The theoretical modal analysis showed that there was a dense high-ordermode section and the high-order modes behaved the local characteristics in the frame structures.
理论模态分析表明框架结构存在模态密集区且高阶模态具有局部特征。
2
One is composed of two high-ordermode microstrip antennas and a simple four-arm spiral antenna, which could satisfy with different radiation demands of transmitter and receiver.
一种是采用两个高次模天线分别实现中频和高频性能要求，而采用简单的四臂螺旋天线实现低频要求。
3
This article gives the elementary analysis on why does high-ordermode resonance arise and how to control it, and proposes several practical methods controlling high-ordermode excitation.