This paper proposes a novel multi-band monopole antenna for PDA phone. A simple inverted-U-shaped driven element operates frequency bands centered at 1710 and 2350MHz, which achieve a bandwidth based on 6-dB return loss from 1550 to 2490MHz su-cient for DCS, PCS, UMTS, and WLAN applications. A low frequency meander path and an impedance matching stub with a truncated slit located at ground plane operates frequency band centered at 910MHz. The bandwidth from 868 to 995MHz covers the GSM 900 application band. The design procedures and both simulated and measured results are presented and discussed in this paper.
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Chen et al. (2010) studied this question.
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