A tool used in radio frequency engineering to determine the characteristic impedance of a coaxial cable. This calculation is essential for ensuring efficient power transfer and minimizing signal reflections within transmission systems. The impedance value is dependent on the physical dimensions of the cable, specifically the inner conductor diameter, the outer conductor diameter, and the dielectric constant of the insulating material between them. A typical result is expressed in ohms ().
Accurate impedance matching is critical in many applications. A mismatch between the source, transmission line, and load impedances leads to signal reflections, which can result in power loss, signal distortion, and potentially damage to equipment. The ability to predict and control the electrical characteristics of a coaxial cable has been a cornerstone of high-frequency circuit design since the development of these transmission lines. Early applications focused on radio communications, but the principles remain relevant in modern applications such as television broadcasting, data transmission, and microwave systems.
