Mixture of Experts Approach for Behavioral Modeling of RF Power Amplifiers

Tutkimustuotos: Conference contributionScientificvertaisarvioitu

Abstrakti

Piece-wise (PW) behavioral models are commonly adopted when modeling RF power amplifiers (PAs) that exhibit strong amplitude dependent nonlinear distortion characteristics. In this paper, we consider a new PW model for PAs based on the mixture of experts (ME) approach. We first introduce the ME framework theory while also extend it such that it can be applied to model complex baseband signals and nonlinearities. Then, we show how the ME model allows overcoming some of the intrinsic shortcomings that existing PW behavioral models commonly exhibit, which translates into improved modeling accuracy. The proposed solution is validated with extensive RF measurements on a load modulated balanced PA at 2.1 GHz, excited by a 320 MHz OFDM signal, and is benchmarked against several state-of-the art PW models.

AlkuperäiskieliEnglanti
Otsikko2021 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2021
KustantajaIEEE
Sivut31-33
Sivumäärä3
ISBN (elektroninen)9780738143675
DOI - pysyväislinkit
TilaJulkaistu - 2021
OKM-julkaisutyyppiA4 Artikkeli konferenssijulkaisussa
TapahtumaIEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications -
Kesto: 17 tammikuuta 202122 tammikuuta 2021

Julkaisusarja

Nimi2021 IEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications, PAWR 2021
ISSN (elektroninen)2473-4640

Conference

ConferenceIEEE Topical Conference on RF/Microwave Power Amplifiers for Radio and Wireless Applications
Ajanjakso17/01/2122/01/21

Julkaisufoorumi-taso

  • Jufo-taso 1

!!ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering
  • Instrumentation

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