RESONANT FREQUENCIES OF A MICROWAVE PACKAGE WITH VERTICAL DIAPHRAGMS ATTACHED TO THE TOP COVER

Abstract

The resonant frequencies of the modes in a cabineted microwave package are investigated by the mode-matching method. The upper region of the package is partitioned into several cabinets using vertical diaphragms of a same depth and of negligible thickness. Numerical results are shown to agree with those of the measurement. The change of the resonant frequencies with the diaphragm depth is presented and explained. It is found that the resonance-free frequency bands can be broadened by suitably designing the positions and the depth of the diaphragms. (C) 1995 John Wiley & Sons, Inc.