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| **NTIA Report TR-81-86**The Attenuation of Electromagnetic Waves by Multiple Knife-Edge DiffractionOctober 1981L.E. Vogler                                                                                                                                                                                                                                                                                                                                |
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| **Abstract:**Starting from work by Furutsu, a multiple knife-edge attenuation function is derived. A series representation of the function is developed which is amenable to computer implementation. Comparisons of computer-generated numerical values with known results are presented and discussed.                                                                                                                                                  |
| **Keywords:**attenuation calculations, microwave propagation, multiple knife-edge diffraction                                                                                                                                                                                                                                                                                                                                                             |
| - Title Page; Table of Contents
- Chapter 1, Introduction; Chapter 2, The Multiple Knife-Edge Attenuation Function
- Chapter 3, Equations for Numerical Evaluation; Chapter 4, Example Calculations; Chapter 5, Summary(6.3 MB)
- Chapter 6, Acknowledgments; Chapter 7, References; Bibliographic Data Sheet                                                                                                                                             |
| **Disclaimer:**Certain commercial equipment, components, and software are identified in this report to specify adequately the technical aspects of the reported results. In no case does such identification imply recommendation or endorsement by the National Telecommunications and Information Administration, nor does it imply that the equipment or software identified is necessarily the best available for the particular application or uses. |

| **To request a reprint of this report, contact:**Margaret Luebs, Publications OfficerInstitute for Telecommunication SciencesVoice: (303) 497-3572info@its.bldrdoc.gov | **For technical information concerning this report, contact:**Paul McKenna, Electronics EngineerInstitute for Telecommunication SciencesVoice: (303) 497-3474 or (303) 497-5237pmckenna@its.bldrdoc.gov |
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