| 摘要 |
PURPOSE: A stretching-operated antenna for receiving/transmitting double bandwidth is provided to improve the selectivity of frequency by dividing a central part of a whip and providing a feeding conductor on a dividing unit and an end unit. CONSTITUTION: An upper portion of a whip(70) is provided with a knob(71) capable of hanging on a helical(60). A nonconductor medium member(72) is inserted between the whip(70) and the knob(71). An upper feeding conductor(73) is located on the upper side of the whip(70) in which a rod is completely into a terminal. A first longitudinal feeding conductor(75) is installed on the end of the whip(70) in which the rod is completely stretched from the terminal. A second longitudinal feeding conductor(80) is installed between the upper feeding conductor(73) and the first longitudinal feeding conductor(75). The second longitudinal feeding conductor(80) is provided with a tuning conductor(85) for setting and matching a frequency bandwidth.
|
