Ultra wideband receiver

• US 8,098,707 B2
• Filed: 01/31/2007
• Issued: 01/17/2012
• Est. Priority Date: 01/31/2006
• Status: Active Grant

• Current Assignee: Regents of The University of Minnesota (University of Minnesota)
• Original Assignee: Regents of The University of Minnesota (University of Minnesota)
• Inventors: Harjani, Ramesh, Jung, Byung-Hoo, Oh, Mi Kyung
• Primary Examiner(s): LUGO, DAVID B
• Application Number:
  US11/669,938
• Publication Number:
  US 20070242735A1
• Time in Patent Office: 1,812 Days
• Field of Search: 375/130, 375/138, 375/140, 375/147, 375/340
• US Class Current: 375/130
• CPC Class Codes: H04B 1/71637 Receiver aspects H04B1/7183 takes precedence

Abstract

An ultra-wideband (UWB) receiver utilizing an Xⁿ(n>1) device as a signal detector for short pulse(s), impulse(s) or ultra-wideband signal(s). The transmitted signal comes to antenna and passes through a band pass filter (BPF). The signal is fed into an Xⁿ device. The output signal from the Xⁿ device is fed into integration/dump block. The output from the integration/dump block is fed into decision block.

Claims

1. An ultra wideband receiver comprising:

an antenna;

a band pass filter coupled to the antenna to provide a filtered signal;

a Xⁿ or e^X block coupled to the filtered signal, wherein the Xⁿ block raises the filtered signal to an integer power (n) greater than one, and wherein the e^X block raises a constant (e) to a power, the power having a value determined by the filtered signal;

an integration and dump block coupled to the Xⁿ or e^X block, wherein the integration and dump block has an integration time less than or equal to half a time period assigned to each data symbol; and

a decision block coupled to the integration and dump block.

2. The ultra wideband receiver of claim 1, further comprising:

a transmit/receive (T/R) switch coupled to the antenna and the band pass filter.

3. The ultra wideband receiver of claim 1, further comprising:

an amplifier coupled to the band pass filter and the Xⁿ or e^X block.

4. The ultra wideband receiver of claim 1, further comprising:

a T/R switch coupled to the band pass filter and the Xⁿ or e^X block.

5. The ultra wideband receiver of claim 1, further comprising:

a T/R switch coupled to the band pass filter and an amplifier;

wherein the amplifier is coupled to the T/R switch and the Xⁿ or e^X block.

6. The ultra wideband receiver according to claim 1, wherein the band pass filter has a magnitude response close to a power spectrum density of an incoming signal.

7. The ultra wideband receiver according to claim 1, wherein the Xⁿ block comprises a multiplier that multiplies an input signal.

8. The ultra wideband receiver according to claim 1, wherein the Xⁿ block includes one or more multipliers.

9. An ultra wideband receiver comprising:

an antenna;

a band pass filter coupled to the antenna;

a rectifier or envelope detector coupled to the band pass filter to provide a rectified signal;

a Xⁿ or e^X block coupled to rectified signal, wherein the Xⁿ block raises the rectified signal to an integer power (n) greater than one, and wherein the e^X block raises a constant (e) to a power, the power having a value determined by the rectified signal;

an integration and dump block coupled to the Xⁿ or e^X block, wherein the integration and dump block has an integration time less than or equal to half a time period assigned to each data symbol; and

a decision block coupled to the integration and dump block.

10. The ultra wideband receiver of claim 9, further comprising:

a T/R switch coupled to the antenna and the band pass filter.

11. The ultra wideband receiver of claim 9, further comprising:

an amplifier coupled to the band pass filter and the rectifier or envelope detector.

12. The ultra wideband receiver of claim 9, further comprising:

a T/R switch coupled to the band pass filter and the rectifier or envelope detector.

13. The ultra wideband receiver of claim 9, further comprising:

a T/R switch coupled to the band pass filter and an amplifier;

wherein the amplifier is coupled to the T/R switch and the rectifier or envelope detector.

14. The ultra wideband receiver according to claim 9, wherein the band pass filter has a magnitude response close to the power spectrum density of incoming signal.

15. The ultra wideband receiver according to claim 9, wherein the Xⁿ block comprises a multiplier that multiplies an input signal.

16. The ultra wideband receiver according to claim 9, wherein the Xⁿ block comprises one or more multipliers.