1. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 1 Project: IEEE P802.15 Working Group for Wireless Personal Area Networks (WPANs) Submission Title: [Implementation feasibility of SSA-UWB pulse wavelets (update) ] Date Submitted: [January 14, 2004] Source: [Honggang Zhang, Kamya Y. Yazdandoost, Kenichi Takizawa, Iwao Nishiyama, Keren Li, Yuko Rikuta, Tetsuya Yasui, Ryuji Kohno ] Company [ (1) Communications Research Laboratory (CRL), (2) CRL-UWB Consortium ] Connector’s Address [3-4, Hikarino-oka, Yokosuka, 239-0847, Japan] Voice:[+81-468-47-5101], FAX: [+81-468-47-5431], E-Mail: [honggang@crl.go.jp, yazdandoost@crl.go.jp, takizawa@crl.go.jp, nisiyama@crl.go.jp, keren@crl.go.jp, rikuta@crl.go.jp, t-yasui@crl.go.jp, kohno@crl.go.jp] Re: [IEEE P802.15 Alternative PHY Call For Proposals, IEEE P802.15-02/327r7] Abstract:[The implementation feasibility issues of optimized SSA-UWB pulse wavelets are investigated, considering the effects of Ultra Wideband antenna, quantization bits and sampling scheme. ] Purpose:[For analyzing the implementation feasibility of SSA-UWB pulse waveform shapes.] Notice: This document has been prepared to assist the IEEE P802.15. 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 P802.15.

2. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 2 Implementation Feasibility of SSA-UWB Pulse Wavelets (Update) Honggang ZHANG, K. Y. YAZDANDOOST, Kenichi TAKIZAWA, Iwao NISHIYAMA, Keren LI, Yuko RIKUTA, Tetsuya YASUI, Ryuji KOHNO Communications Research Laboratory (CRL) & CRL-UWB Consortium

3. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 3 Major Contributors For This Proposal Update Honggang ZHANG Kamya Y. YAZDANDOOST Kenichi TAKIZAWA Iwao NISHIYAMA Keren LI Yuko RIKUTA Tetsuya YASUI Ryuji KOHNO CRL & CRL-UWB Consortium

4. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 4 Outline of presentation 1.Summary of previously proposed SSA-UWB pulse wavelets 2.Effects of quantization and sampling scheme on implementation issues of SSA-UWB pulse wavelets  Using CRL’s SSA-UWB test-bed 3. Effects of two specific Ultra Wideband antennas on implementation issues of SSA-UWB pulse wavelets  T-type antenna designed in CRL-UWB Consortium  K-type antenna designed in CRL-UWB Consortium 4.Conclusion remarks 5.Backup materials

5. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 5 SSA-UWB (Soft-Spectrum Adaptation) philosophy 1. Summary of previously proposed SSA-UWB pulse wavelets  Design a proper pulse wavelet with high frequency efficiency corresponding to any regulatory frequency mask.  Adjust transmitted signal’s spectra adaptively, so as to minimize interference with co-existing systems. 0.96 1.61 1.99 3.110.6 GPS Band

6. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 6 SSA-UWB for interference avoidance, global harmonization and compliance  Global harmonization and compliance is the everlasting aim and basic philosophy of CRL & CRL-UWB Consortium.  SSA-UWB scheme has a wide capability to be harmonized with all the present or future UWB systems and co-exist with various existing narrowband radio systems.  Just changing the kernel functions and shapes of SSA-UWB pulse wavelets to achieve smooth version-up.

7. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 7 Features of SSA-UWB  SSA-UWB with flexible pulse waveform and frequency band can be applied to single and multi-band/multi-carrier UWB by  Free-verse type pulse waveform shaping and  Geometrical type pulse waveform shaping, respectively.  Interference avoidance for co-existence, harmonization for various systems, and global implementation can be realized.  SSA-UWB can flexibly adjust UWB signal spectrum so as to match with spectral restriction in transmission power, i.e. spectral masks in both cases of single and multiple bands.  Scalable, adaptive performance improvement.  Smooth system version-up similar to Software Defined Radio (SDR).

8. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 8 SSA-UWB pulse wavelet with adaptive spectral notches achieving coexistence, flexibility and efficient power transmission Time (128 samples=3.6 ns) 020406080100120140 -1.5 -0.5 0 0.5 1 1.5 2 SSA-UWB optimized pulse wavelet generation Relative amplitude 0.0ns0.56ns1.125ns1.6875ns2.25ns2.8125ns3.375ns 050100150200250300 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 Spectrum characteristics of optimal SSA-UWB pulse wavelet Frequency (1 sample=69.4MHz) Relative amplitude (dB) (3.12GHz)(5.8GHz) 0.0GHz3.47GHz6.94GHz10.41GHz13.88GHz17.35GHz

9. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 9 Broadcast Auxiliary ServiceFixed Satellite Service 200MHz 5.8GHz10GHz1GHz dBm/MHz 3.1GHz Interference avoidance, global harmonization and compliance utilizing optimized SSA-UWB pulse wavelets

10. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 10 2. Effects of quantization and sampling scheme on implementation issues of SSA-UWB pulse wavelets Based on CRL’s SSA-UWB test-bed

11. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 11 MATLAB simulation of SSA-UWB pulse wavelet with various samples per pulse SSA-UWB optimized pulse waveform generation (128 samples=3.6ns) SSA-UWB optimized pulse waveform generation (1024 samples=3.6ns) 020406080100120140 -1.5 -0.5 0 0.5 1 1.5 2 Time (samples) Relative amplitude 0.0ns0.56ns1.125ns1.6875ns2.25ns2.8125ns3.375ns 020040060080010001200 -1.5 -0.5 0 0.5 1 1.5 2 Time (samples) Relative amplitude 0.0ns0.56ns1.125ns1.6875ns2.25ns2.8125ns3.375ns

12. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 12 SSA-UWB optimized pulse waveform generation (1024 samples, 3bit) MATLAB simulation of SSA-UWB pulse wavelet with various quantization bits (2 and 3 bits) SSA-UWB optimized pulse waveform generation (1024 samples, 2bit)

13. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 13 MATLAB simulation of SSA-UWB pulse wavelet with various quantization bits (2 and 3 bits) SSA-UWB optimized pulse waveform generation (1024 samples, 3bit) SSA-UWB optimized pulse waveform generation (1024 samples, 2bit)

14. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 14 SSA-UWB optimized pulse waveform generation (1024 samples, 4bit) SSA-UWB optimized pulse waveform generation (1024 samples, 6bit) 020040060080010001200 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 Time (samples) Relative amplitude 0.0ns0.56ns1.125ns1.6875ns2.25ns2.8125ns3.375ns 020040060080010001200 -0.8 -0.6 -0.4 -0.2 0 0.2 0.4 0.6 0.8 1 Time (samples) Relative amplitude 0.0ns0.56ns1.125ns1.6875ns2.25ns2.8125ns3.375ns MATLAB simulation of SSA-UWB pulse wavelet with various quantization bits (4 and 6 bits)

15. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 15 Spectrum characteristics of SSA-UWB optimal pulse (1024 samples, 6bit) Spectrum characteristics of SSA-UWB optimal pulse (1024 samples, 4bit) 050100150200250300 -70 -60 -50 -40 -30 -20 -10 0 10 Frequency (samples) Relative amplitude (dB) 0.0GHz3.47GHz6.94GHz10.41GHz13.88GHz17.35GHz 050100150200250300 -70 -60 -50 -40 -30 -20 -10 0 10 Frequency (samples) Relative amplitude (dB) 0.0GHz3.47GHz6.94GHz10.41GHz13.88GHz17.35GHz MATLAB simulation of SSA-UWB pulse wavelet with various quantization bits (4 and 6 bits)

16. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 16 SSA-UWB pulse wavelet realization using Soft-Spectrum Adaptation UWB test-bed with 4-bit quantization (128 and 256 samples per pulse) SSA-UWB pulse generation (Test-bed, 128 samples, 4bit) SSA-UWB pulse generation (Test-bed, 256 samples, 4bit)

17. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 17 SSA-UWB pulse wavelet realization using Soft-Spectrum Adaptation UWB test-bed with 4-bit quantization (512 and 1024 samples per pulse) SSA-UWB pulse generation (Test-bed, 512 samples, 4bit) SSA-UWB pulse generation (Test-bed, 1024 samples, 4bit)

18. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 18 128 samples SSA-UWB pulse wavelet realization using Soft-Spectrum Adaptation UWB test-bed with 4-bit quantization (128 samples per pulse) Spectrum characteristics of SSA-UWB optimal pulse (Test-bed, 128 samples, 4bit) Spectrum characteristics of SSA-UWB optimal pulse (Matlab simulation, 128 samples, no quantization)

19. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 19 256 samples SSA-UWB pulse wavelet realization using Soft-Spectrum Adaptation UWB test-bed with 4-bit quantization (256 samples per pulse) Spectrum characteristics of SSA-UWB optimal pulse (Test-bed, 256 samples, 4bit) Spectrum characteristics of SSA-UWB optimal pulse (Matlab simulation, 256 samples, no quantization)

20. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 20 512 samples SSA-UWB pulse wavelet realization using Soft-Spectrum Adaptation UWB test-bed with 4-bit quantization (512 samples per pulse) Spectrum characteristics of SSA-UWB optimal pulse (Test-bed, 512 samples, 4bit) Spectrum characteristics of SSA-UWB optimal pulse (Matlab simulation, 512 samples, no quantization)

21. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 21 1/8 sample 1024 samples SSA-UWB pulse wavelet realization using Soft-Spectrum Adaptation UWB test-bed with 4-bit quantization (1024 samples per pulse) Spectrum characteristics of SSA-UWB optimal pulse (Test-bed, 1024 samples, 4bit) Spectrum characteristics of SSA-UWB optimal pulse (Matlab simulation, 1024 samples, no quantization)

22. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 22 64 samples SSA-UWB pulse wavelet realization using Soft-Spectrum Adaptation UWB test-bed with 4-bit quantization (64 samples per pulse) 64 samples Spectrum characteristics of SSA-UWB optimal pulse (Test-bed, 64 samples, 4bit) SSA-UWB pulse generation (Test-bed, 64 samples, 4bit)

23. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 23 3. Effects of two kinds of Ultra Wideband antennas on implementation issues of SSA-UWB pulse wavelets (3.1) T-type antenna (3.2) K-type antenna (3.3) Pre-equalization for SSA-UWB pulse shape calibration

24. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 24 3.1 T-type UWB antenna designed in CRL & CRL-UWB Consortium Frequency (samples) 050100150200250300350400450 -45 -40 -35 -30 -25 -20 -15 -10 -5 0 Transfer function (S11) characteristics of T-type antenna Return Loss (dB) 2.32GHz3.695GHz5.070GHz6.44GHz7.82GHz9.195GHz10.57GHz11.945GHz Measurement setup for T-type antenna characteristics in CRL (Frequency domain, transfer function, S11, S21, etc.) Measured transfer function of T-type antenna ( S11)

25. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 25 050100150200250300350400450 -30 -25 -20 -15 -10 -5 0 Phase feature of T-type antenna transfer function (S11) Frequency (samples) Relative phase (degree) T-type UWB antenna designed in CRL & CRL-UWB Consortium (Cont.)

26. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 26 Effects of T-type Ultra Wideband antenna on SSA-UWB pulse shape 020406080100120140 -1.5 -0.5 0 0.5 1 1.5 2 SSA-UWB optimized pulse wavelet generation Time (128 samples=3.6 ns) Relative amplitude 0.0ns0.56ns1.125ns1.6875ns2.25ns2.8125ns3.375ns 050100150200250300 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 Spectrum characteristics of optimal SSA-UWB pulse wavelet Frequency (1 sample=69.4MHz) Relative amplitude (dB) (3.12GHz)(5.8GHz) 0.0GHz3.47GHz6.94GHz10.41GHz13.88GHz17.35GHz

27. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 27 050100150200250300 -90 -80 -70 -60 -50 -40 -30 -20 -10 Spectrum characteristics of reflected SSA-UWB pulse (T-type antenna) Frequency (samples) Relative amplitude (dB) Effects of T-type Ultra Wideband antenna on SSA-UWB pulse shape (Cont.) 050100150200250300 -1.5 -0.5 0 0.5 1 1.5 2 Reflected SSA-UWB pulse waveform by T-type antenna Time (samples) Relative amplitude Reflected pulse Generated pulse

28. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 28 3.2 K-type UWB antenna designed in CRL & CRL-UWB Consortium 020406080100120140160180 -160 -140 -120 -100 -80 -60 -40 -20 0 Phase feature of K-type antenna transfer function (S11) Frequency (samples) Relative phase (degree) 020406080100120140160180 -25 -20 -15 -10 -5 0 Transfer function (S11) characteristics of K-type antenna Frequency (samples) Return Loss (dB) 3.0GHz3.9GHz4.9GHz5.9GHz6.9GHz7.9GHz8.9GHz9.9GHz10.9GHz

29. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 29 K-type UWB antenna designed in CRL & CRL-UWB Consortium (Cont.) 020406080100120140160180 -0.08 -0.06 -0.04 -0.02 0 0.02 0.04 0.06 0.08 Impulse response of K-type antenna transfer function (S11) Time (samples) Relative amplitude

30. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 30 050100150200250300 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 Spectrum characteristics of reflected SSA-UWB pulse waveform (K-type antenna) Frequency (samples) Relative amplitude (dB) Effects of K-type Ultra Wideband antenna on SSA-UWB pulse shape 050100150200250300 -1.5 -0.5 0 0.5 1 1.5 2 Reflected SSA-UWB pulse waveform by K-type antenna Time (samples) Relative amplitude Reflected pulse Generated pulse

31. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 31 050100150200250300 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 -10 Spectrum characteristics of reflected SSA-UWB pulse waveforms by T- & K-type antenna Frequency (samples) Relative amplitude (dB) K-type antenna T-type antenna Comparisons of effects of T- & K-type Ultra Wideband antennas on SSA-UWB pulse shape

32. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 32 050100150200250300 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 Spectrum characteristics of reflected & required SSA-UWB pulse waveforms by T- & K-type antenna Frequency (samples) Relative amplitude (dB) K-type antenna T-type antenna Comparisons of effects of T- & K-type Ultra Wideband antennas on SSA-UWB pulse shape (Cont.) Required spectrum

33. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 33 3.3 Pre-equalization for SSA-UWB pulse shape calibration Pulse shape in both time and frequency domain is strongly affected by filter, antenna and channel characteristics. X post =Y C -1 A r -1 F r -1 X pre =X F t -1 A t -1 FtFt AtAt C ArAr FrFr Y filter antenna channel antenna filter X pre FtFt AtAt C ArAr FrFr Y filter X antenna channel antenna filter X Post-equalization X post X SSA pulse generator With Pre-equalization

34. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 34 050100150200250300 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 Spectrum of Pre-equalized SSA-UWB pulse wavelet on the air (T-type antenna) Frequency (samples) Relative amplitude (dB) Pre-equalization for SSA-UWB pulse wavelet corresponding to T-type antenna 050100150 -1.5 -0.5 0 0.5 1 1.5 2 Pre-equalized SSA-UWB pulse for T-type antenna Time (samples) Relative amplitude Pre-equalized pulse Required pulse

35. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 35 050100150200250300 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 Spectrum of Pre-equalized SSA-UWB pulse wavelet on the air (K-type antenna) Frequency (samples) Relative amplitude (dB) Pre-equalization for SSA-UWB pulse wavelet corresponding to K-type antenna 050100150200250300 -1.5 -0.5 0 0.5 1 1.5 2 Pre-equalized SSA-UWB pulse (K-type antenna) Time (samples) Relative amplitude Pre-equalized pulse Required pulse

36. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 36 Pre-equalization for SSA-UWB pulse wavelet realizing spectrum matching 050100150200250300 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 Spectrum characteristics of SSA-UWB pulse wavelet on-the-air (No Pre-equalization) Frequency (samples) Relative amplitude (dB) Frequency (samples) 050100150200250300 -90 -80 -70 -60 -50 -40 -30 -20 -10 0 Spectrum of Pre-equalized & required SSA-UWB pulse wavelets on-the-air (T- & K-type antenna) Relative amplitude (dB) K-type antenna T-type antenna Required pulse

37. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 37 4. Conclusion remarks  We has tested the effects of quantization bits and sampling scheme on the implementation issues of SSA-UWB pulse wavelets.  Test-bed results are encouraging  We also have investigated the effects of two specific Ultra Wideband antennas on the implementation issues of SSA-UWB pulse wavelets  CRL’s T-type antenna  CRL’s K-type antenna  Measurement and simulation results are encouraging as well  Scalable and adaptive performance improvement can be further expected by utilizing various improved UWB devices.

38. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 38 5. Backup materials

39. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 39 020406080100120140 -0.5 0 0.5 1 1.5 SSA-UWB optimized pulse wavelet generation Time (samples) Relative amplitude 050100150200250300 -90 -80 -70 -60 -50 -40 -30 -20 -10 -0 Spectrum characteristics of SSA-UWB optimal pulse wavelet Frequency (samples) Relative amplitude (dB) SSA-UWB pulse wavelet with adaptive spectral notches achieving coexistence, flexibility and efficient power transmission

40. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 40 050100150200250300 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 Spectrum characteristics of reflected SSA-UWB pulse waveform (T-type antenna) Frequency (samples) Relative amplitude (dB)

41. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 41 020406080100120140 -1.5 -0.5 0 0.5 1 1.5 Reflected SSA-UWB pulse by T-type antenna Time (samples) Relative amplitude

42. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 42 050100150200250300 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 Spectrum characteristics of reflected SSA-UWB pulse waveform (K-type antenna) Frequency (samples) Relative amplitude (dB)

43. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 43 050100150200250300 -1.5 -0.5 0 0.5 1 1.5 Reflected SSA-UWB pulse waveform by K-type antenna Time (samples) Relative amplitude

44. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 44 050100150200250300 -110 -100 -90 -80 -70 -60 -50 -40 -30 -20 Spectrum characteristics of reflected SSA-UWB pulse waveform Frequency (samples) Relative amplitude (dB) K-type antenna T-type antenna

45. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 45 050100150200250300 -90 -80 -70 -60 -50 -40 -30 -20 -10 Spectrum characteristics of reflected & required SSA-UWB pulse waveforms Frequency (samples) Relative amplitude (dB) K-type antenna T-type antenna

46. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 46 050100150200250300 -200 -180 -160 -140 -120 -100 -80 -60 -40 -20 0 Spectrum characteristics of SSA-UWB optimal pulse wavelet Frequency (samples) Relative amplitude (dB) Time (samples) 020406080100120140 -0.5 0 0.5 1 1.5 SSA-UWB optimized pulse wavelet generation Relative amplitude SSA-UWB pulse wavelet with adaptive spectral notches achieving coexistence, flexibility and efficient power transmission (Cont.)

47. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 47 050100150200250300 -140 -120 -100 -80 -60 -40 -20 Spectrum characteristics of reflected SSA-UWB pulse waveform (T-type antenna) Frequency (samples) Relative amplitude (dB)

48. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 48 020406080100120140 -1.5 -0.5 0 0.5 1 1.5 Reflected SSA-UWB pulse waveform by T-type antenna Time (samples) Relative amplitude

49. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 49 050100150200250300 -250 -200 -150 -100 -50 0 Spectrum characteristics of reflected SSA-UWB pulse waveform (K-type antenna) Frequency (samples) Relative amplitude (dB)

50. doc.: IEEE 802. 15-04-0039-00-003a Submission January, 2004 CRL & CRL-UWB ConsortiumSlide 50 050100150200250300 -1.5 -0.5 0 0.5 1 1.5 Reflected SSA-UWB pulse waveform by K-type antenna Time (samples) Relative amplitude