Methods for measuring the power linearity of microwave detectors for radiometric applications

Author

Reinhardt, V.S. ; Shih, Y.C. ; Toth, P.A. ; Reynolds, S.C. ; Berman, A.L.

Author_Institution

Hughes Space & Commun. Co., Los Angeles, CA, USA

fYear

1994

fDate

23-27 May 1994

Firstpage

1477

Abstract

This paper discusses and presents experimental results on methods for measuring the power linearity of microwave power detectors to the levels required for radiometric applications. Three methods for measuring detector power linearity are discussed: the two-tone method, the amplitude modulation method, and the constant ratio method. The theory of determining coefficients which characterize the nonlinearity of the detector from experimental data is presented. Experimental results are presented showing that the two-tone method and the constant ratio method agree within experimental error. The difficulties encountered in implementing each of these methods are also discussed.<>

Keywords

amplitude modulation; measurement theory; microwave detectors; microwave measurement; power measurement; radiometers; radiometry; amplitude modulation method; constant ratio method; microwave detectors; power detectors; power linearity; radiometric applications; two-tone method; Amplitude modulation; Detectors; Linearity; Microwave measurements; Microwave radiometry; Microwave theory and techniques; Power measurement;

fLanguage

English

Publisher

ieee

Conference_Titel

Microwave Symposium Digest, 1994., IEEE MTT-S International

Conference_Location

San Diego, CA, USA

ISSN

0149-645X

Print_ISBN

0-7803-1778-5

Type

conf

DOI

10.1109/MWSYM.1994.335132

Filename

335132