System and method for a single stage tunable ultra-wideband...

Pulse or digital communications – Systems using alternating or pulsating current

Reexamination Certificate

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

C375S141000, C375S146000, C375S242000, C375S295000

Reexamination Certificate

active

07869526

ABSTRACT:
The present invention provides a single-stage tunable Ultra-Wideband (UWB) pulse generator, by creating and differentiating a variable edge rate signal. Edge rate variability is introduced by first applying a step recovery diode (SRD) to compress the edges of the source and then applying a simple RC network to adjust the edge rate. Next, the resulting signal is differentiated using microstrip transmission lines. The tunable generator resulting from this approach demonstrates a Gaussian and monocycle pulses with good symmetry and low distortion over the tunable range.

REFERENCES:
patent: 6700905 (2004-03-01), Karasawa et al.
R. Fontana, “Recent system applications of short-pulse ultra-wideband (UWB) Technology,” IEEE Trans. Microwave Theory Tech., 2004, pp. 2087-2104, vol. 52, No. 9.
Federal Communications Commission, Code of Federal Regulation, Title 47, ch. 1, part 15, “Radio Frequency Devices,” Sub-Part F, Ultra-Wideband, Sec. 503, 2003; pp. 767-768.
J. Taylor, Ultra-Widband Radar Technology, Boca Raton: CRC Press, 2001.
J. Han and C. Nguyen, “Ultra-Wideband electronically tunable Pulse Generators,” IEEE microwave and Wireless Components Letter, vol. 14, No. 3, Mar. 2004.
J.Han and C. Nguyen, “Microstrip Impulse Generators with tunable Pulse Duration for Ultra-Wideband Applications,” 2003 Asia Pacific Microwave conference, Seoul, Korea, Nov. 2003.
C Hsue, T. Cheng and H Chen, “A second-order microwave differentiator,” IEEE Microwave And Wireless Components Letter, vol. 13, No. 3, Mar. 2003.
Barrett, Terence W., “History of Ultra-wideband Radar &Communications: Pioneers and Innovators,” Proc. of Progress in electromagnetics Symp. 2000, Cambridge, MA, Jul. 2000.
Engler, Harold F., Technical Issues in ultra-Wideband Radar Systems,: 0-8493-4440-9, CRC Press, Inc. pp. 11-50, 1995.
Prather, William D., Baum, Carl E., Lehr, Jane M., et al. Ultra-wideband source and antenna research, IEEE Trans. on Plasma Science vol. 28, No. 5, Oct., pp. 1624-1630, 2000.
Agee, Forest J., Baum, Carl E., Prather, William D., et al., Ultra-wideband transmitter research, IEEE Trans. on Plasma Science, vol. 26, No. 3, p. 860-873, 1998.
“Pulse and waveform generation with step recovery diodes,” Agilent Technol., Palo Alto, CA, Applicat. Note 918, 1968.
J. Han and C. Nguyen, “A New Ultra-Wideband, Ultra-Short Monocycle Pulse Generator with Reduced Ringing,” IEEE Microwave and Wireless Comp. Letter, vol. 12, No. 6, Jun. 2002.
Hiroyuki Kida. “Measured and Simulated Results of Impulse Generator Using Step Recovery Diode.” IEICE Trans. Fundamentals, vol. E88-A, No. 9, Sep. 2005.
Anton, Howard. 1984. Calculus with analytic geometry. 2nd ed. New York: John Wiley & Sons.
Johnson, Howard and M. Graham. 1993. High Speed Digital Design: A Handbook of Black Magic. New Jersey: Prentice Hall.
Maxwell, E., Weller and Harrow J. (2006) Tunable UWB Pulse Generation Based on a Variable Edge-Rate Signal. In: Proceedings of the IEEE Asia Pacific Conference on Circuits and Systems, Dec. 4-7, Singapore: IEEE, (Accepted).
Maxwell, E., Weller, Harrow, J., Ng, A. (2006) Mathematical Reformation of the Ideal Gaussian for Ultra-Wideband Radar Systems. FEF Journal of Interdisciplinary Research (In-Review).
Maxwell, E., Weller, and Harrow, J. (2006). Tunable UWB Pulse Generation Based on a Variable Edge Rate Compression Approach. In: Student Paper Digest of the IEEE Sarnoff Symposium, Mar. 27-28, Princeton University: New Jersey: IEEE Sarnoff Symposium, pp. 13-15.
Maxwell, E., Weller and Harrow, J. (2006). Ultra-Wideband Radar for Enhanced Noninvasive Cancer Diagnostics. In: Proceedings of the 2nd Annual USF Interdisciplinary Graduate Research Symposium, Apr. 5, University of South Florida, Tampa: USF, pp. 52-54.
Maxwell, E., Weller and Harrow, J. (2006). A Variable Edge-Rate Compression Approach to Tunable Ultra-Wideband Pulse Generation. In: Proceedings of the 36th European Radar Conference, Sep. 13-15, Manchester: European Microwave Association, pp. 198-201.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

System and method for a single stage tunable ultra-wideband... does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with System and method for a single stage tunable ultra-wideband..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and System and method for a single stage tunable ultra-wideband... will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-2719869

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.