Wireless Power GUI Presented by: Alex Zellner and Dr. Corey Bergsrud CAPT Mark Oesterreich, USN Commanding Officer Dr. Brett Seidle, SES Technical Director Statement A: Approved for public release; distribution is unlimited 04/10/2019

Wireless Power Analysis GUI: Capability Overview 04/10/2019

WP GUI: Display 04/10/2019

WP GUI: Operating Instructions Con The Operating Instructions consist of: - Assumptions / Equations - Examples / Instructions - References 04/10/2019

WP GUI: Data/Reporting Features 04/10/2019

WP GUI: Primary Sections Parametric Output Input Variables Intermediate Efficiencies 04/10/2019

WP GUI: Input Variables Section Expanded view: Parametric Variables 04/10/2019

WP GUI: Efficiency Graphs Collection Atmospheric

WP GUI: Efficiency Graphs Rectenna Library Conversion Boundary Conditions 04/10/2019

WP GUI: Output Variables Analysis Summary DC Power Output 04/10/2019

Advanced Features 04/10/2019

Atmospheric Attenuation Equations (ITU): Path attenuation Temperature, pressure, and humidity Database (Earth System Research Laboratory) Temp. and Specific Humidity Multiple altitudes, across the globe Monthly values from 1999-2017 Does not assume constant atmosphere Assumes cloudless atmosphere Raw data from database [8] Add Kristina’s help 04/10/2019

Generate Report 1) Saves current state of tool 2) Reopen at a later time 04/10/2019

Units Conversion Unit selection / conversion in Options Tab All displayed variables 04/10/2019

Space Solar Satellite – to – Mobile Ground Receiver Array(s) Example Space Solar Satellite – to – Mobile Ground Receiver Array(s) 04/10/2019

Example: Supporting Electrified Battlefield Wirelessly power a mobile ground station from a satellite How is it affected by seasonal change? RF SSPS Initial Parameters 35 GHz frequency 10 MW transmit power 1 km2 transmit aperture area Geosynchronous Altitude 36,000 km 04/10/2019

Example 04/10/2019

Example 04/10/2019

Example 04/10/2019

Example 04/10/2019

Example 04/10/2019

Thank you for your time and attention 04/10/2019

References [1] N. Shinohara, “Beam efficiency of wireless power transmission via radio waves from short range to long range,” Journal of Korean Institute of Electromagnetic Engineering and Science, Vol. 10, No.4, Dec. 2010. [2] W.C. Brown and E.E. Eves, “Beamed microwave transmission and its application to space,” IEEE Trans. MTT, Vol.40, No.6, June 1992. [3] W.C. Brown, Electronic and Mechanical Improvement of the Receiving Terminal of a Free-Space Microwave Power Transmission System, Raytheon Company, MA, USA, Tech. Rep. PT-4964, Aug. 1977, NASA Rep. CR-135194. [4] J.O. McSpadden, L. Fan, and K. Chang, “Design and experiments of a high-conversion-efficiency 5.8-GHz rectenna,” IEEE Trans. MTT, Vol.46, No.12, pp.2053-2060, Dec. 1998. [5] P. Koert, J. Cha, and M. Macina, “35 and 94 GHz rectifying antenna systems,” in SPS 91-Power From Space Dig., Paris, France, Aug. 1991, pp.541-547. [6] C. Bergsrud, R. Bernaciak, S. Chaieb, and J. Casler. "Rectenna Array Equipped on Satellites", Journal of Spacecraft and Rockets, Vol. 53, No. 3 (2016), pp. 480-493. https://doi.org/10.2514/1.A33262 [7] Radiocommunication Sector of the International Telecommunication Union (ITU-R). “Recommendation ITU-R P.676-11: Attenuation by Atmospheric Gases.” International Telecommunication Union. Sept. 2016. [8] Earth System Research Laboratory. “Monthly/Seasonal Climate Composites.” National Oceanic & Atmospheric Administration. <https://www.esrl.noaa.gov/psd/cgi-bin/data/composites/printpage.pl> [9] B. Strassner and K. Chang, “Microwave power transmission: historical milestones and system components,” Proc. Of the IEEE, Vol. 101, No.6, June 2013. [10] J. Tatum, “Radio Frequency, Directed Energy Weapon Design Tool,” Defense Systems Information Analysis Center, Vol. 5, No. 4, Fall 2018. 04/10/2019