A RF predistorter using a delay mismatch for an additional im3 path

Gun Hyun Ahn; Sung Chan Jung; Sung Wook Kwon; Kyung Hoon Lim; Jong Hyuk Jeong; Juho Van; Min Su Kim; Hyun Chul Park; Cheon Seok Park; Sung Kil Park; Jung Hye Kim; Youngoo Yang

doi:10.1109/EUMC.2007.4405123

A RF predistorter using a delay mismatch for an additional im₃ path

Gun Hyun Ahn
, Sung Chan Jung
, Sung Wook Kwon
, Kyung Hoon Lim
, Jong Hyuk Jeong
, Juho Van
, Min Su Kim
, Hyun Chul Park
, Cheon Seok Park
, Sung Kil Park
, Jung Hye Kim
, Youngoo Yang

Department of Electronic and Electrical Engineering

Sungkyunkwan University
Wave Electronics Co. Ltd.

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

Abstract

We describe a RF predistorter (RFPD) which has multiple intermodulation (IM) paths for individual cancellation of IM3 and IM5 components. To compensate for the memory effect of the power amplifier and improve the linearization ability of the predistorter, we attached an additional IM3 path to the predistorter which had a delay mismatch against the original IM3 path. The optimized delay mismatch, phase, and magnitude of the additional 1M3 components enabled the RFPD to moderately compensate for the memory effect of the IM3 components which were generated by the main amplifier. The proposed RFPD was experimentally verified at the 2.14GHz band. Using a two-tone signal with a tone spacing of 20MHz, the lower and upper IM3 components were cancelled by 26.21 and 22.84dB, respectively. Without an additional IM3 path, the lower and upper IM3 components were only cancelled by 17.11 and 12.68dB, respectively.

Original language	English
Title of host publication	Proceedings of the 37th European Microwave Conference, EUMC
Pages	52-55
Number of pages	4
DOIs	https://doi.org/10.1109/EUMC.2007.4405123
State	Published - 2007
Event	37th European Microwave Conference, EUMC - Munich, Germany Duration: 9 Oct 2007 → 12 Oct 2007

Publication series

Name	Proceedings of the 37th European Microwave Conference, EUMC

Conference

Conference	37th European Microwave Conference, EUMC
Country/Territory	Germany
City	Munich
Period	9/10/07 → 12/10/07

Access to Document

10.1109/EUMC.2007.4405123

Cite this

Ahn, G. H., Jung, S. C., Kwon, S. W., Lim, K. H., Jeong, J. H., Van, J., Kim, M. S., Park, H. C., Park, C. S., Park, S. K., Kim, J. H., & Yang, Y. (2007). A RF predistorter using a delay mismatch for an additional im₃ path. In Proceedings of the 37th European Microwave Conference, EUMC (pp. 52-55). Article 4405123 (Proceedings of the 37th European Microwave Conference, EUMC). https://doi.org/10.1109/EUMC.2007.4405123

@inproceedings{efdc18fcda5746abb2479970d867e289,

title = "A RF predistorter using a delay mismatch for an additional im3 path",

abstract = "We describe a RF predistorter (RFPD) which has multiple intermodulation (IM) paths for individual cancellation of IM3 and IM5 components. To compensate for the memory effect of the power amplifier and improve the linearization ability of the predistorter, we attached an additional IM3 path to the predistorter which had a delay mismatch against the original IM3 path. The optimized delay mismatch, phase, and magnitude of the additional 1M3 components enabled the RFPD to moderately compensate for the memory effect of the IM3 components which were generated by the main amplifier. The proposed RFPD was experimentally verified at the 2.14GHz band. Using a two-tone signal with a tone spacing of 20MHz, the lower and upper IM3 components were cancelled by 26.21 and 22.84dB, respectively. Without an additional IM3 path, the lower and upper IM3 components were only cancelled by 17.11 and 12.68dB, respectively.",

author = "Ahn, \{Gun Hyun\} and Jung, \{Sung Chan\} and Kwon, \{Sung Wook\} and Lim, \{Kyung Hoon\} and Jeong, \{Jong Hyuk\} and Juho Van and Kim, \{Min Su\} and Park, \{Hyun Chul\} and Park, \{Cheon Seok\} and Park, \{Sung Kil\} and Kim, \{Jung Hye\} and Youngoo Yang",

year = "2007",

doi = "10.1109/EUMC.2007.4405123",

language = "English",

isbn = "9782874870033",

series = "Proceedings of the 37th European Microwave Conference, EUMC",

pages = "52--55",

booktitle = "Proceedings of the 37th European Microwave Conference, EUMC",

note = "37th European Microwave Conference, EUMC ; Conference date: 09-10-2007 Through 12-10-2007",

}

Ahn, GH, Jung, SC, Kwon, SW, Lim, KH, Jeong, JH, Van, J, Kim, MS, Park, HC, Park, CS, Park, SK, Kim, JH & Yang, Y 2007, A RF predistorter using a delay mismatch for an additional im₃ path. in Proceedings of the 37th European Microwave Conference, EUMC., 4405123, Proceedings of the 37th European Microwave Conference, EUMC, pp. 52-55, 37th European Microwave Conference, EUMC, Munich, Germany, 9/10/07. https://doi.org/10.1109/EUMC.2007.4405123

A RF predistorter using a delay mismatch for an additional im₃ path. / Ahn, Gun Hyun; Jung, Sung Chan; Kwon, Sung Wook et al.
Proceedings of the 37th European Microwave Conference, EUMC. 2007. p. 52-55 4405123 (Proceedings of the 37th European Microwave Conference, EUMC).

Research output: Chapter in Book/Report/Conference proceeding › Conference contribution › peer-review

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AU - Lim, Kyung Hoon

AU - Jeong, Jong Hyuk

AU - Van, Juho

AU - Kim, Min Su

AU - Park, Hyun Chul

AU - Park, Cheon Seok

AU - Park, Sung Kil

AU - Kim, Jung Hye

AU - Yang, Youngoo

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N2 - We describe a RF predistorter (RFPD) which has multiple intermodulation (IM) paths for individual cancellation of IM3 and IM5 components. To compensate for the memory effect of the power amplifier and improve the linearization ability of the predistorter, we attached an additional IM3 path to the predistorter which had a delay mismatch against the original IM3 path. The optimized delay mismatch, phase, and magnitude of the additional 1M3 components enabled the RFPD to moderately compensate for the memory effect of the IM3 components which were generated by the main amplifier. The proposed RFPD was experimentally verified at the 2.14GHz band. Using a two-tone signal with a tone spacing of 20MHz, the lower and upper IM3 components were cancelled by 26.21 and 22.84dB, respectively. Without an additional IM3 path, the lower and upper IM3 components were only cancelled by 17.11 and 12.68dB, respectively.

AB - We describe a RF predistorter (RFPD) which has multiple intermodulation (IM) paths for individual cancellation of IM3 and IM5 components. To compensate for the memory effect of the power amplifier and improve the linearization ability of the predistorter, we attached an additional IM3 path to the predistorter which had a delay mismatch against the original IM3 path. The optimized delay mismatch, phase, and magnitude of the additional 1M3 components enabled the RFPD to moderately compensate for the memory effect of the IM3 components which were generated by the main amplifier. The proposed RFPD was experimentally verified at the 2.14GHz band. Using a two-tone signal with a tone spacing of 20MHz, the lower and upper IM3 components were cancelled by 26.21 and 22.84dB, respectively. Without an additional IM3 path, the lower and upper IM3 components were only cancelled by 17.11 and 12.68dB, respectively.

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