Posted in dielectric constant relative permittivity transmission lines

More dielectric constants

Since these are so hard to find, I’m going to record all findings. According to a 1961 document called Plastic-Film-Dielectric…

Posted in dielectric constant relative permittivity transmission lines

More on transmission lines

PTFE has a more constant (!) dielectric constant over a reasonable frequency range (not that the 4 ohms delta of…

Posted in dielectric constant relative permittivity transmission lines

Transmission line calculation tool

Since the steps were too much, this excel file was created. In the spreadsheet, the green values can be entered,…

Posted in dielectric constant relative permittivity transmission lines

Twisted pair transmission line

For constructing transmission lines, coax is useful because it is available in 50 and 75 ohms. For transmission line transformers,…