tenderne
Member level 2
importance of length in trasnmission line
Hi All,
I got some confusion about the transimission line,
(1) what is the difference/relationship between 'relative permittivity' and 'effective permittivity'?
(2) is 'permittivity' same as 'dielectric constant'?
(3) what is 'geometry length' and 'electrical length'?
(4) suppose I have 'relative permittivity' and 'geometry length', how to calculate the [Y] matrix of transmission line?
(5) if I have only 'electrical length', then how to get [Y] matrix?
I tried to get some information from RF design books, but nowhere can find any accurate description. I am even more confused by the 'lossy' and 'lossless', 2-port and 4-port representation of transmission line.
Kindly give me some help or just some good reference books. Many thanks in advance.
best regards,
tenderne
Hi All,
I got some confusion about the transimission line,
(1) what is the difference/relationship between 'relative permittivity' and 'effective permittivity'?
(2) is 'permittivity' same as 'dielectric constant'?
(3) what is 'geometry length' and 'electrical length'?
(4) suppose I have 'relative permittivity' and 'geometry length', how to calculate the [Y] matrix of transmission line?
(5) if I have only 'electrical length', then how to get [Y] matrix?
I tried to get some information from RF design books, but nowhere can find any accurate description. I am even more confused by the 'lossy' and 'lossless', 2-port and 4-port representation of transmission line.
Kindly give me some help or just some good reference books. Many thanks in advance.
best regards,
tenderne