US 2007/0176607 A1 · System and method for testing information handling system chassis shielding effectiveness

Abstract

Information handling system chassis RF shielding is accurately characterized in a repeatable and rapid manner with a stirring device disposed within the chassis. An RF signal from an RF signal source disposed in the chassis emits a more homogeneous and uniform field due to movement of reflective surfaces of the stirring device within the chassis. For example, an RF receiver located outside the chassis measures the RF signal received from the chassis over one or more complete revolutions of the stirring device to provide improved uniformity of the RF field maximized or averaged over each revolution. The reflective surface is interchangeable to support testing of shielding for chassis of different sizes and rotate vertically and horizontally to average out both vertical and horizontal polarization.

Claims20

Dependent claims

A system for testing information handling system chassis shielding, the system comprising:

an information handling system chassis having an inside and an outside, the inside sized to contain information handling system processing components;
an RF signal source disposed inside the chassis and operable to output an RF signal inside the chassis;
an RF receiver disposed outside the chassis and operable to detect the RF signal outside the chassis to determine RF shielding associated with the chassis;
and
a stirring device disposed inside the chassis and having a moving reflective surface operable to distribute RF signals from the RF signal source through the chassis to the RF receiver.

2 more elements

Dependencies are inferred from the claim text.

System and method for testing information handling system chassis shielding effectiveness

Life of this patent

System and method for testing information handling system chassis shielding effectiveness

Life of this patent

Abstract

Claims20