Coupled-fed small-size PIFA for penta-band folder-type mobile phone application

Chih Hua Chang, Kin Lu Wong, Jeen-Sheen Row

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

A small-size planar inverted-F antennas (PIFA) for penta-band operation in the folder-type mobile phone is presented. The PIFA occupies a small volume of 2.1 cm3 only. Instead of using the conventional direct contact feed, the proposed PIFA uses a coupling feed, which allows the antenna in its open state or talk condition to generate a dual-resonance lower band of bandwidth 300 MHz (780-1080 MHz, 3:1 VSWR or 6-dB return loss) to cover GSM850/900 operation. In addition, the PIFA can also generate a very wide upper band of band-width 925 MHz (1368-2293 MHz) to cover GSM1800/1900/UMTS operation. When the mobile phone is in its close state or standby condition, the obtained lower and upper bands can still cover GSM850/900/1800/ 1900/UMTS penta-band operation with impedance matching better than 6:1 VSWR or 3-dB return loss, which is acceptable for the mobile phone in standby condition for practical applications. Details of the proposed PIFA and the obtained results are presented.

Original languageEnglish
Pages (from-to)18-23
Number of pages6
JournalMicrowave and Optical Technology Letters
Volume51
Issue number1
DOIs
Publication statusPublished - 2009 Jan 1

Fingerprint

Antenna feeders
Mobile phones
antennas
Antennas
3G mobile communication systems
bandwidth
Bandwidth
impedance matching

All Science Journal Classification (ASJC) codes

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

Cite this

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abstract = "A small-size planar inverted-F antennas (PIFA) for penta-band operation in the folder-type mobile phone is presented. The PIFA occupies a small volume of 2.1 cm3 only. Instead of using the conventional direct contact feed, the proposed PIFA uses a coupling feed, which allows the antenna in its open state or talk condition to generate a dual-resonance lower band of bandwidth 300 MHz (780-1080 MHz, 3:1 VSWR or 6-dB return loss) to cover GSM850/900 operation. In addition, the PIFA can also generate a very wide upper band of band-width 925 MHz (1368-2293 MHz) to cover GSM1800/1900/UMTS operation. When the mobile phone is in its close state or standby condition, the obtained lower and upper bands can still cover GSM850/900/1800/ 1900/UMTS penta-band operation with impedance matching better than 6:1 VSWR or 3-dB return loss, which is acceptable for the mobile phone in standby condition for practical applications. Details of the proposed PIFA and the obtained results are presented.",
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Coupled-fed small-size PIFA for penta-band folder-type mobile phone application. / Chang, Chih Hua; Wong, Kin Lu; Row, Jeen-Sheen.

In: Microwave and Optical Technology Letters, Vol. 51, No. 1, 01.01.2009, p. 18-23.

Research output: Contribution to journalArticle

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