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Patent Searching and Data


Title:
電力増幅器の調整方法および調整システム
Document Type and Number:
Japanese Patent JP6577615
Kind Code:
B2
Abstract:
An object is to provide a method and a system of adjusting a power amplifier which makes it possible to adjust a linearizer using signals of two carriers by the same power, to reduce the influence of the non-linearity on a multicarrier signal compared with the conventional. A method of adjusting a power amplifier, the power amplifier including a linearizer to reduce an intermodulation caused by non-linearity of the power amplifier, includes: inputting two signals generated by a signal generator into the power amplifier; measuring power of each order of first intermodulations of the two signals output from the power amplifier; calculating a power sum of second intermodulations by the plurality of signals using the measured power of each order of the first intermodulations; and adjusting the linearizer so that the power sum of the second intermodulations by the plurality of signals takes a minimum value or at most a predetermined value.

Inventors:
Yoshinori Suzuki
Kohei Susaki
Fumihiro Yamashita
Application Number:
JP2018037425A
Publication Date:
September 18, 2019
Filing Date:
March 02, 2018
Export Citation:
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Assignee:
Nippon Telegraph and Telephone Corporation
International Classes:
H03F1/32
Domestic Patent References:
JP2011176751A
JP2000049745A
JP2003229727A
JP2015154364A
JP2007189535A
Foreign References:
US20090023403
US20140347126
US20020027961
Attorney, Agent or Firm:
Furuya Fumio
Takeshi Ohashi
Yoshio Kawada