igortomiatti
Newbie level 1
Hello,
I'm designing a low pass chebyshev filter using stepped impedance.
I'm using the book 'Microstrip Filters for RF/Microwave Applications' as a reference.
I have difficulty understanding how low and high impedances are defined. The book uses Z0L = 93 ohms and Z0C = 24 ohms. I could not find an explanation for these values, I searched several articles but all uses an impedance between 20 and 120 ohms but does not explain how to calculate.
How can I get to this definition?
Thanks.
I'm designing a low pass chebyshev filter using stepped impedance.
I'm using the book 'Microstrip Filters for RF/Microwave Applications' as a reference.
I have difficulty understanding how low and high impedances are defined. The book uses Z0L = 93 ohms and Z0C = 24 ohms. I could not find an explanation for these values, I searched several articles but all uses an impedance between 20 and 120 ohms but does not explain how to calculate.
How can I get to this definition?
Thanks.