ELECTROMAGNETIC WIRELESS POWER DELIVERY TEST AND MEASUREMENT REPORT FOR WATTUP GEN1-20 TRANSMITTER and DIAMOND RECEIVERS REPORT NUMBER: 15U22048-E1 ISSUE DATE: NOVEMBER 3, 2015 Prepared for ENERGOUS CORPORATION 3590 NORTH FIRST STREET SAN JOSE, CA 95134 Prepared by UL VERIFICATION SERVICES INC. 47173 BENICIA STREET FREMONT, CA 94538, U.S.A. TEL: (510) 771-1000 FAX: (510) 661-0888
REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
DATE: NOVEMBER 3, 2015
Revision History
Rev. --
Issue Date
Revisions
Revised By
11/03/2015
Initial Issue
M. Heckrotte
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
DATE: NOVEMBER 3, 2015
TABLE OF CONTENTS 1.
ATTESTATION OF TEST RESULTS .................................................................................... 4
2.
PURPOSE AND SCOPE ....................................................................................................... 5
3.
TEST METHODOLOGY ........................................................................................................ 5
4.
FACILITIES AND ACCREDITATION .................................................................................... 5
5.
CALIBRATION AND UNCERTAINTY .................................................................................. 6
6.
5.1.
CALIBRATION ................................................................................................................ 6
5.2.
MEASUREMENT UNCERTAINTY ................................................................................. 6
5.3.
TEST AND MEASUREMENT EQUIPMENT................................................................... 6
EQUIPMENT UNDER TEST ................................................................................................. 7 6.1.
DESCRIPTION OF EUT ................................................................................................. 7
6.2.
DESCRIPTION OF TRANSMITTER .............................................................................. 7
6.3.
DESCRIPTION OF RECEIVERS ................................................................................... 7
6.4.
DESCRIPTION OF TEST SETUP .................................................................................. 8
7.
MEASUREMENT PROCEDURES ...................................................................................... 13
8.
RESULTS ............................................................................................................................ 14 8.1.
SINGLE DEVICE TESTS ............................................................................................. 14
8.2.
MULTIPLE DEVICES TEST ......................................................................................... 14
8.3.
MOBILITY TEST ........................................................................................................... 15
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
DATE: NOVEMBER 3, 2015
1. ATTESTATION OF TEST RESULTS COMPANY NAME:
ENERGOUS CORPORATION 3590 NORTH FIRST STREET SAN JOSE, CA 95134USA
EUT DESCRIPTION:
WattUp Transmitter & Receivers
MODEL:
GEN1-20 Transmitter Diamond Receivers
SERIAL NUMBERS:
DBLSPKR_R4003_003 (Transmitter) 2, 6, 8, 20, 21 (Receivers)
DATE OF TESTS:
October 8 & 22, 2015 APPLICABLE PROCEDURES
STANDARD
TEST RESULTS
ENERGOUS TEST PLAN 8-02
PASS
UL Verification Services Inc. tested the above equipment in accordance with the requirements set forth in the above test plan. Measurement Uncertainties were not taken into account and are published for informational purposes only. Note: The results documented in this report apply only to the tested sample, under the conditions and modes of operation as described herein. This document may not be altered or revised in any way unless done so by UL Verification Services Inc. and all revisions are duly noted in the revisions section. Any alteration of this document not carried out by UL Verification Services Inc. will constitute fraud and shall nullify the document. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST, any agency of the Federal Government, or any agency of any government. Approved & Released For UL Verification Services Inc. By:
Tested By:
MICHAEL HECKROTTE PRINCIPAL ENGINEER UL Verification Services Inc.
JEFFREY WU WiSE ENGINEER UL Verification Services Inc.
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
DATE: NOVEMBER 3, 2015
2. PURPOSE AND SCOPE This report documents the results of electromagnetic wireless power delivery measurements to three different receiver configurations at various positions relative to the transmitter.
3. TEST METHODOLOGY The tests and results documented in this report were performed in accordance with Energous Test Plan 8-02 v6.0.
4. FACILITIES AND ACCREDITATION The test sites and measurement facilities used to collect data are located at 47173 and 47266 Benicia Street, Fremont, California, USA. Line conducted emissions are measured only at the 47173 address. The following table identifies which facilities were utilized for radiated emission measurements documented in this report. Specific facilities are also identified in the test results sections. 47173 Benicia Street Chamber A Chamber B Chamber C
47266 Benicia Street Chamber D Chamber E Chamber F Chamber G Chamber H
UL Verification Services Inc. is accredited by NVLAP, Laboratory Code 200065-0. Notes: 1. All measurements documented in this report are outside the scope of the Laboratory’s NVLAP accreditation. 2. The Laboratory used for performing the measurements documented in this report is third party accredited to ISO 17025.
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
DATE: NOVEMBER 3, 2015
5. CALIBRATION AND UNCERTAINTY 5.1.
CALIBRATION
The measuring equipment utilized to perform the tests documented in this report has been calibrated in accordance with the manufacturer's recommendations, and is traceable to recognized national standards, except as noted in the table of test and measurement equipment.
5.2.
MEASUREMENT UNCERTAINTY
The measurement uncertainty level has been estimated for all power measurements performed on the apparatus. PARAMETER DC Power
WORST-CASE UNCERTAINTY 0.03 W
Uncertainty figures are valid to a confidence level of 95%.
5.3.
TEST AND MEASUREMENT EQUIPMENT
The following test and measurement equipment was utilized for the tests documented in this report: Description Electronic Load Mainframe Electronic Load Module Electronic Load Module
Manufacturer Chroma Chroma Chroma
Model 63600-2
Serial Number 636002001009
Cal Date CNR
Cal Due N.A.
63610-80-20
636108003137
07/09/2015
07/09/2016
63610-80-20
63108003170
07/21/2015
07/21/2016
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
DATE: NOVEMBER 3, 2015
6. EQUIPMENT UNDER TEST 6.1.
DESCRIPTION OF EUT
The transmitter is a GEN1-20 WattUp Transmitter. Five samples of Diamond receive antenna arrays are utilized as power receivers.
6.2.
DESCRIPTION OF TRANSMITTER
GEN-1 WATTUP TRANSMITTER SYSTEM COMPONENTS
Description Transmitter
6.3.
Manufacturer Energous
Model GEN1-20
Serial Number DBLSPKR_R4003_003
DESCRIPTION OF RECEIVERS
. WATTUP RECEIVER SYSTEM COMPONENTS
Description Receive Array Receive Array Receive Array Receive Array Receive Array
Manufacturer Energous Energous Energous Energous Energous
Model Diamond Diamond Diamond Diamond Diamond
Serial Number 2 6 8 20 21
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
6.4.
DATE: NOVEMBER 3, 2015
DESCRIPTION OF TEST SETUP
SUPPORT EQUIPMENT Description Desktop PC Monitor USB HUB
Manufacturer Dell Asus Insignia
Model OPTIPLEX 9020 N/A NS-PCH 5421
Serial Number N/A N/A N/A
I/O CABLES Cable No.
Port
Cable Length (m)
Remarks
1 2 3 4
USB USB USB DC Cable (Load & Sense)
3 3 1.5 As required
PC – USB Hub USB Hub – Transmitter USB Hub – Electronic Load Receive Antenna Array – Electronic Load One per Receive Array
SETUP
The distance between the faces of the Transmit and Receive antenna arrays is adjusted as specified for each test. The azimuth of the Receive antenna array relative to the Transmit antenna array is adjusted as specified for each test. Azimuth is defined as the angle between the line that connects the center of the face of the Transmit antenna array and the center of the face of the Receive antenna array, relative to the vector normal to and centered upon the Transmit antenna array. Left and Right Azimuth are defined relative to this normal vector, as seen from behind the Transmit antenna array.
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
DATE: NOVEMBER 3, 2015
SETUP DIAGRAM FOR POWER MEASUREMENTS ON EACH RECEIVE ARRAY
Transmitter
2
Receive Antenna Array
1 Desktop PC & Monitor
4
USB HUB
Electronic Load 3
Semi-anechoic RF Chamber
Control Room
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
DATE: NOVEMBER 3, 2015
SIDE VIEW OF SETUP FOR ALL MEASUREMENTS
The centers of all antenna arrays are placed 55 inches above the semi-anechoic chamber ground plane.
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
DATE: NOVEMBER 3, 2015
SETUP NOTES FOR POWER DELIVERY TO A SINGLE DEVICE
The Azimuth is 0 degrees for all pocket positions. TOP VIEW OF SETUP FOR SIMULTANEOUS POWER DELIVERY TO MULTIPLE DEVICES
For the specified distance and separation, the Azimuths are Left 7.5 degrees for Receiver 1 and Right 7.5 degrees for Receiver 2.
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
DATE: NOVEMBER 3, 2015
TOP VIEW OF SETUP FOR MOBILITY POWER DELIVERY TEST
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
DATE: NOVEMBER 3, 2015
7. MEASUREMENT PROCEDURES The energy pockets are formed at the receiver locations. The receiver antenna arrays deliver DC power to the electronic load which measures received power. The load is s/w controlled to measure voltage and current, and calculates the power delivered. Measurements are made at each position.
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
DATE: NOVEMBER 3, 2015
8. RESULTS 8.1.
SINGLE DEVICE TESTS
Date: Temperature: Humidity:
October 8, 2015 23.9 deg C 48 %RH
Receive Array:
Diamond, s/n 2
Power is directed to locations at various distances. Power is measured at each location.
Distance Range 0 to 5 feet 5 to 10 feet 10 to 15 feet
8.2.
Computed Average Power (∑𝒏(𝑹𝑹)/𝑵) 5.549 W 3.742 W 1.061 W
Number of Measurements (N) 1 3 3
Expected Results >4W >2W >1W
Pass/Fail PASS PASS PASS
MULTIPLE DEVICES TEST
Date: Temperature: Humidity:
October 22, 2015 23.2 deg C 49 %RH
Receive Arrays:
Diamond, s/n 21 for RX1, s/n 20 for RX2
Power is directed to multiple devices simultaneously. Power is simultaneously measured at each location. Distance Range 0 to 5 feet
Computed Average Power (∑𝒏(𝑹𝑹)/𝑵) 6.053 W
Number of Measurements (N) 2
Expected Results >4W
Pass/Fail PASS
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REPORT NO: 15U22048-E1 EUT: WATTUP GEN1-20 TRANSMITTER & DIAMOND RECEIVERS
8.3.
DATE: NOVEMBER 3, 2015
MOBILITY TEST
Date: Temperature: Humidity:
October 22, 2015 23.2 deg C 49 %RH
Receive Arrays:
Diamond, s/n 20 for RX1, s/n 6 for RX2, s/n 8 for RX3, s/n 21 for RX4
Power is directed to four different locations, one location at a time. For each power direction, power is simultaneously measured at each location. Intended Receivers Distance Range 5 to 10 feet
Computed Average Power (∑𝒏(𝑹𝑹)/𝑵) 2.124 W
Number of Measurements (N) 4
Expected Results >2W
Pass/Fail PASS
END OF REPORT
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