Analysis of coupling between digital signal on FPCB and mobile handset antenna

Joonchul Kim, Hyeongdong Kim

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

Digital harmonics, which may reduce the radio frequency (RF) sensitivity of a system, can be coupled with an antenna in a mobile handset. Especially, the digital signals which flows a flexible printed circuit board (FPCB) can be coupled with an antenna and which seriously degrade the system sensitivity. This article explores the coupling mechanisms of digital harmonics on an FPCB with an antenna in terms of the characteristic mode current and the concept of reaction. The signal and ground lines in an FPCB are modeled as a loop path exciting a characteristic mode current, and the mechanisms of the coupling between the digital signal and the antenna port are analyzed.

Original languageEnglish
Pages (from-to)2318-2321
Number of pages4
JournalMicrowave and Optical Technology Letters
Volume53
Issue number10
DOIs
StatePublished - 2011 Oct 1

Fingerprint

printed circuits
circuit boards
Printed circuit boards
antennas
Antennas
harmonics
sensitivity
radio frequencies

Keywords

  • characteristic mode
  • digital harmonic
  • flexible printed circuit board
  • FPCB
  • reaction

Cite this

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Analysis of coupling between digital signal on FPCB and mobile handset antenna. / Kim, Joonchul; Kim, Hyeongdong.

In: Microwave and Optical Technology Letters, Vol. 53, No. 10, 01.10.2011, p. 2318-2321.

Research output: Contribution to journalArticle

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