Abstract
This study presents a means to probe the electric-field distribution in a microstrip resonator using the existing power/ground pins. The strength of the electric-field could be correlated with the reflection coefficient. Physical mechanism for the position-depended reflection effect is interpreted from the perspective of probe coupling. An application of this method is demonstrated through three phases: determining the maximum field of a microstrip resonator, shaping the geometry at the field bulk, and detuning the resonant frequency of a power distribution network. The results reveal that this approach can be employed to achieve a resonance-free operating environment. © 2005 Springer Science+Business Media, Inc.