Patent ID: 6861988

Claim:
A patch antenna for operation in at least two frequency bands, having the following features: a reflector, at least two patch antenna element arrangements, constructed on the reflector and/or arranged in front of the reflector, said at least two patch antenna element arrangements comprising a lower frequency band patch antenna element arrangement for a lower frequency band and a higher frequency band patch antenna element arrangement for a higher frequency band, the lower frequency band patch antenna element arrangements and the higher frequency band patch antenna element arrangement each having at least one active feed patch with an associated slot structure and a passive capacitively coupled cover patch, a base plate, the lower frequency band patch antenna element arrangements and the higher frequency band patch antenna element arrangement being located on the base plate, the cover patch of the lower frequency band patch antenna element arrangement forming the base plate for the passive cover patch of the higher frequency band antenna element arrangement, at least one feed patch including a slot arrangement having an H-shaped slot structure formed therein, and a feed cable arrangement, the slot structures being fed via said feed cable arrangement.