Metal core printed circuit board as substrat for high frequency and microwave circuits

摘要

The design for a printed circuit board is specified which is specifically suitable as a substrate for RF and microwave circuits. An even layer of homogeneous vitreous enamel (3) is applied to a metal core (1) consisting of a highly conductive material or coated with a highly conductive material (2). Copper conductor tracks (4) are deposited thereon non-electrically. Attenuation values and resonance qualities can be demonstrated for the RF and microwave circuits placed on such a substrate, which are at least equivalent to the values produced by circuits constructed on present-day conventional substrates (oxide ceramic, polytetrafluoroethylene). IMAGE