citizen
Member level 5
return loss is not good
hi to all,
i have designd a combline round rod filter (3.7-3.8ghz)but the return loss is not good in the pass band......
is tuning of the tap points may change return loss?
or any other solution for this ???????????
here i got the band width exactly double to my designd one .....
means when i designed for 100 mhz i got 200mhz bandwidth
and when i designd for 90 mhz i got 180 mhz band width
so any suggession to improve return loss and reduce my band width
( im thinking that by scaling means designing for 50 mhz will get 100mhz band width is it works for this filter)
i tried the some tips which are suggested here in this forum as
increse spacing and order but im not getting my required filter............
any one clarify these doubts plzzzzzzzzzzzzzzzzzz..............
thank you one and all
hi to all,
i have designd a combline round rod filter (3.7-3.8ghz)but the return loss is not good in the pass band......
is tuning of the tap points may change return loss?
or any other solution for this ???????????
here i got the band width exactly double to my designd one .....
means when i designed for 100 mhz i got 200mhz bandwidth
and when i designd for 90 mhz i got 180 mhz band width
so any suggession to improve return loss and reduce my band width
( im thinking that by scaling means designing for 50 mhz will get 100mhz band width is it works for this filter)
i tried the some tips which are suggested here in this forum as
increse spacing and order but im not getting my required filter............
any one clarify these doubts plzzzzzzzzzzzzzzzzzz..............
thank you one and all