disadvantages of IMPATT and Gunn diode

[Aneel4444]

Can anyone tell me that what are the disadvantages of impact and the gunn diode please ??

 

[(*steve*)]

I'm pretty sure that if you hit them with a hammer they will break.

Or do you mean impact ionisation, or possibly IMPATT diodes?

 

[Aneel4444]

I'm pretty sure that if you hit them with a hammer they will break.

Or do you mean impact ionisation, or possibly IMPATT diodes?

sorry it was typing mistake i mean to say disadvantages of impatt and gunn diode

 

[davenn]

main disadvantages of IMPATT diodes are their hi phase noise caused by the avalanche effect on which they operate, and they need hi voltage usually 70V +
They are higher power generators than Gunn diodes tho

Gunn Diodes are lower voltage operation usually less than 12V DC. Usually always less than 1W output typically 10 to 150mW output for a given diode.
becayse they operate differently to the IMPATT diode they generate much lower phase noise

Dave