Abstract
A compact wideband antenna consisting of a L-shaped radiating element which has a modified inverted-F structure and a C-shaped parasitic radiating element on the ground is proposed. Three resonant frequencies and a very wide operating band are obtained. A prototype of the proposed antenna has been constructed and experimentally studied. The measured results show that the operating bandwidth with 10 dB return loss is about 2.9GHz (2.11–5.01GHz), 81.46%, respectively, covering LTE2500 (2.5–2.69GHz), 2.4GHz WLAN and 2.5/3.5GHz WiMAX bands. Furthermore, the antenna has a simple planar structure and small volume of only 30×30×1.6mm3. Good radiation characteristics and acceptable peak gains are obtained over the operating bands.
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