Patent ID: 7038556
Filing Date: 2006-05-02
Classification: H01P

Abstract:
1. A waveguide type signal attenuator, comprising: a conductive housing, constructed by combining a lower conductive plate and an upper conductive plate into a single body and formed therein with a waveguide of an elongated cavity of which an entrance and an exit are opened; and a resistor sheet, formed with opposite V-grooves at a signal input side and a signal output side thereof, respectively, and placed between the lower conductive plate and the upper conductive plate so as to divide the waveguide along a section between the entrance and the exit of the waveguide, in a direction of length at a half-level of the waveguide, for attenuating an input signal applied into the signal input side through the entrance of the waveguide and outputting an attenuated input signal to the signal output side, wherein one of the upper and lower conductive plates is formed with a resistor sheet setting groove in which the resistor sheet is placed and the other of the upper and lower conductive plates is formed with 11-shaped resistor sheet holding protrusions which support both edges of a surface of the resistor sheet.