Impedance matching of a loaded microstrip transmission line using parasitic elements

Impedance matching of a loaded microstrip transmission late is performed by using only parasitic elements. By the term "parasitic" matching element ire mean that there is no physical connection between the conductors of the matching subsystem and the conductors of the main circuit. We construct a so-called lambda/4 parasitic transformer by adding a dielectric brick above the microstrip line, and another conducting strip above the brick. It is shown that a very good matching performance is achieved with the lambda/4 parasitic transformer. (c) 2006 Wiley Periodicals, Inc.