资料介绍
Dual-Frequency Planar Inverted-F AntennaIEEE TRANSACTIONS ON ANTENNAS AND PROPAGATION, VOL. 45, NO. 10, OCTOBER 1997
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Dual-Frequency Planar Inverted-F Antenna
Zi Dong Liu, Peter S. Hall, Senior Member, IEEE, and David Wake
Abstract―Cellular telephone handsets are now being designed to have dual-mode capabilities. In particular, there is a requirement for internal antennas for GSM and DCS1800 systems. This paper describes a novel planar dual-band inverted-F antenna for cellular handsets, which operates at the 0.9-GHz and 1.8-GHz bands. The dual-band antenna has almost the same size as a conventional inverted-F antenna operating at 0.9 GHz and has an isolation between bands of better than 17 dB. The bandwidths of the antenna are close to those required for the above systems. Good dual-band action is also obtained for other f
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