Читать книгу Handbook of Microwave Component Measurements - Joel P. Dunsmore - Страница 52

Transmission lines provide the interconnection between components, typically in a microcircuit or a PC board. These are distinguished from a measurement perspective because they are typically much shorter, often not shielded, and the interface to them is not easy to make and sometimes not well defined. While there have been whole books written on the subject, a short review of some common transmission line structures and their attributes are described next, with a focus on attributes important to measurement. Transmission lines are characterized by the same three parameters: impedance, effective dielectric constant, and loss.