Bandwidth Improvement for Compact Microstrip Patch Antenna Using Metamaterials
نویسندگان
چکیده
An improved ultra-wideband (UWB) and high gain rectangular microstrip antenna is specifically designed in this paper using planar metamaterial based on double-ring resonators (DRR). The antenna has three doublering resonators (DRRs) etched on the metal patch, and a partial ground plane so that the impedance matching characteristics of the antenna are much better. The −10 dB impedance bandwidth of the proposed antenna is 2.33–16.96 GHz. The antenna is promising for many applications such as WiMAX (2500–2690 MHz), Bluetooth (2400–2480 MHz) and UWB (3.1–10.7 GHz) applications. In addition, the proposed antenna has an average gain of 4.24 dB and a peak gain of 6.87 dB at 12.2 GHz.
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