Timing of ultra wideband pulse generator

1. An apparatus for producing timing signals for an ultra wideband pulse generator using a plurality of timing signals as input, comprising: a frequency multiplier for generating a converted signal having a multiple of a pulse frequency of a reference clock signal inputted into the frequency multiplier, wherein the frequency multiplier comprises a first delay-locked loop for generating a plurality delayed versions of the reference clock signal, wherein the apparatus further comprises a feedback controlled delay circuitry comprising a second delay-locked loop connected to the frequency multiplier, for generating at least two versions of the converted signal, the at least two versions having a predefined delay with respect to each other, the at least two versions being used as timing signals for the ultra wideband pulse generator.

2. The apparatus of claim 1 , wherein the frequency multiplier further comprises: an edge combiner connected to the first delay-locked loop, for generating the converted signal from the plurality of the delayed versions of the reference clock signal.

3. The apparatus of claim 1 , wherein the pulse frequency of the reference clock signal is less than 100 megahertz; and

the frequency multiplier is configured to generate a converted signal having a pulse frequency of more than 400 MHz.

4. The apparatus of claim 1 , wherein the feedback controlled delay circuitry is configured to generate the at least two versions of the converted signal, the two versions having a predefined delay of less than 250 picoseconds with respect to each other.

5. The apparatus of claim 1 , wherein the feedback controlled delay circuitry is configured to generate a delayed component for each version of the converted signal, the delayed component being used as a timing signal for the ultra wideband pulse generator.

6. The apparatus of claim 1 , wherein the reference clock signal is a crystal oscillator clock signal.

7. The apparatus of claim 1 , wherein the predefined delay between the at least two versions of the converted signal defines a pulse width of an ultra wideband pulse.

8. A method of producing timing signals for an ultra wideband pulse generator using a plurality of timing signals as input, the method comprising: inputting a reference clock signal; generating, using a first delay-locked loop, a plurality of delayed versions of the reference clock signal; generating a converted signal from the reference clock signal, the converted signal having a multiple of a pulse frequency of the reference clock signal, including generating at least two versions of the converted signal by using a feedback control comprising a second delay-locked loop, the at least two versions having a predefined delay with respect to each other; and using the at least two versions of the converted signal as timing signals for the ultra wideband pulse generator.

9. The method of claim 8 , further comprising: generating the converted signal from the plurality of the delayed versions of the reference clock signal.

10. The method of claim 8 , further comprising inputting the reference clock signal having a pulse frequency less than 100 megahertz; and

generating a converted signal having a pulse frequency of more than 400 MHz.

11. The method of claim 8 , further comprising generating the at least two versions of the converted signal, the two versions having a predefined delay of less than 250 picoseconds with respect to each other.

12. The method of claim 8 , further comprising generating a delayed component for each version of the converted signal; and

using the delayed component as a timing signal for the ultra wideband pulse generator.

13. The method of claim 8 , further comprising inputting a crystal oscillator clock signal as the reference clock signal.

14. The method of claim 8 , further comprising controlling a pulse width of an ultra wideband pulse by affecting the predefined delay between the at least two versions of the converted signal.