LCD baseband noise modulation estimation for radio frequency interference in mobile phones

Chulsoon Hwang, Sunkyu Kong, Takashi Enomoto, Junji Maeshima, Kenji Araki, David Pommerenke, Jun Fan

Publikation: Beitrag in Buch/Bericht/KonferenzbandBeitrag in einem Konferenzband

Abstract

A method to predict the modulated noise coupling to an antenna is proposed and experimentally validated using a practical mobile phone. The baseband noise of a liquid crystal display (LCD) is modulated with the Tx carrier signal of cellular communication, resulting in a radio frequency desensitization problem. The modulation mechanism is understood and its circuit representation is proposed to estimate the modulated noise coupling to an antenna. The modulation coefficient, which represents a relationship between the coupled voltage and modulated current, is experimentally extracted from a stand-alone LCD panel. The proposed modulation model is successfully validated through comparison with measurements using a practical mobile phone.

Originalspracheenglisch
Titel2017 Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2017
Herausgeber (Verlag)Institute of Electrical and Electronics Engineers
Seiten226-228
Seitenumfang3
ISBN (elektronisch)9781538639122
DOIs
PublikationsstatusVeröffentlicht - 11 Jul 2017
Extern publiziertJa
Veranstaltung2017 Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2017 - Seoul, Südkorea
Dauer: 20 Jun 201723 Jun 2017

Publikationsreihe

Name2017 Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2017

Konferenz

Konferenz2017 Asia-Pacific International Symposium on Electromagnetic Compatibility, APEMC 2017
LandSüdkorea
OrtSeoul
Zeitraum20/06/1723/06/17

ASJC Scopus subject areas

  • !!Instrumentation
  • !!Radiation

Fingerprint Untersuchen Sie die Forschungsthemen von „LCD baseband noise modulation estimation for radio frequency interference in mobile phones“. Zusammen bilden sie einen einzigartigen Fingerprint.

Dieses zitieren