How can we shield an LNA ?

[elec350]

hello
How we can shield an LNA well?

 

[Azulykit]

Re: Shielding [hlp]

put it in a sealed box and use coax input and outputs if you can. Filter bias and power lines

 

[elec350]

Re: Shielding [hlp]

Hello Azulykit
you :

use coax input and outputs if you can

what kind of coax is better? rigid?

 

[khouly]

Shielding [hlp]

it will depend on ur applicatin , and the environment which the LNA will be used in

khouly

 

[Azulykit]

Re: Shielding [hlp]

Define "better".

Rigid shields have higher shielding than braided versions. Rigid shields do not bend as easily or often as a braid without damage. The list goes on.

 

[ashvi]

Re: Shielding [hlp]

hello
How we can shield an LNA well?

place the LNA in a metal box (un painted) and ground the box at all possible places.

Added after 9 minutes:

hello
How we can shield an LNA well?

refer keith armstrong pages on shielding/EMC over net...

 

[elec350]

Re: Shielding [hlp]

hello
ashvi wrote:

refer keith armstrong pages on shielding/EMC over net...

please write the link of it.

 

[Abhishekabs]

Re: Shielding [hlp]

Hi see the photos above.
These are some examples of LNA which are self explanatory.
If you have any doubts still , ask me,
Abhishekabs

 

[Abhishekabs]

Re: Shielding [hlp]

another image