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IEEE Transactions on Microwave Theory and Techniques
Volume 48 Number 4, April 2000

Table of Contents for this issue

Complete paper in PDF format

Tunable Microwave Coupler Buried in Low-Temperature Co-Fired Ceramic

Scott A. Wartenberg

Page 618.

Abstract:

This paper outlines a method of tuning a microwave broadside coupler buried in low-temperature co-fired ceramic. Etching a slot in the exposed ground plane tunes the characteristic impedance Z0 of a stripline coupler. An iterative method computes the correct dimensions of the slot. Applying the method salvages microwave circuits detuned due to manufacturing tolerances.

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