Microstrip Patch Antenna Bandwidth Enhancement Using AMC/EBG Structures

Table 2

CP-XP ratio comparison.

Prototype	CP-XP ratio (E plane, dB)	CP-XP ratio (H plane, dB)
Patch antenna	25.81	25.04
Patch antenna-EBG	30.43	28.79
Patch antenna-AMC	13.85	9.43