Single-feed dual-frequency dual-polarized slotted square microstrip antenna

A novel dual frequency dual-polarized square microstrip patchantenna embedded with a slot is presented. The proposed antenna offers tunability of the frequency ratio between the two frequencies by adjusting theslot dimensions. This configuration also provides a size reductionup to -51 and 35% for the two modes as compared to a square microstrip patch antenna. ® 2000 John Wiley & Sons, Inc. Microwave Opt Technol Lett 25: 395-397, 2000.