The invention belongs to the technical field of
wireless communication, provides a fractal structure on-
chip antenna applied to a
CMOS process, and the antenna is used for solving the problems of
low gain and low efficiency of the existing
millimeter wave frequency band on-
chip antenna. The on-
chip antenna provided by the invention has a fractal structure, has the characteristic of wide bandwidth, and is suitable for
signal transmission of
multiple frequency bands; meanwhile, an artificial magnetic conductor structure loaded under the
fractal antenna can realize total reflection of electromagnetic
waves, so that the loss of the electromagnetic
waves in the
silicon substrate with
low resistance and high
dielectric constant is reduced, and the
gain of the antenna is increased; a
dielectric resonator loaded on the
passivation layer can gather electromagnetic
waves upwards, so that the loss of the substrate is reduced, the
directivity of
antenna radiation is improved, and the
antenna gain is improved. In conclusion, the invention provides the fractal structure on-chip antenna which is based on the
CMOS technology, is applied to the
millimeter wave frequency band and is loaded with the artificial magnetic conductor and the
dielectric resonator at the same time, and the
gain and the working bandwidth of the antenna can be remarkably improved.