Optimum microstrip interconnects

Abstract
A simple, automated assembly technique that solves the high VSWR (voltage standing wave ratio) and insertion loss problems associated with variable wire inductance in microwave assemblies has been developed. The theory, design, and fabrication of optimum microstrip interconnects from 2 to 20 GHz are discussed. Microstrip interconnects, modeled and measured, are shown to achieve VSWRs of 1:2:1 through 20 GHz, even when several interconnects are cascaded. The technique is tolerant of gap variations between substrates and a misalignment of the microstrip conductors.<>

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