The bandwidth of the DRA is increased by using coplanar-waveguide inductive slot, and the size of the DRA is reduced by loading a L metallic strip on the DR.
其中，介质谐振天线通过采用共面波导馈电来提高带宽，通过加载倒L形金属片来减小体积，从而实现了宽频带和小型化的目的；
The bandwidth of the DRA is increased by using coplanar-waveguide inductive slot, and the size of the DRA is reduced by loading a L metallic strip on the DR.
其中，介质谐振天线通过采用共面波导馈电来提高带宽，通过加载倒L形金属片来减小体积，从而实现了宽频带和小型化的目的；
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