doc.: IEEE /166r0 Submission March 2005 Slide 1 Hiroyuki Nakase, Tohoku Univ. Project: IEEE P Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [development of digital modulation system for 60GHz wireless signal evaluation] Date Submitted: [16 March, 2005] Source: [Hiroyuki Nakase, and Hiroshi Oguma] Company [Research Institute of Electrical Communication, Tohoku University] Address [Katahira, Sendai, , Japan] Voice:[ ], FAX: [ ], ] Re: [] Abstract:[Description of equipments for evaluation of 60Ghz digital communication] Purpose:[Contribution to mmW SG3c at March 2005 meeting.] Notice:This document has been prepared to assist the IEEE P It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein. Release:The contributor acknowledges and accepts that this contribution becomes the property of IEEE and may be made publicly available by P

doc.: IEEE /166r0 Submission March 2005 Slide 2 Hiroyuki Nakase, Tohoku Univ. How to evaluate 60Ghz signals? Design for multi-user wireless system –Measurement of delay profile –BER/FER evaluation using several modulation scheme –Device evaluation using modulation signal, not CW Generator and evaluation equipment for 60Ghz band

doc.: IEEE /166r0 Submission March 2005 Slide 3 Hiroyuki Nakase, Tohoku Univ. Oscilloscope: TDS 7154 (Tektronix, 1.5GHz (20GSample/s)) Arbitrary Waveform Gen.: AWG520 (Tektronix, 1GHz/Sample x2ch, 10bit×4M word) Vector Signal Generator: Agilent ESG E8267C (low phase noise, 1GHz I/Q, freq. ~20GHz) Local Source: Agilent PSG E8247C (20GHz) with mmWave Source Agilent 83557A (V band) Up Converter/Down Converter: Baseband design and demodulation: Advanced Design System(Agielnt technologies) Antenna: Horn type(23dBi), Omni antenna (6dBi)

doc.: IEEE /166r0 Submission March 2005 Slide 4 Hiroyuki Nakase, Tohoku Univ. LAN Tek AWG520 1GHz clock PSG E8267 PSG E8257D mmWave Source 83577A LO/4 IF 5GHz Up-Converter 61GHz Down- Converter 61GHz Control line LO/4 Tek TDS Gs/s I,Q 2ch PSG E8257D mmWave Source 83577A 1. Generate baseband waveform data using ADS. 2. Send the data to AWG520 using LAN 3. Generate 5.1GHz modulated IF signal using E8267, and transmit up-converted 61GHz. 4. Down-convert received signal to 1GHz band. 5. Sampling using Oscilloscope TDS7154, and send to ADS using LAN LAN

doc.: IEEE /166r0 Submission March 2005 Slide 5 Hiroyuki Nakase, Tohoku Univ. Example : generation of modulation signal OFDM (832 carrier, 225MHz BW)

doc.: IEEE /166r0 Submission March 2005 Slide 6 Hiroyuki Nakase, Tohoku Univ. Example : BER evaluation

doc.: IEEE /166r0 Submission March 2005 Slide 7 Hiroyuki Nakase, Tohoku Univ. Example : EVM evaluation

doc.: IEEE /166r0 Submission March 2005 Slide 8 Hiroyuki Nakase, Tohoku Univ. Spectrum and EVM measurement Basic characteristics of the system TX and RX are connected using wire Measured EVM : 3.967%