IMPEDANCE MATCHING STRIPLINE TRANSITION FOR MICROWAVE SIGNALS

摘要

An impedance matching stripline transition for microwave signals which are conducted from a stripline circuit on one laminate (2) to another laminate (4) through a number of intermediate laminates (3). The connection between an incoming stripline circuit (21) on one laminate (2) to the outgoing stripline circuit (41) on the other laminate is performed as a short coaxial line. The outer conductor of the coaxial line is formed by a number of through-plated holes (12, 13, 23, 33, 43) in horseshoe form around a central conductor of through-plated holes (24,34). The outer conductor is connected with the earth plane (31, 11, 45) of the laminates. They serve simultaneously as suppressor of not desired modes in the microwave signals which is supplied to the transition via the conductor (21).