International Symposium on Antennas and Propagation
Metamaterial Enhanced Patch Antenna for WiMAX applications
Chun-Yih Wu, Hung-Hsuan Lin,
PDF download (282.7KB)
In the past decade, methods to improve antenna performance by using metamaterial superstrate can be approximately differentiated into three categories according to the height. The first is half-wavelength height that can raise the single patch antenna directivity significantly by the research of -. The second is quarter-wavelength height with an artificial ground plane which can provide 90 degree phase reflection and bring almost the same performance as the first one by using the research of -. The last one is the lowest height profile (below 0.1 wavelength) which can also provides approximate 90% aperture efficiency according to the study of . Recently, an ordinary air-layered patch antenna widely applied in consumer fixed access point or similar products and enhanced by metamaterial super-strate structure is successful constructed and simulated. According to the measured result, the proposed metamaterial antenna radome can improve the antenna gain to about 2.0 dB.