An experiment for verification of auxiliary transmission line method to evaluate a microwave thermal noise source

Author

Nakano, H. ; Murakami, H. ; Inoue, T. ; Kato, Y.

Author_Institution

Nat. Metrol. Inst. of Japan, Nat. Inst. of Adv. Ind. Sci. & Technol., Tsukuba, Japan

fYear

2002

fDate

16-21 June 2002

Firstpage

72

Lastpage

73

Abstract

In order to verify the usefulness of an auxiliary transmission line method, which we have already proposed to evaluate the noise temperature of a microwave thermal noise source, a liquid nitrogen cooled coaxial noise source system has been constructed and its preliminary experiment has been conducted. Then, this measurement result and a result calibrated to the noise source with two known standards have been compared.

Keywords

electric noise measurement; high-frequency transmission lines; microwave measurement; thermal noise; transmission line theory; N/sub 2/; auxiliary transmission line method verification; liquid nitrogen cooled coaxial noise source system; microwave thermal noise source; noise source calibration; noise temperature; standards; Circuit noise; Coaxial components; Microwave theory and techniques; Noise generators; Noise measurement; Power transmission lines; Radiometry; Signal to noise ratio; Temperature; Transmission line measurements;

fLanguage

English

Publisher

ieee

Conference_Titel

Precision Electromagnetic Measurements, 2002. Conference Digest 2002 Conference on

Conference_Location

Ottawa, Ontario, Canada

Print_ISBN

0-7803-7242-5

Type

conf

DOI

10.1109/CPEM.2002.1034725

Filename

1034725