Single-feed dual-frequency dual polarized microstrip antenna with hexagonal slot

A novel dual frequency, dual polarized operation of a compact single feed square microstrip patch antenna embedded with a hexagonal slot is presented. The proposed antenna provides a size reduction up to 45% and 36% for the two resonant frequencies compared to standard rectangular patches. This design also gives enhanced bandwidth, as high as 2.86% and 2.34%, for the two frequencies with a very low operating frequency ratio.