General Relations Among Transmission Line Parameters

[file: general.mcd]

Conversion formulas included in this spreadsheet:

• Inductance and capacitance to impedance                    Z0()

• Inductance and capacitance to propagation delay          PDLY1()

• Effective permittivity to propagation delay                    PDLY2()

• Impedance and propagation delay to capacitance         CPI()

• Impedance and propagation delay to inductance           LPI()

Variables used:

• lpi Inductance per inch (H)

• cpi Capacitance per inch (F)

• pdly Propagation delay (s/in.)

• z0 Line impedance (W)

• eeff Effective relative permittivity

Given inductance per inch and capacitance per inch, find the characteristic impedance in ohms:

Given inductance per inch and capacitance per inch, find the propagation delay per inch:

Given the effective electric permittivity of the surrounding medium, find the propagation delay per inch:

Given impedance and propagation delay, find the capacitance per inch:

Given impedance and propagation delay, find the inductance per inch:

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