The studies indicate that UWB and FREMP is easier coupling into cavity through slots than that of NEMP, and UWB and FREMP can lead to resonance in the cavity and the slot.

• 研究表明：对于较小尺寸的目标腔体，在孔缝尺寸也较小的情况下，FREMP和UWB相对于NEMP更容易通过腔体上的孔缝耦合进入目标腔体，而且更容易引起孔腔共振。