IEEE APS 2006 - Switching a Dual Band PIFA To Operate At Four Bands.pdf (364.33 kB)
Switching a dual band PIFA to operate in four bands
online resource
posted on 2007-07-04, 15:53 authored by J. Wu, Chinthana PanagamuwaChinthana Panagamuwa, Patrick McEvoy, J. C. Vardaxoglou, Omar A. SaraerehCompetitive global marketing in the mobile phone sector has driven demand for small
phone terminals capable of multi-band operation across standard mobile communication
bands. There is restriction on the antenna size due to the presence of various integrated
components for different applications in contemporary handsets. The antenna should also
be reasonably efficient and free of excessive radiation illuminating the user’s head (low
SAR value). PIFAs are widely used as an internal antenna solution. They have desirable
features such as high efficiency multi-frequency behavior, moderate bandwidth, low
profile, low cost, less prone to breakage and reduced user power absorption compared
with equivalent external antennas. For US or European GSM systems, the antenna should
be matched to either the GSM850 / GSM1900 bands or the GSM900 / GSM1800 bands.
The antenna presented here is based on a small [1] dual band PIFA with maximum
dimensions 36 mm x 12 mm x 6 mm. This size is typical of a PIFA designed for a
contemporary mobile phone. While versitile, at lower frequencies it is often difficult to
completely cover the GSM850 and EGSM 900 bands simultanously using a small
antenna. In this paper, a PIFA is reported with switches to select between two sets of low
and high resonance pairs. The antenna has been designed with the intention to operate in
either of the GSM850/GSM1900 and GSM900/GSM1800 band pairs, while being
manufactured with standard planar phototihography processes.
History
School
- Mechanical, Electrical and Manufacturing Engineering
Citation
WU, J. ... et al (2006). Switching a dual band PIFA to operate in four bands. IN: IEEE AP-S International Symposium Digest. New Mexico, USA, July 2006, pp. 2675-2678Publisher
© Institute of Electrical and Electronics Engineers (IEEE)Publication date
2006Notes
This is a conference paper. [©2006 IEEE] Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.Language
- en