UWB signal generation ???

[qqpei]

I am trying to find out a on-chip solution for UWB signal generation. Both impulse and Gaussian Monocycle pulse are considered.

I did some research and found analog approach is hard. Most companies use high speed digital circuits to generate impulse.

Say if I need 1 ns wide impuse, less than 50 ps time jittering, what kind of IC process should be considered?

 

[flyhigh]

I don't know much about on-chip signal generation but for the moment we are dealing with even shorter pulses generated with step recovery diode. It is in millimeter wave range, I don't know if this will help you.

flyhigh

 

[microstrip_line]

In the wideband traditional radar, the signal may be perform different waveform. But in UWB system , how to control the waveform?

 

[activewei]

you can consider using step recovery diode(SRD) to generate pulse with nanosecond pulse width with proper shaping circuitry, you can obtain subnanosecond pulse.

 

[DEM_MOBILE]

I would appreciate any references to publications detailing the step recovery diode(SRD) and pulse shaping circuitry techniques. I have been trying to locate these types of references for a while.

Thanks,

Darel

 

[Mac7978]

The attached file is a paper which uses Step recovery diode to generate sub-nanosecond gaussian and monocycle pulses.Hope can help u ...

 

[poloalex]

I recently research UWB pulse generation.You can use SRD and pulse shaping using RC filter.But its drawback is not be integrated.The attachment is about cmos/bicmos pulse generation circuit and based on 0.18 um process.