October 1989 | Technical Report NTIA TR-89-251
Vegetation Loss Measurements at 9.6, 28.8, 57.6, and 96.1 GHz Through a Conifer Orchard in Washington State
Cite This Publication
David L. Jones, Richard H. Espeland, and Edmond J. Violette, “Vegetation Loss Measurements at 9.6, 28.8, 57.6, and 96.1 GHz Through a Conifer Orchard in Washington State,” Technical Report NTIA TR-89-251, U.S. Department of Commerce, National Telecommunications and Information Administration, Institute for Telecommunication Sciences, October 1989.
Abstract: Propagation measurements were made in the Olympic National Forest of Washington state during October 1987 to examine millimeter-wave signal propagation through conifer vegetation. Linearly polarized continuous-wave signals at 9.6. 28.8. 57.6. and 96.1 GHz were used to evaluate attenuation depolarization, and backscattering from conifer trees. Azimuth and elevation scans were conducted for various transmitter heights and path lengths. Results from the measurements are presented and compared with data gathered from similar measurements taken through deciduous vegetation.
Keywords: attenuation; propagation; millimeter wave; millimeter-wave propagation; backscatter; depolarization; vegetation
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