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A microstrip-fed printed monopole antenna having a parasitic plane is proposed for multi-band applications. By inserting an inverted U-shaped parasitic plane on the bottom of the dielectric substrate, the proposed antenna can easily cover DCS/UMTS/WiBro/2.4 GHz WLAN and 5.2/5.8 GHz WLAN bands at the same time. In addition, a Γ-shaped slit is inserted on the main patch to cover the GSM frequency band. Experimental and numerical results of the designed monopole antenna are presented and analysed.
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Seol et al. (2006) studied this question.
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