| 摘要 |
A switch element (11) between a radiator (3) and an earth plate (2), near the unsupported end of the radiator, can provide a connection having a low impedance. When the switch element is set to conduct, the radiator has a desired second resonant frequency that is higher than a first resonant frequency. The radiator is disposed at a distance parallel to the earth plate, and is connected to the earth plate by a short circuit plate (3a). A minimum voltage is present at the connection of the radiator to the earth plate, while a first maximum voltage is present at the unsupported end of the radiator. Independent claims are also included for the following: (a) a hand-held radio set; (b) and the use of an antenna arrangement or design of a hand-held radio set. |
