RF Band-Pass Filter for GSM at 1.8GHz

[gen3sis]

band pass filter 1.8 ghz

Hi,what is the general requirements of the following of an rf band-pass filter at 1.8GHz and why, and where can i get the information from? Thanks..

i) Insertion loss
ii) -3db roll-off frequency
iii) 2fc attenuation frequency
iv) Return loss

 

[FvM]

Your repeated question didn't get much clearer by adding the word GSM.

We can't know, what's the purpose of your filter, thus we can't suggest a specification.

As an additional remark, your required by the board rules to supplement
your previous posting instead of sending a new one.

 

[gen3sis]

Didn't know that..new to this..btw,the filter is to match with an LNA at 1.8GHz of an rf design.

 

[gen3sis]

hi,what is the requirements from the federal communications comission (fcc) for a gsm 1.8GHz BP filter design?thanks