| 摘要 |
<p>An attenuator (20) includes a housing (22) defining an interior (24), a front (30), a rear (32), and a rotor (26) mounted between front (30) and rear (32) for rotation within housing (22) about an axis of the rotor (26). First electrical contacts (100, 104) are provided on the housing (22). Second electrical contacts (52-0, 52-1, 52-2, ... 52-10, 52-Z0, 54-0, 54-1, 54-2, ... 54-10, 54-Z0) are provided on the rotor (26). The rotor (26) includes multiple printed conductor (PC) boards (56-0, 56-1, 56-2, ... 56-10, 56-Z0). Each PC board (56-0, 56-1, 56-2, ... 56-10, 56-Z0) includes an electrically relatively non-conductive substrate. One side (110) of each substrate provides conductive areas (112, 114, 116) through which electrically attenuating elements (118, 120, 122) of the attenuator (20) are coupled together to form an attentuating network (112, 114, 116, 118, 120, 122) providing a selected level of attentuation. Electrical contact is made between the first electrical contacts (100, 104) and the electrically attenuating elements (118, 120, 122) of the attentuator (20) through the second electrical contacts (52-0, 52-1, 52-2, ... 52-10, 52-Z0, 54-0, 54-1, 54-2, ... 54-10, 54-Z0).</p> |
