Simple calculation method of the intermodulation distortion of multiple‐carrier amplifiers operating in weakly nonlinear region

Noriharu Suematsu; Akio Iida; Tadashi Takagi; Shuji Urasaki

doi:10.1002/ecjb.4420781006

Simple calculation method of the intermodulation distortion of multiple‐carrier amplifiers operating in weakly nonlinear region

Noriharu Suematsu, Akio Iida, Tadashi Takagi, Shuji Urasaki

Research output: Contribution to journal › Article › peer-review

Abstract

Simple calculation method of the intermodulation distortion of multiple‐carrier amplifiers operating in weakly nonlinear region is presented. This method is based on the approximation that is effective when (1) the transfer characteristics of carriers are regarded as linear, and (2) the third‐order intermodulation distortion ratio versus the output power has 2 dB/dB slope. As the number of the carriers n→∞, the intermodulation distortion ratio approaches the value of 10 log₁₀(3/2) + 6 = 7.76 dB higher than the third‐order intermodulation distortion ratio in the case of two‐carrier amplification at the same output power.

Original language	English
Pages (from-to)	44-51
Number of pages	8
Journal	Electronics and Communications in Japan (Part II: Electronics)
Volume	78
Issue number	10
DOIs	https://doi.org/10.1002/ecjb.4420781006
Publication status	Published - 1995 Oct
Externally published	Yes

Keywords

Nonlinear amplifier
intermodulation distortion
microwave
mobile communication
multiple‐carrier amplifiers

ASJC Scopus subject areas

Physics and Astronomy(all)
Computer Networks and Communications
Electrical and Electronic Engineering

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10.1002/ecjb.4420781006

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title = "Simple calculation method of the intermodulation distortion of multiple‐carrier amplifiers operating in weakly nonlinear region",

abstract = "Simple calculation method of the intermodulation distortion of multiple‐carrier amplifiers operating in weakly nonlinear region is presented. This method is based on the approximation that is effective when (1) the transfer characteristics of carriers are regarded as linear, and (2) the third‐order intermodulation distortion ratio versus the output power has 2 dB/dB slope. As the number of the carriers n→∞, the intermodulation distortion ratio approaches the value of 10 log10(3/2) + 6 = 7.76 dB higher than the third‐order intermodulation distortion ratio in the case of two‐carrier amplification at the same output power.",

keywords = "Nonlinear amplifier, intermodulation distortion, microwave, mobile communication, multiple‐carrier amplifiers",

author = "Noriharu Suematsu and Akio Iida and Tadashi Takagi and Shuji Urasaki",

year = "1995",

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doi = "10.1002/ecjb.4420781006",

language = "English",

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T1 - Simple calculation method of the intermodulation distortion of multiple‐carrier amplifiers operating in weakly nonlinear region

AU - Suematsu, Noriharu

AU - Iida, Akio

AU - Takagi, Tadashi

AU - Urasaki, Shuji

PY - 1995/10

Y1 - 1995/10

N2 - Simple calculation method of the intermodulation distortion of multiple‐carrier amplifiers operating in weakly nonlinear region is presented. This method is based on the approximation that is effective when (1) the transfer characteristics of carriers are regarded as linear, and (2) the third‐order intermodulation distortion ratio versus the output power has 2 dB/dB slope. As the number of the carriers n→∞, the intermodulation distortion ratio approaches the value of 10 log10(3/2) + 6 = 7.76 dB higher than the third‐order intermodulation distortion ratio in the case of two‐carrier amplification at the same output power.

AB - Simple calculation method of the intermodulation distortion of multiple‐carrier amplifiers operating in weakly nonlinear region is presented. This method is based on the approximation that is effective when (1) the transfer characteristics of carriers are regarded as linear, and (2) the third‐order intermodulation distortion ratio versus the output power has 2 dB/dB slope. As the number of the carriers n→∞, the intermodulation distortion ratio approaches the value of 10 log10(3/2) + 6 = 7.76 dB higher than the third‐order intermodulation distortion ratio in the case of two‐carrier amplification at the same output power.

KW - Nonlinear amplifier

KW - intermodulation distortion

KW - microwave

KW - mobile communication

KW - multiple‐carrier amplifiers

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Simple calculation method of the intermodulation distortion of multiple‐carrier amplifiers operating in weakly nonlinear region

Abstract

Keywords

ASJC Scopus subject areas

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