Chip-type antenna device

The utility model relates to a chip-type antenna device, which comprises a single layer or a plurality of layers of dielectric substrates, a radiator and a grounded radiator; the radiator is formed on the upper surface, the lower surface or the middle layer of one end of the substrate; one end of the radiator extends to the middle of the substrate to form an impedance matching branch, is bent and extends to the end surface of the substrate, and is connected with a feed signal adaptor end; one or a plurality of first coupling electrodes are formed on the radiator; the grounded radiator is formed on the upper surface, the lower surface or the middle layer of the other end of the substrate; one end of the grounded radiator is a grounded end which extends to the end surface of the substrate; one or a plurality of second coupling electrodes are formed on the grounded radiator; the second coupling electrodes and the first coupling electrodes are to the opposite and can produce coupling effect; and consequently, the