actra
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hello
what permittivity should i use to calculate the 50 matched line ?
permittivity (dk) max = 4.7 FR4 material
and permittivity @ 1.3 GHZ = 4.33 as n datasheet...
im workin in 1.3ghz band.....
FR4 1OZ copper 1/32 in thinckness
so using ultracad or any microstip calculator whats the permittivity should i use to measure the line width ????? first or second ?
thanks n advance
what permittivity should i use to calculate the 50 matched line ?
permittivity (dk) max = 4.7 FR4 material
and permittivity @ 1.3 GHZ = 4.33 as n datasheet...
im workin in 1.3ghz band.....
FR4 1OZ copper 1/32 in thinckness
so using ultracad or any microstip calculator whats the permittivity should i use to measure the line width ????? first or second ?
thanks n advance