Abstract:
An antenna mast incorporates a single strand of spring wire wound into a closed coil section at a base or bending fulcrum of the antenna mast. This closed coil section acts as a straight section of wire, for purposes of RF reception characteristics, when the antenna mast is not deflected. A center strand of wire enters and exits the closed coil section from opposite sides, reducing conductive length changes attributable to flexion of the antenna mast. As a result, tuning of the antenna mast to specific frequencies remains relatively stable even when the antenna mast is deflected, for example, by wind deflection forces or by contact with objects.
Abstract:
A fastening structure for an antenna module assembly (10) is disclosed. The fastening structure for an antenna module assembly (10) includes a cover (14), a gasket inner seal (16), a circuit board (18) including at least one antenna element, and a base (20). The gasket inner seal (16) is placed over the circuit board (18). The gasket inner seal (16) and circuit board (18) are intermediately located between the cover (14) and the base (20). The base (20) includes a plurality of beveled snap-tab receiving portions (20e) integrally located about a base perimeter (20f). The beveled snap-tab receiving portions (20e) engage an inner perimeter (14a) of the cover (14) defined by flexible snap-tabs (14b) to fasten and matingly secure the cover (14) to the base (20).
Abstract:
An antenna system includes a detachable assembly including a circuit board that is connected to a cover by a resilient member. A bezel is adhesively attached to the glass of a vehicle having conductive antenna elements on the vehicle glass. The bezel includes guide surfaces and locating surfaces that accurately position the circuit board and antenna feed wire relative to the vehicle glass. The cover and circuit board can be detached from the bezel for servicing of the circuit board, and the guide and locating surfaces of the bezel provide for accurate positioning of a replacement detachable upper assembly during servicing/repair of the antenna system.
Abstract:
A panel-mounted vehicle antenna module (10) includes exterior and interior components (14, 16) that are joined in a single operation to simultaneously achieve both mechanical fastening of the module and through-the-panel electrical connections of the antenna. The exterior and interior components (14, 16) are equipped with electrical connector terminals (28, 65) that are coupled when the exterior and interior components (14, 16) are joined, and alignment features that ensure accurate alignment of the connector terminals (28, 65). The exterior component (14) is temporarily retained against the panel (12), the interior component (16) is temporarily attached to the exterior component (14), and a bolt (70) is driven from the interior component (16) into the exterior component (14) to complete the mechanical attachment and electrical connections. Electrical cables (66) hard-wired to the interior component (16) are connected to the vehicle wiring harness to complete the installation.