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Please use this identifier to cite or link to this item: http://repository.iitr.ac.in/handle/123456789/8411
Title: Linearization of traveling-wave tube amplifiers using digitally supported signal injection technique
Authors: Tripathi G.C.
Rawat, Meenakshi
Kamath S.
Kartikeyan, Machavaram Venkata
Published in: Journal of Electromagnetic Waves and Applications
Abstract: This paper presents a digitally supported signal injection technique for the intermodulation distortion terms (IMDs) resulting from the non-linearity of Traveling-wave tube amplifiers. It is shown that the state-of-the art analog techniques have inherent limitation due to the inaccuracy of analog components. The proposed technique provides more accurate cancellation of third-order IMD as compared to its analog counterpart. Moreover, it is shown that the presented technique can be easily extended to compensate for higher order IMDs simultaneously. © 2017 Informa UK Limited, trading as Taylor & Francis Group.
Citation: Journal of Electromagnetic Waves and Applications (2017), 31(17): 1802-1815
URI: https://doi.org/10.1080/09205071.2017.1374884
http://repository.iitr.ac.in/handle/123456789/8411
Issue Date: 2017
Publisher: Taylor and Francis Ltd.
Keywords: Gain and phase expansion
non-linear distortion
predistortion linearizer
signal injection
traveling-wave tube amplifier (TWTA)
ISSN: 9205071
Author Scopus IDs: 57189044375
35339866500
7102821813
6603631347
Author Affiliations: Tripathi, G.C., Department of Electronics & Communication Engineering, Indian Institute of Technology, Roorkee, India
Rawat, M., Department of Electronics & Communication Engineering, Indian Institute of Technology, Roorkee, India
Kamath, S., Microwave Tubes Research and Development Center, DRDO, Bangalore, India
Kartikeyan, M.V., Department of Electronics & Communication Engineering, Indian Institute of Technology, Roorkee, India
Funding Details: This work was supported by Defence Research and Development Organization (DRDO), India [grant number ERIP/ER/1400477/M/01]. The authors are thankful to Dr. Karun Rawat, Department of Electronics and Communication Engineering for his valuable suggestions.
Corresponding Author: Tripathi, G.C.; Department of Electronics & Communication Engineering, Indian Institute of TechnologyIndia; email: girish5111@gmail.com
Appears in Collections:Journal Publications [ECE]

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