Microwave printed circuitry for high performance and reliability

The recent availability of a copper-clad polyethylene dielectric material and the refinement of processing techniques has made possible the design and fabrication of improved, high-quality, reliable microwave printed circuits. This has been demonstrated by data and experience gained in the manufacture and use of such circuits in the TELSTAR satellite and in a digital phase shift line application. Many microwave circuits, difficult to construct in any other way, are now feasible at reasonable cost.