| 摘要 |
A multiple frequency coupler (10) establishes a low noise communication path, through the windshield of a vehicle (16), from a multiple frequency wireless telephone (14) or multiple single frequency telephones, each operating at a different frequency, in the vehicle to the exterior of the vehicle. The coupler (10) includes two preferably like-shaped internal and external elements (22, 32) that are oriented face to face with each other, with the windshield sandwiched between them. Each element (22, 32) is tapered, and the elements are juxtaposed with each other such that the wider end of one element is generally opposite the narrower end of the other. Also, a multiple frequency radiator (112) is attached to the external element (22). The radiator includes plural radiating elements (114, 116) that are separated from each other and that are attached to a common base, with each radiating element being configured for radiating a respective frequency. |
