Measurement of permittivity and permeability of microwave materi

Details Measurement of permittivity and permeability of microwave materi Measurement of permittivity and permeability of microwave materi

1982-08-13

1985-03-26

Tokar, Michael J.

Electricity: measuring and testing

Measuring, testing, or sensing electricity, per se

Frequency of cyclic current or voltage

324 585R, 324 58C, G01R 2704

Patent

active

045076022

ABSTRACT:
Using frequency domain techniques, the system measures the complex permittivity and permeability of different materials in the Ku band (12.4 to 18 GHz). The measuring system comprises a dual horizontal-plane sectoral horn and sample holder assembly. The two horns are placed mouth-to-mouth with the sample holder between them. An input signal is supplied to one horn. The reflected signal from the sample comes back out from the same horn, while the transmitted signal goes through the sample and out via the other horn. The signal source is a frequency synthesizer. A network analyzer and a computer are used to determine the complex permittivity and permeability from the transmission and reflection signals.

REFERENCES:
patent: 4361801 (1982-11-01), Meyer
Cohn: "Microwave Measurement of High Dielectric Constant Materials", IEEE Trans. Microwave Theory and Techniques-Sep. 1966-pp. 406-410.

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