Broadband attenuation of microwave by hollow cathode discharge plasma

Spencer Kuo, A. Y. Ho

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Summary form only given. The absorption and scattering of microwaves by a structured arc plasma produced inside a bell jar vacuum chamber were studied. Argon plasma was produced in a background pressure of 1 to 10 torr through a steady-state hollow-cathode discharge. The plasma was shown to give rise to strong absorption and scattering of incident microwaves. The difference between the intensities of received signals with and without plasma suggests the attenuation of the test wave by the plasma. Over a very wide frequency band of 4-12 GHz, a greater than 20-35-dB attenuation of the transmitted waves was measured. The attenuation was mainly caused by scattering rather than by absorption, because of the small size of the plasma. There was also no measurable enhancement in the reflected signal.

Original languageEnglish (US)
Title of host publicationIEEE Conference Record - Abstracts
PublisherPubl by IEEE
Pages171-172
Number of pages2
StatePublished - 1990
Event1990 IEEE International Conference on Plasma Science - Oakland, CA, USA
Duration: May 21 1990May 23 1990

Other

Other1990 IEEE International Conference on Plasma Science
CityOakland, CA, USA
Period5/21/905/23/90

Fingerprint

Cathodes
Microwaves
Plasmas
Scattering
Frequency bands
Argon
Vacuum

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Kuo, S., & Ho, A. Y. (1990). Broadband attenuation of microwave by hollow cathode discharge plasma. In IEEE Conference Record - Abstracts (pp. 171-172). Publ by IEEE.

Broadband attenuation of microwave by hollow cathode discharge plasma. / Kuo, Spencer; Ho, A. Y.

IEEE Conference Record - Abstracts. Publ by IEEE, 1990. p. 171-172.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Kuo, S & Ho, AY 1990, Broadband attenuation of microwave by hollow cathode discharge plasma. in IEEE Conference Record - Abstracts. Publ by IEEE, pp. 171-172, 1990 IEEE International Conference on Plasma Science, Oakland, CA, USA, 5/21/90.
Kuo S, Ho AY. Broadband attenuation of microwave by hollow cathode discharge plasma. In IEEE Conference Record - Abstracts. Publ by IEEE. 1990. p. 171-172
Kuo, Spencer ; Ho, A. Y. / Broadband attenuation of microwave by hollow cathode discharge plasma. IEEE Conference Record - Abstracts. Publ by IEEE, 1990. pp. 171-172
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