Filter, antenna apparatus, and communication device

An antenna apparatus, comprising:

• a circuit board;
• and
• a filter, comprising:
• a first resonant body;
• a second resonant body, stacked with the first resonant body, wherein the second resonant body is decoupled from the first resonant body;
• at least one first connector that penetrates the second resonant body and is decoupled from the second resonant body, wherein a first end of the first connector is coupled to the first resonant body, and a second end of the first connector extends out of the second resonant body;
• and
• at least one second connector, wherein a first end of the second connector is coupled to the second resonant body, and the second connector and the first connector are disposed on a same side of the first resonant body.

A communication device, comprising:

• a mounting bracket and a antenna apparatus which comprises:
• a circuit board;
• and
• a filter which comprise:
• a first resonant body;
• a second resonant body, stacked with the first resonant body, wherein the second resonant body is decoupled from the first resonant body;
• at least one first connector that penetrates the second resonant body and is decoupled from the second resonant body, wherein a first end of the first connector is coupled to the first resonant body, and a second end of the first connector extends out of the second resonant body;
• and
• at least one second connector, wherein a first end of the second connector is coupled to the second resonant body, and the second connector and the first connector are disposed on a same side of the first resonant body, wherein the antenna apparatus is disposed on the mounting bracket.