PM-AM/PM-PM distortions in wireless transmitter behavioral modeling

Author

Lima, Eduardo G. ; Cunha, Telmo R. ; Pedro, José C.

Author_Institution

Dept. de Eng. Eletr., Univ. Fed. do Parana, Curitiba, Brazil

fYear

2011

fDate

5-10 June 2011

Firstpage

1

Lastpage

4

Abstract

This paper addresses the impact of PM-AM and PM-PM distortions observed in wireless transmitters excited by wideband signals on the performance of their behavioral models. The origins of PM-AM and PM-PM distortions in these are first identified and then the necessary conditions for their accurate representation are theoretically discussed and experimentally assessed based on experimental data measured on a complete transmitter chain. Improvements of almost 10dB in NMSE and ACEPR results are achieved when a general behavioral model that takes into account the PM-AM and PM-PM distortions is used, instead of common behavioral models that neglect such distortions.

Keywords

distortion; filtering theory; phase modulation; power amplifiers; radio transmitters; ACEPR; NMSE; PM-AM/PM-PM distortion; wideband signals; wireless transmitter behavioral modeling; Band pass filters; Finite impulse response filter; Maximum likelihood detection; Nonlinear filters; Polynomials; Power harmonic filters; Transmitters; Filtering; Volterra series; modeling; nonlinear systems; power amplifiers;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest (MTT), 2011 IEEE MTT-S International

Conference_Location

Baltimore, MD

ISSN

0149-645X

Print_ISBN

978-1-61284-754-2

Electronic_ISBN

0149-645X

Type

conf

DOI

10.1109/MWSYM.2011.5972608

Filename

5972608