Antenna system, communication device, and communication system

An antenna system in a communication device, the antenna system comprising:

• a first antenna apparatus, wherein the first antenna apparatus comprises a first radiating element array and a first reflection plate, the first radiating element array is disposed on a first side of the first reflection plate, the first reflection plate comprises a plurality of first reflection plate through holes, the first reflection plate further has a second side opposite to the first side, and the first side of the first reflection plate and the second side of the first reflection plate are connected through the plurality of first reflection plate through holes;
• and
• a blade, wherein the blade is located on one side of the first antenna apparatus, and the blade is disposed opposite to the plurality of first reflection plate through holes;
• wherein the first antenna apparatus further comprises:
• a first feeder, wherein the first feeder is disposed on the first reflection plate, and the first feeder is configured to feed the first radiating element array;
• and
• a second radiating element array;
• and
• a second feeder, wherein the second feeder is disposed on the first reflection plate, and the second feeder is configured to feed the second radiating element array, wherein the first radiating element array is adjacent to the second radiating element array, a first interval space exists between the second feeder and the first feeder, and a projection of at least a part of the plurality of first reflection plate through holes is located in the first interval space.