Enhanced Bandwidth Small Square Slot Antenna with Circular Polarization Characteristics for WLAN/WiMAX and C-Band Applications
Keywords:
Circular polarization performance, -shaped slit, printed square slot antennaAbstract
This article proposes a novel printed slot antenna with circular polarization characteristics using an L-shaped slot in the ground plane and an L-shaped radiating stub with a pair of ?-shaped slits for simultaneously satisfying wireless local area network (WLAN), worldwide interoperability for microwave access (WiMAX), and C-Band applications. The operating frequencies of the proposed antenna are 5.2/5.8 GHz, which covers WLAN system, 5.5 GHz for WiMAX system, and 4 GHz for C-Band system. The desired resonant frequencies are obtained by adjusting the length of ?-shaped slits in the both sides of tapered microstrip feed-line. The measured results show good agreement with the numerical prediction. The designed antenna has a small size of 20 × 20 mm2
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References
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