A conclusion can thus be gained that NRD-guide can be used as an UWB antenna and a radiating element of antenna arrays due to small side leakage.

• 先从频域的角度研究了NRD波导用作超宽带天线时相关参数选择的依据，然后用FDTD方法研究了NRD波导的传播特性以及辐射特性，并与平行板天线的辐射特性比较，得出该天线的突出优点是具有较小的侧向泄漏。