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结构与原理 本文所介绍的台灯室内天线是一种有源电视接收天线,它利用台灯的金属蛇形管作为电视接收的一个振子,在灯罩上设置U段接收振子,在底座上设有羊角天线,可通过旋转型波段开关选择不同接收天线振子。放大板电路能与电视机同步开关:台灯与天线可相互独立使用。其外形图如图1所示。
Structure and principle The table lamp indoor antenna introduced in this paper is an active TV receiving antenna, which uses the lamp metal snake tube as a television receiver to receive a set of U-segment receiving oscillator on the lampshade, the base is provided with a claw antenna , You can select the different receiving antenna oscillator by rotary type band switch. Amplifier circuit can be synchronized with the TV switch: Table lamp and antenna can be used independently of each other. The outline figure shown in Figure 1.