Shorted monopole antenna for curved shape phone housing in clamshell phone

A novel internal shorted monopole antenna suitable for applications of GSM /DCS/PCS tri-band antenna in clamshell phone is presented. The proposed antenna can be embedded into curved shape phone housing as an internal antenna and it occupies a very small volume 4times11times38 mmJ. The antenna is located at the bottom of the edge of the ground plane in main-board and its curved shape radiator can be designed into some special phone housings for clamshell phone. The obtained impedance bandwidth also covers the required bandwidth of the GSM (880-960 MHz), DCS (1710-1880 MHz) and PCS (1850-1990 MHz) bands.

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