Photon crystal patch antenna

The invention discloses a photon crystal patch antenna. The patch antenna fixed on the antenna substrate is connected to a microstrip feeder; an incentive source feeds power to the patch antenna via a feeding port through the a microstrip feeder; the circuit holes are transversely and vertically arrayed on the facial surface of the antenna substrate with equal distances; the reverse surface of the antenna substrate is fixed with a rectangular metal frame; the rectangular metal frame is embedded to periphery of the circular hole. The invention adds the photon crystal structure to the substrate medium of the patch antenna to form a photon forbidden strip; in the frequency range of the forbidden strip, the electromagnetic waves are restricted, which can not be disseminated to any direction; the surface wave along the substrate of the medium can be restricted by the forbidden strip effect of the photon crystal; and the absorption of the electromagnetic wave can be reduced for the antenna substrate; the energy in the antenna substrate of the photon crystal is significantly reflected; the reflective energy from the electromagnetic wave to the free space is strengthened; the returning wave consumption of the antenna is effectively reduced and the antenna argument is increased; so that the invention has the applications in the field of mobile communication, satellite communication and avigation and so on.