Design and Manufacture of the Wide-Band Aperture-Coupled Stacked Microstrip Antenna

The X-band wide band aperture-coupled stacked mi- crostrip antenna is studied and manufactured. Based on the finite- difference time-domain method, a parametric study of the input impedance of the antenna is presented, and the effects of some pa- rameters which are not easy to control in manufacture of the antenna impedance are illustrated. The structure of screw-plane-support is used for the manufacture of this kind of antenna. And several notes for manufacture are considered based on the parameter analysis. The measured bandwidth in which VSWR ≤ 2 is greater than 50%. The measured results are basically accordant to numerical simulated re- sults. It testifies the capability of the model in expanding bandwidth and validity of this structure. The radiation patterns within operation bandwidth are presented and discussed.