Patent ID: 6222488
Filing Date: 2001-04-24
Classification: H01Q

Abstract:
An antenna structure for communication, used in a base station of the radio communication system as a signal transceiver between the base station and several mobile terminals, comprising:a slot coupled microstrip patch, which is connected to a signal source so as to radiate electromagnetic waves;a reflector, which is attached to the back plane of the slot coupled microstrip patch in the manner of electrical isolation so that the backward radiated electromagnetic waves would be reflected forward;an antenna combination, which is cascaded in front of the slot coupled microstrip patch in the manner of electrical isolation so as to increase the half-power beamwidth of the electromagnetic waves, also comprising:a front-plate, which comprises a first flat plate, a second flat plate, and a curved plate used to connect the first flat plate and the second flat plate as the first flat plate and the second plate are placed in the same plane and electrically connected to the curved plate; andat least one patch, which is parallel to the first plate and the second plate and connected to the front-plate in the manner of electrical isolation, the area of each patch is the same as the projected area of the front-plate onto the patch so as to increase the radiation power of the electromagnetic waves.