Miniaturized low-frequency microwave ceramic dielectric antenna

The utility model discloses a miniaturized low-frequency microwave ceramic dielectric antenna which has small size and good receiving effect and can receive various electromagnetic waves of polarization form and satisfy the requirements of mobile devices. The utility model is characterized in that an upper cover (1) is connected with a lower cover (2), and a ceramic dielectric body (3) and a grounding plate (4) are installed between the two covers. The grounding plate (4) is arranged on a supporter (10) which protrudes on the inner surface of the lower cover (2), and the upper surface of the supporter (10) is in contact with an electrode layer (301). One end of a feed nail (5) is connected with the upper electrode layer (301) on the upper surface of the ceramic dielectric body (3), while the other end of the feed nail (5) is connected with the core thread of a feed cable (6) by passing through the grounding plate (4). A corresponding shielding layer of the feed cable (6) is connected with the grounding plate (4) whose lower surface is connected with a shielding box or cover (9) for shielding the connecting point between the feed nail (5) and the core thread of the feed cable (6). The other end of the feed cable (6) passes through the shielding box or cover (9) and the supporter (10) to be led out of a box body which is composed of the upper cover (1) and the lower cover (2).