

Type of Document Master's Thesis Author Tenerelli, Peter A. Jr. Author's Email Address peter_tenerelli@lcc.com URN etd-71098-185056 Title DIFFRACTION BY BUILDING CORNERS AT 28 GHz: MEASUREMENTS AND MODELING Degree MASTER OF SCIENCE Department Electrical Engineering Advisory Committee
Advisor Name Title Dr. Charles Bostian Committee Chair Camilla Stivers Committee Member Dr. Ira Jacobs Committee Member Dr. Warren Stutzman Committee Member Michael M. Harmon Committee Member Roe-Hoan Yoon Committee Member Keywords
- diffraction
- propagation
- LMDS
- 28 GHz
- measurements
Date of Defense 1998-06-03 Availability unrestricted Abstract This thesis presents the results of a 28 GHz continuous-wave (CW) diffraction measurement campaign in the Washington, DC area. It describes the measurement approach including information on equipment and testing methods. Also described are the various parameters that affected the diffraction loss. Observed diffraction losses showed little dependence on polarization and building material. For diffraction angles greater than 5 degrees, a simple linear equation was fit to the data and accurately describes the diffraction loss. A logarithmic equation describes the dependence at smaller angles. The model developed shows very good agreement with theory and other measurements.Also included are an overview of the fixed wireless industry, a discussion of system design issues, and a review of the historical and mathematical development of diffraction theory.
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