Directivity Enhancement of Microstrip Patch Antennas Using a Dieletric Superstrate
In this paper, we present a systematic design methodology for enhancing the directivity of microstrip patch antennas (MPAs), by using it as an exciter of a Fabry-Perot (FP) 6 resonant cavity. The design procedure involves three steps: (i) determing the resonance frequency of the empty cavity, with the MPA removed, when operating in the receive mode; (ii) designing the patch antenna to operate at the same frequency in the presence of the superstrates; (iii) finally, we operate the composite system in the transmit mode to investigate its aperture distribution that provides us a clue for enhancing the directivity. We show that the directivity can be enhanced by more than 8 dB, over that of the MPA without the superstrate, by using either planar or curved superstrates as covers for the MPA.
Yanfei Li Raj Mittra Guizhen Lu Wenhua Yu
Information Engineering School,Communication University of China,Beijing 100024,China Electromagnetic Communication Laboratory,319 EE East,The Pennsylvania State University University Pa Information Engineering School,Communication University of China,Beijing 100024,China;Electromagneti
国际会议
Progress in Electromagnetics Research Symposium 2009(2009年电磁学研究新进展学术研讨会)(PIERS 2009)
北京
英文
1455-1459
2009-03-23（万方平台首次上网日期，不代表论文的发表时间）