| 摘要 |
A multiband aerial, especially suitable for a motor vehicle window, or for application to the window, which comprises a single conductor wire which starts from a signal pickup position, terminating in just the one free end, and which includes the FM aerial section and the AM aerial section, with such sections being connected in series, and therefore not requiring phasing, and being electrically isolated by means of an inductor, preferably of box rib pattern, which inductor can function as an open circuit in the FM band and as a short circuit in the AM band. The series of vertical and horizontal segments, forming the sole aerial conductor wire which contains in series such FM section and AM section, can be of variable, but always asymmetrical, geometry or configuration. The resultant multiband aerial can be optimized regarding reception capacity in the various cases, by simply varying the position of the signal pickup point to anywhere on the window, or else by varying the length of the sole aerial wire, or yet again by varying the distance of the wire from the edge of such window. |
