Date of Award
Fall 1971
Document Type
Thesis - Restricted
Degree Name
Master of Science (MS)
Department
Electrical and Computer Engineering
First Advisor
Ishii, Thomas K.
Second Advisor
Sedivy, J. K.
Third Advisor
Heinen, James A.
Abstract
When a microwave system is influenced by a duct the radiation pattern is distorted. In this study the distortion caused by five different types of ducts is experimentally determined employing a 22 milliwatt microwave system at 9. 36GHz. A theoretical relationship is then derived for one specific case, the "L"-duct, which relates the distorted radiation pattern to the geometrical configuration of the duct. Experimentally, the beam width, measured at the 3db point, went from 9 degrees to 32 degrees. Theoretically, the beam width went to 90 degrees. Error coefficients are derived, therefore, which force the theoretical values to coincide more closely with the experimental values.
Recommended Citation
Offerdahl, David C., "The Influence of Ducts on Radiation Patterns" (1971). Master's Theses (1922-2009) Access restricted to Marquette Campus. 4590.
https://epublications.marquette.edu/theses/4590