A novel design method of microstrip patch antenna with photonic crystal substrate is proposed and analyzed. The method is different from the traditional one. Early work uses natural materials as the substrate to design microstrip patch antenna. In the work, dielectric cylinder arrays are designed based on periodic waveguide theory to realize the substrates with controllable dielectric constants. Meanwhile, applying dielectric cylinder array and microstrip antenna design theory, we designed and simulated a new type of antenna. The proposed antenna model is compared with homogeneous substrate structure antenna-based microstrip patch antenna and analyzed the radiation characteristics. The consistency of results shows that this method is feasible for antenna design. Afterwards, we fabricated a novel antenna with an equivalent dielectric constant of 2.94, which is further verify the feasibility of the method. Finally, the performance of designed antenna is analyzed with different cylinder height. The results show that the novel antenna design method maybe possess great significance to the design of high-gain miniaturized antenna.

提出并分析了一种新型的光子晶体基板微带贴片天线设计方法。该方法不同于传统的方法。早期的工作使用天然材料作为基板来设计微带贴片天线。在工作中，基于周期波导理论设计了介质圆柱阵列，以实现介电常数可控的基板。同时，应用介质圆柱阵列和微带天线设计理论，设计并仿真了一种新型天线。将所提出的天线模型与基于均质衬底结构天线的微带贴片天线进行了比较，并分析了其辐射特性。结果的一致性表明该方法对于天线设计是可行的。之后，我们制造了一种等效介电常数为 2 的新型天线。94，进一步验证了该方法的可行性。最后，对所设计的天线在不同圆柱高度下的性能进行了分析。结果表明，该新型天线设计方法可能对高增益小型化天线的设计具有重要意义。