VIP HELP NEEDED...UWB Pulse generating circuit schematics

[meissa]

uwb circuit

Does anyone have a reference to circuit schematics for pulse generating circuits

 

[Vamsi Mocherla]

osee.pdf

Exactly what kind of pulses do you require? You can use a 555 timer/ astable multivibrator for pulse generation for low speed pulses.

 

[artem]

You can search for originally LLNL made MIR info . There should be few McEwan's patents on the subject with basics.

 

[artem]

dont know it is operational or not , but you can try and report results
**broken link removed**

 

[rfsystem]

Re: VIP HELP NEEDED...UWB Pulse generating circuit schemati

As I understand the critical point for TX UWB signal is the spectral mask. So simple pulses are not enough.

The basic pulse is in most cases a +1 for some 100ps and a following -1 for the same period. It is generate by a technology/temperature/voltage stable delay generator and logic circuits. Then the pulse is filtered by an bandpass filter which is special surpression in the GPS frequency range.

 

[artem]

This design is changed clone of :
https://www.freepatentsonline.com/s...spat=on&date_range=all&stemming=on&sort=chron

Are you about frequency usage regulation compliance ?

 

[rfsystem]

Re: VIP HELP NEEDED...UWB Pulse generating circuit schemati

Sorry your search link is incomplete or truncated. It gives 101 scores.

Did you mention a specific one? Or is that a general hint to search for yourself?

 

[artem]

Sorry for link .
This is search for McEwan LLNL MIR patents the Stadero's radar is based on . You can go and search for "McEwan" in author field on freepatents site to get all his patents on issue . Patents mostly concern to MIR design modifications .

ALternative links (informative):
http://www.llnl.gov/IPandC/technology/profile/sensor/MicropowerImpulseRadar/index.php
http://www.getradar.com/
**broken link removed**

I interrested in his sensor for liquid level (tdr based) and want also play with small uwb radar.