</table>
== Circularly Polarized U-Slot Patch Antenna with Corner Truncations Truncated Corners ==
The rectangular patch with truncated corners is a narrowband antenna. By increasing the foam thickness and cutting out a U-slot from the surface of the patch, one can increase the impedance bandwidth of the antenna as well as its axial ratio bandwidth. Figure 29 shows the geometry of the CP U-slot patch antenna with corner truncations. The following table shows the substrate properties as well as the geometrical dimensions of the CP U-Slot patch antenna: