Abstract: An adapter is provided link between auxiliary Satellite Digital Audio Radio Services Receiver and in-dash AM/FM car radio. The adapter proposed in this invention combines together a wireless FM communication links and a hard-wired RF link. The adapter can be easily reconfigured through user interface and implemented in two modes. The adapter structure and two modes application variety did not depend on analog or digital audio signals which have to be transmitted from SDARS receivers (Satellite Digital Audio Radio Services Receiver) to the car stereo through in-dash AM/FM radio.

Abstract: A dual-antenna system for receiving signals transmitted via satellite and by terrestrial stations within a single broadcasting service. The dual-antenna system comprises a multi-layer printed circuit substrate as a mounting plate and a satellite antenna including a patch antenna array which has four microstrip patch antenna radiating elements provided on a top surface of the first backgrounded dielectric substrate mounted on the top face of a multi-layer printed circuit substrate, a second dielectric superstrate covering the top face of the first backgrounded dielectric substrate with the dielectric constant higher than that of the first dielectric substrate, and a low-profile radome having top and bottom sections that join together for waterproofingly housing the multi-layer printed circuit substrate assembly and antenna elements therein.