CPW-Fed Multi-Band Omni-Directional Planar Microstrip Antenna Using Composite Metamaterial Resonators for Wireless Communications
A new compact and planar multiband antenna with composite microstrip metamaterial resonators has been presented. The antenna is suitable for multi-band mobile devices and offers advantages in small size, planar, inexpensive and ease to manufacture, omni-directional H-plane radiation patterns and good radiation performance. A sample antenna with frequency notched function is proposed for triband WLAN/WiMAX wireless communications applications. By using composite closed-ring resonator and SRR to produce three discontinue resonant frequency bands; the antenna is suitable for WLAN/WiMAX (2.4/3.5/5.2/5.5/5.8GHz) wireless communication.