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Abstract
A compact tri-band patch antenna resonant at 2.45, 3.5, and 5.5 GHz is proposed for wireless local area network (WLAN)/worldwide interoperability for microwave access (WiMax) applications in this paper. The antenna has an asymmetric structure with total dimension of 25 × 18 × 1.5 mm3, where a C-shaped metal strip and an inverted L-shaped strip are designed as radiation elements. The measured −10 dB return-loss bandwidths cover 2.35–2.5, 3.07–3.85, and 4.6–7 GHz, which meets the IEEE 802.11b/g/a standard for WLAN and IEEE 802.16e standard for WiMax applications. Measured radiation patterns at 2.45, 3.5, and 5.5 GHz also show good agreement with simulated results.
Acknowledgment
This work is supported by the National Natural Science Foundation of China (NSAF-11176017)