Infrared mapping of transient electromagnetic fields radiated by high power microwave pulsed sources

Author

Norgard, John D. ; Sega, Ronald M. ; Harrison, Michael G. ; Pohle, Hugh H.

Author_Institution

Colorado Univ., Colorado Springs, CO, USA

Volume

39

Issue

6

fYear

1992

fDate

12/1/1992 12:00:00 AM

Firstpage

1912

Lastpage

1920

Abstract

The intensity of the transient field radiated from a high-power microwave (HPM) pulsed source is measured using an infrared (IR) mapping technique. The electromagnetic (EM) waveguide mode generated in the interior source region of the HPM source is determined. The transverse electromagnetic (TEM) mode excited in the antenna feed structure is mapped in the cross section of the feed horn. The radiated EM field exterior to the HPM source in the main beam of the TEM horn is mapped to determine the near and far field structure of the HPM source

Keywords

antenna feeders; electromagnetic fields; infrared imaging; microwave generation; microwave measurement; EM waveguide mode; IR mapping; IR thermograms; TEM mode; antenna feed structure; cross section; feed horn; high power microwave pulsed sources; radiated EM field; transient electromagnetic fields; Antenna measurements; Electromagnetic fields; Electromagnetic measurements; Electromagnetic radiation; Electromagnetic transients; Electromagnetic waveguides; Feeds; Microwave measurements; Microwave theory and techniques; Pulse measurements;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.211386

Filename

211386