Radiation efficiency enhancement using lumped inductors for dual-mode mobile phone

Seung Jun Lee, Sung Won Park, Chul Woo Park, Young Sik Kim

Research output: Contribution to journalArticle

Abstract

This letter proposes a radiation efficiency enhancement technique using a lumped inductor for a dual-mode mobile phone.Two planar inverted-F antennas (PIFAs) with a collinear arrangement are used for dual-mode operation at the CDMA band of 824-894 MHz and GSM band of 880-960 MHz. Each antenna is separately connected to a lumped inductor of 4.7 nH. The electric field is more confined on each inverted-F section at its operating band in this configuration and the coupling between PIFAs is less than -10 dB. The simulated and measured results show that radiation efficiency of the proposed antenna is improved by up to 33%. The radiation patterns are similar to those of a dipole antenna with slightly tilted main beam directions due to the PIFA placement.

Original languageEnglish
Pages (from-to)1011-1013
Number of pages3
JournalMicrowave and Optical Technology Letters
Volume54
Issue number4
DOIs
Publication statusPublished - 2012 Apr 1

Fingerprint

inductors
Mobile phones
antennas
Antennas
Radiation
augmentation
radiation
dipole antennas
Dipole antennas
code division multiple access
Directional patterns (antenna)
Global system for mobile communications
Code division multiple access
Electric fields
electric fields
configurations

Keywords

  • coupling
  • dual-mode
  • mobile phone
  • PIFA
  • radiation efficiency

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Atomic and Molecular Physics, and Optics
  • Electronic, Optical and Magnetic Materials
  • Electrical and Electronic Engineering

Cite this

Radiation efficiency enhancement using lumped inductors for dual-mode mobile phone. / Lee, Seung Jun; Park, Sung Won; Park, Chul Woo; Kim, Young Sik.

In: Microwave and Optical Technology Letters, Vol. 54, No. 4, 01.04.2012, p. 1011-1013.

Research output: Contribution to journalArticle

Lee, Seung Jun ; Park, Sung Won ; Park, Chul Woo ; Kim, Young Sik. / Radiation efficiency enhancement using lumped inductors for dual-mode mobile phone. In: Microwave and Optical Technology Letters. 2012 ; Vol. 54, No. 4. pp. 1011-1013.
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