The designing of an antenna with a wideband harmonic suppression will lead to enhance the overall antenna performance efficiency as well as neglecting electromagnetic noises. A “defective ground superimposing” or a Y-slot construct confederated with a ring hopefully meets an effective approach that is exploited in removing high level of harmonics in the design process. A “2.4 GHz” rectangular U-slot microstrip patch antenna with an active antenna radiators and harmonic suppression grid has been presented. The paper focuses on the geometrical of active integration antennas to achieve efficient filtering and easy attenuation of unwanted harmonics. Further, an embedded empirical antenna with a high-order harmonic suppression has been suggested. This is followed by a “complementary opening recoiled construct cell”. The proposed approach was developed to control the antenna harmonics at center frequency of "\(2.4 \;{\text{GHz}}\)." The simulation sketches show that the reflection coefficient of multiple harmonics had an effective suppression up to 3.2 dB without any effect on the resonant frequency. The radiation patterns at high suppression levels of harmonics are within the range (13.92–15.2 dB) for both E-plane and H-plane. Further, the designed antenna bandwidth at the resonant frequency is \(\left( {85\;{\text{MHz}}} \right)\). Finally, the proposed antenna with \({\text{DGS}}\) had return losses and antenna gain of \(\left( { - 23.15 \;{\text{dB}};\;8.25\;{\text{dB}}} \right),\) respectively.

具有宽带谐波抑制的天线的设计将提高整体天线的性能效率，并忽略电磁噪声。有希望的是，“有缺陷的接地叠加”或与环相交的Y型槽结构满足了一种有效的方法，该方法可在设计过程中消除高水平的谐波。提出了带有有源天线辐射器和谐波抑制格栅的“ 2.4 GHz”矩形U型缝微带贴片天线。本文重点介绍了有源集成天线的几何形状，以实现有效的滤波并轻松衰减不需要的谐波。此外，已经提出了具有高次谐波抑制的嵌入式经验天线。随后是“互补开放反冲构建细胞”。\（2.4 \; {\ text {GHz}} \）。”仿真草图显示，多次谐波的反射系数有效抑制到3.2 dB，而对谐振频率没有任何影响。高抑制水平的辐射方向图E平面和H平面的谐波均在（13.92–15.2 dB）范围内。此外，在谐振频率下设计的天线带宽为\（\ left（{85 \; {\ text {MHz}}} \右）\）最后，所提出的天线。\（{\文本{DGS}} \）有回波损耗和天线增益\（\左（{ - 23.15 \ {\文本{分贝}}; \; 8.25 \; {\ text {dB}}} \ right），\）。