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A novel envelope-domain approach for in-band intermodulation distortions characterization

  • School of Electronics and Information Engineering, Harbin Institute of Technology

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

To characterize the in-band intermodulation (IM) distortions of the microwave amplifiers, a novel prediction method based on the dynamic X-parameters theory is proposed in this paper. The proposed method describes the relationships between the input two-tone signal and the IMs products. Compared to the traditional approaches, it can accurately predict both the amplitudes and the consistent phase information of the output signals at all desired frequencies, which is an important supplement and extension to the theory of behavioral modeling. Benefit from the wideband detection of the pulse profile measurement, the in-band IMs products are sampled and down converted with the RF signal simultaneously in the NVNA. Therefore, it provides a possibility to distinguish each of the frequency spectrum products. Finally, the output spectrums of the RF pre-amplifier ZFL-11AD have been analyzed and verified based on the theoretical and practical measurements.

Original languageEnglish
Title of host publication2015 IEEE 12th International Conference on Electronic Measurement and Instruments, ICEMI 2015
EditorsCui Jianping, Wu Juan
PublisherInstitute of Electrical and Electronics Engineers Inc.
Pages573-578
Number of pages6
ISBN (Electronic)9781479976195
DOIs
StatePublished - 16 Jun 2016
Externally publishedYes
Event12th IEEE International Conference on Electronic Measurement and Instruments, ICEMI 2015 - Qingdao, China
Duration: 16 Jul 201518 Jul 2015

Publication series

Name2015 IEEE 12th International Conference on Electronic Measurement and Instruments, ICEMI 2015
Volume2

Conference

Conference12th IEEE International Conference on Electronic Measurement and Instruments, ICEMI 2015
Country/TerritoryChina
CityQingdao
Period16/07/1518/07/15

Keywords

  • dynamic X-parameters model
  • envelope domain
  • in-band
  • intermodulation distortions
  • two-tone signal

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