Anechoic test chamber and method of determining a loss...

Details Anechoic test chamber and method of determining a loss... Anechoic test chamber and method of determining a loss...

2005-02-22

2005-02-22

Le, N. (Department: 2858)

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Distributive type parameters

C324S639000

Reexamination Certificate

active

06859047

ABSTRACT:
An anechoic test chamber for testing an electromagnetic loss characteristic of a material specimen has first and second opposed and tapered conical sections. The chamber has an anechoic material covering its inside surface. Feed and receive antennas are disposed on the ends of the conical sections. An aperture plate is disposed between the first and second sections. The aperture plate electromagnetically isolates the first and second conical sections except for the aperture itself. A method of determining an electromagnetic loss characteristic of a material specimen utilizes a dual tapered conical chamber for processing S-parameter measurements to determine impedance, complex permittivity, or complex permeability of the specimen.

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