How to lower microwave semiconductor flicker noise?

Status
Not open for further replies.
M

mr_ghz

Full Member level 5
Joined
Apr 1, 2002
Messages
289
Helped
7
Reputation
14
Reaction score
5
Trophy points
1,298
Activity points
3,551
Flicker noise

Hi all

Has anyone experience with microwave-semiconductor flicker noise?
How can it be lowered? Has anyone values for the noise density of the following components?
- BAT15 (schottky diode Infineon)
- HSMS-8xxx (schottky diode Agilent)
- NE3210S01 (GaAs FET CEL/NEC)

Thanks!
 

Re: Flicker noise

I have ask a question about flicker noise b4. and flatulent gave some explaination and how to reduce it. you may seach flicker + 1/f . I dont know how to post that link here, sorry.
 

Re: Flicker noise

Here is the previous discussion. **broken link removed**
 

Re: Flicker noise

Uups, I searched long time with google but forgot looking in older elektroda discussions ... sorry.
But again: I did not find a value for the flicker noise in a datasheet. Can it be calculated from other parameters? Are there 'experience values' for devices?

Thanks
 

If you searched whit Google, pheraphs you found tons of data about 1/f and or flicker noise.
At present knowing "1/f" don't follow any mathematical law so cannot be predicted.
"1/f" is a generallized name of a complex phenomena and the describing law is 1/(f^n), n increase as the freq. tend to 0 Hz.
Pratical tips:
at freq as low as 1 Hz or less, the major cause of 1/f is the enviroment drift. check the supply voltage, the temperature should be thermostated etc.
Don't hope to find info on all data sheets. But few components are advised as "low 1/f noise" . On data sheets look also for the combiantion of "Audio" and "Ultra low noise".
Good Luck
 

Status
Not open for further replies.

Similar threads

Menu
Log in
Register
Cookies are required to use this site. You must accept them to continue using the site. Learn more…