Atmospheric Attenuation of 400 GHz Radiation Due to Water Vapor

Author

Weber, Marcus J. ; Yang, Benjamin B. ; Kulie, Mark S. ; Bennartz, Ralf ; Booske, John H.

Author_Institution

Dept. of Electr. & Comput. Eng., Univ. of Wisconsin-Madison, Madison, WI, USA

Volume

2

Issue

3

fYear

2012

fDate

5/1/2012 12:00:00 AM

Firstpage

355

Lastpage

360

Abstract

We present an experimental study of electromagnetic losses resulting from atmospheric attenuation due to water vapor on 400 GHz radiation. A hermetically sealed, high quality factor quasi-optical resonator system permits the precise control of the atmospheric water vapor content, and allows for measurement of electromagnetic losses. The empirically determined losses are compared with predictions by various different electromagnetic attenuation models. Close agreement is demonstrated with four of the models, while another differs by more than an order of magnitude at higher values of water content.

Keywords

atmospheric electromagnetic wave propagation; atmospheric humidity; hermetic seals; optical losses; optical resonators; submillimetre wave propagation; terahertz waves; GHz radiation; atmospheric water vapor content; electromagnetic attenuation models; electromagnetic losses; hermetically sealing; magnitude order; quality factor; quasioptical resonator system; water vapor; Atmospheric measurements; Atmospheric modeling; Atmospheric waves; Attenuation; Attenuation measurement; Educational institutions; Temperature measurement; Atmospheric electromagnetic attenuation; quality factor; resonator; terahertz (THz); water vapor;

fLanguage

English

Journal_Title

Terahertz Science and Technology, IEEE Transactions on

Publisher

ieee

ISSN

2156-342X

Type

jour

DOI

10.1109/TTHZ.2012.2189909

Filename

6194360