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I want to make oscillator range from 500MHZ to 2GHZ?help me!

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bt87

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500mhz oscillator

I want to make oscillator range from 500MHZ to 2GHZ? which oscillator you suggest me???
Colpitts,Clapp or Hartley
and why you suggest this???
please tell me i need to know about it??
 

mwmmboy

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2ghz+oscillator

It is very difficult to realize an oscillator with 1.5 GHz bandwidth.
Colpitts or simular can be a good choiche, a common base bjt with the resonator in base...
 

bt87

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Re: I want to make oscillator range from 500MHZ to 2GHZ?help

mwmmboy said:
It is very difficult to realize an oscillator with 1.5 GHz bandwidth.
Colpitts or simular can be a good choiche, a common base bjt with the resonator in base...

can i do this with cascaded circuit??
like

o/p of 1st oscillator in i/p of second oscillator?
 

vfone

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Re: I want to make oscillator range from 500MHZ to 2GHZ?help

This is a Colpitts VCO example
 

    bt87

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BigBoss

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I guess the differential VCO may be a good choice.But due to some restrictions like phase noise,temperature effects,pulling etc. this oscillator using with dicrete components can be a little bit sensitive for practical purposes..
But it's possible..
 

bt87

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any VCO for range of
925-960 MHZ
 

maheshkuruganti

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Try this its a 860Mhz - 950Mhz OSC with Integrated Tank Circuit. Its the MAXIM 2623

**broken link removed**

Added after 3 minutes:

Also Even I tried to do that Wideband VCO and from my experience I can tell you the best way is to take two Wideband VCOs and put them through a Mixer and filter the output. Else If you would rather have lesser work you could get a Mini Circuits Designer Kit KPOS1+ which has low phase noise Osc from 25Mhz to 1Ghz, they do have higher frequencies also like the 2GHz range.But mind you it is 13 VCOs
 

mvs sarma

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