Method for comparing the quality of rf absorbers

Details Method for comparing the quality of rf absorbers Method for comparing the quality of rf absorbers

G - Physics

01

R

324/36

G01R 23/00 (2006.01) G01R 29/08 (2006.01) H01Q 17/00 (2006.01)

Patent

CA 2002324

- 11 - ABSTRACT OF THE DISCLOSURE A method for comparing the quality of RF absor- bers uses a TEM cell which is provided with a low-reflec- tion termination, in which cell the absorber wall (5) is equipped with reference absorbers (13). A steep-edged pulse wave is radiated in by means of a pulse generator (9) and a scattered wave reflected by the test absorber (14) is detected by means of a sensor (10). A reflection of the absorber wall is then determined by means of a first calibration measurement. The reference absorber is removed in a test area and a reflection of a metal wall (8) lying behind it is then determined by means of a second calibration measurement. Finally, a reflection of the test absorber (14) arranged in the test area is determined in a comparison measurement.

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