Antenna feeding arrangement

A dual polarized aperture coupled patch antenna element, including at least one antenna patch and a feeding arrangement, wherein said feeding arrangement comprises:

• a ground plane including:
• a first aperture slot and a second aperture slot, where said aperture slots cross each other perpendicularly;
• a feeding plane including:
• a first antenna port for feeding microwave energy via a first feeding junction into a first pair of feed lines which extend in parallel along said first aperture slot, on each side thereof;
• a second antenna port for feeding microwave energy via a second feeding junction into a second pair of feed lines which extend in parallel along said second aperture slot, on each side thereof;
• and
• where said feed lines cross each other in at least one point, at a mutual distance, wherein
• at least a part of said feeding arrangement is irregularly configured for compensating for an imbalance caused by said crossing of said feed lines, whereby an increased isolation between said antenna ports is achieved.