RADIATION SHIELDING AND RANGE EXTENDING ANTENNA ASSEMBLY

摘要

An antenna assembly for a radio transmitting device. The antenna assembly includes a radiation absorber defining an open curved shape in cross section, so as to define an open transmission area. A driven antenna is disposed adjacent to the open transmission area so that during use some of the radiation signal emitted from the antenna is absorbed by the radiation absorber. The radiation signal that is not absorbed by the radiation absorber is transmitted through the open transmission area for reception by a remote receiver. At least one parasitic radiation redirection element receives radiation emitted from the antenna. The parasitic radiation redirection element directs a portion of the radio signal toward the open transmission area, so as to extend a transmission range of the antenna assembly, and thus extend the transmission range of the radio signal transmitting device. By this construction, at least some of the radiation signal that is emitted from the antenna in directions toward the user is blocked by the radiation absorber from being transmitted to the user and/or directed for transmission through the transmission side. Thus, in accordance with the present invention, the inventive antenna assembly prevents unwanted exposure of the user to potentially harmful radiation, while providing an enhanced and extended transmission signal to enable improved communication.