32	−3.03	−3.31	−4.17	−3.26	−3.07	−20.20	−21.40	−21.27	−22.19	−26.73	−18.47	−19.25	−21.00	−26.81

Table 1. [in Chinese]

IPBO/dB	gain compression of TWTA/dB	gain compression of linearized TWTA/dB
0	−5.81	−3.12
3	−3.31	−1.06
6	−1.77	−0.36
9	−0.92	−0.18
13	−0.34	−0.10
15	−0.19	−0.07

Table 2. [in Chinese]

IPBO/dB	phase compression of TWTA/（°）	phase compression of linearized TWTA/（°）
0	−33.31	−0.81
3	−23.88	＋1.6
6	−14.77	＋2.31
9	−8.39	＋1.52
13	−3.5	＋0.79
15	−2.03	＋0.42

Table 3. [in Chinese]

IPBO/dB	IMD3 of TWTA/dB	IMD3 of linearized TWTA/dB
3	−10.75	−12.30
4	−11.74	−14.39
6	−13.94	−20.08
9	−17.97	−32.36
13	−24.11	−35.12

Table 4. [in Chinese]

Fei Han, Lei Xia, Baojian Li. Study on linearization of Ka-band wideband traveling-wave tube amplifer[J]. High Power Laser and Particle Beams, 2021, 33(4): 043003

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